Agram 2024 – A Year In Review
The end of this year 2024 has come, in which after the chaotic 2023, things have returned to normal again, and in which, in addition to traditional programs, we introduced two new programs and published two new books! The first program builds on the 2023 partnership with Back to Basics and consists of miniature coloring workshops for the youngest that we conducted in the City of Zagreb Libraries, while the second program is the Agram Lego Section. Read about all of this, as well as the two new books, below.
I n s t A G R A M
Another novelty is that since 2024, UMS Agram has its own Instagram profile . During 2024, we published around 150 posts and gathered almost 200 followers!
But let's go back to the beginning of the year, which, like every year, began with our traditional Exhibition...
E X H I B I T I O N O F M I N I A T U R E S A N D T A B L E T O P S C E N E R Y
We started the year with preparations for our annual Miniatures and Models Exhibition, during which we also organized a weekend miniature painting workshop and, for the fifth time this term, our international miniature painting competition, the Black Queen Hobby and Miniature Painting Competition. As always, the Exhibition presented a cross-section of the work of the Association, its members, participants of its courses and workshops, and members of the Miniature Painters Croatia FB group. In a large number of showcases, there were numerous miniatures for tabletop strategy games, board games, and an entire showcase was dedicated to award-winning exhibits from previous miniature competitions. Several showcases were dedicated to projects that the Association has been implementing for 21 years, such as the UMS "Agram" Library and Reading Room, the Spatial Model Making Workshop, and the Miniature Painting Workshop. The works of our member Ana Polanšćak had a special place in the showcases.
Exhibition of Miniatures and Tabletop Scenery Agram 2024 was held this year from 22.2. to 10.03. 2024. The exhibition was held on Wednesday 21.2. in the afternoon and was attended by a large number of members and friends of the Association who exhibited their works.
As always, the Exhibition presented a cross-section of the work of the Association, its members, participants of its courses and workshops, and members of the Miniature Painters Croatia FB group. A large number of showcases contained numerous miniatures for tabletop strategy games, board games, and an entire showcase was dedicated to award-winning exhibits from previous miniature competitions. Several showcases were dedicated to projects that the Association has been implementing for 21 years, such as the UMS “Agram” Library and Reading Room, the Workshop for Making Spatial Models, and the Miniature Painting Workshop.
This year we hosted a special exhibitor, Gardens of Hecate. A Zagreb-based craft that makes and paints miniatures and terrains for tabletop strategy games.
During the first weekend of the Exhibition, February 24-25, we held the 18th annual international miniature painting competition Black Queen Hobby and Miniature Painting Competition!
As contestants arrived and registered for the competition, our hardworking staff photographed all the exhibits before sorting them into categories and carefully placing them in glass cases.
WARGAMING DEMOS
This year, for the first time, we organized demonstrations of the tabletop strategy games Forbidden Psalm and The Doomed. Over the course of both days, a handful of games were played on beautiful terrain!
SELLERS' COURT
During the weekend our sponsors were present with their sellers' booths: The Bigbear Miniatures, The Zone Miniatures i Carta Magica.
MINIATURE PAINTING DEMONSTRATIONS
The Vladimir Horvat Gallery space allows for workshops to be held over the weekend. Therefore, we organized three demonstration workshops over the weekend. This year, the workshops were held in a cinema hall. The lecturers' work was recorded with a camera and projected onto a projection screen in the hall.
BACK TO BASICS PAINTING WORKSHOPS FOR THE YOUNGEST
Throughout the weekend, we held our new workshops for the youngest, in which our youngest participants painted their first miniatures.
SPEED PAINTING CONTEST
On Sunday afternoon, a miniature speed painting competition was held. Participants had 90 minutes to paint one miniature. Thanks to our sponsor Hobby Chest, who provided us with a large donation of painting materials from AK Interactive, we organized a miniature speed painting competition.
With that, we came to the very end of this wonderful weekend and all that remained was the distribution of prizes and awards to the winners.
OPEN MINIATURE PAINTING WORKSHOPS
Over the next two weeks, our volunteers held open miniature painting workshops on weekdays from 4:00 PM to 8:00 PM. Miniature painting workstations were set up where our visitors could paint miniatures we had prepared (or their own if they had brought them) using our materials and tools.
On Wednesday 06.03.2024. the annual session of the Assembly was held, where we determined the guidelines for work in 2024..
W E E K E N D M I N I A T U R E P A I N T I N G W O R K S H O P S
During the second weekend of the Exhibition, March 4-5, we organized a MINITURE PAINTING WORKSHOP – Frostgrave.
The workshop was held over two days (the whole weekend) and participants painted five different figures for the Frostgrave game, which can also be used for DND sessions. The focus of these lectures is coloring several miniatures at once, but the knowledge from the workshop is equally applicable to coloring armies for boardgames and a collection of figures for pen&paper rpgs. Each participant received 1 wizard (male/female), 3 warriors (2 male and 1 female or 2 female and 1 male) and 1 male barbarian. The workshop presented paints and accessories, preparation of figures, several techniques for coloring miniatures from basic to more advanced, and techniques and tricks for quickly and efficiently coloring large quantities of figures at once. As part of the workshop, water-based acrylic paints were used. The lectures are adapted so that the leaders devote equal time to all participants and can be adapted to all categories of miniaturists (from beginners to slightly advanced).
During the weekend, May 4th-5th, we organized a MINITURE PAINTING WORKSHOP – Bretonnia.
The workshop was held over two days and the participants painted a Bretonnian knight on horseback for the tabletop strategy game Warhammer The Old World. The focus of these lectures was painting multiple miniatures at once, but the knowledge from the workshop is equally applicable to painting armies for board games and collections of figures for pen&paper RPGs. Each participant assembled their own knight with a spear, shield and ornamental helmet as well as a horse according to their own wishes. The workshop presented paints and accessories, figure preparation, several techniques for painting miniatures from basic to advanced, as well as techniques for applying stickers, and finally basing the figure. Water-based acrylic paints were used as part of the workshop..
The workshop included the following thematic units: 1. Planning and preparation and assembly of miniatures 2. Processing miniatures before painting 3. Basic colors 4. Shading and highlighting techniques 5. Placing matte stickers 6. Freehand basics
During the weekend, 21-22.9.2024, we held a new weekend miniature painting workshop called Dragon Busts. Guided by this, the organizers selected suitable dragon busts by the famous miniaturist Karol Rudyk, which all participants painted. Each participant received a unique bust from his set of busts limited to 100 copies. As part of the workshop, acrylic paints were primarily used, but oil effects could also be used.
The participants learned how to properly prepare a resin figure/bust before painting and then made an inner base for the frame from balsa, into which they placed their dragons at the very end of the workshop. This time, each participant was able to explore various effects through their painting at their own discretion. The choice of “color scheme” or whether they want to use OSL effects or anything else is left to the participant.
B A C K T O B A S I C S Miniature Painting Workshops
In 2024, we started a new program called Back to Basics miniature painting workshops for the youngest in collaboration with the Zagreb City Libraries. We held a total of four workshops during October and November with 29 participants, our youngest fellow citizens.
A G R A M L E G O S E C T I O N
As part of our Agram Lego Section, we have been organizing a series of expert lectures related to our current group LEGO project since 2024. Our experts lead lectures in various fields such as architecture, mechanical engineering, naval architecture, sculpture, etc. In 2024, we covered the topic of Hogwarts – sacral and fortification architecture of the Middle Ages.
A G R A M G R O U P B U I L D
As part of this UMS "Agram" project called Agram Group Build which was created after Kruno and Marko talked about joint projects on Wednesdays and how cool it would be to bring more people together on Wednesdays to work on something together. From that came the idea of Group Builds. In 2024 we worked on a series of busts of Musketeers .
W E D N E S D A Y' S H O B B Y C O R N E R
Wednesday's Hobby Corner is conceived as a collection of free activities in the space used by UMS "Agram" during Wednesday evening sessions. Most activities are open to everyone, with some benefits for UMS "Agram" members, such as storing miniatures in display cases between sessions or borrowing books from our extensive Library.
A G R A M A R E N A S U M M E R – T U R M 2 0 2 4
Turm 2024, part of Agram Arena Summer, organized by UMS "Agram" and Gardens of Hecate, took place in July 2024 in Zagreb.
UMS “Agram” has a tradition of awarding the best painted models/military at our events, which we could not miss at this visually stunning event.
A D V E N T I N A G R A M U
During November and December, we organized a program called Advent in Agram, which consisted of interactive workshops on making Christmas balls and shorter demonstration workshops during December. Interactive workshops involve participants making their own models according to instructions and under the supervision of a leader. No registration is required for the demonstration workshops in December, and they consist of a series of separate topics that cover model-making methods, effects, and materials related to the winter period, such as making snow, ice, and the like, which the lecturer demonstrates from behind the desk. As part of Advent, we organized:
Miniature Photography Workshop
Demonstrations In Making Winter Terrain
Workshop for making Christmas decoration in shape of a Hobbit Hole
Secret Santa
Bits and Miniatures Fleamarket
APPEARANCES AT COMPETITIONS, CONVENTIONS, EXHIBITIONS AND OTHER EVENTS
Kup Zagreb
The Zagreb Cup, a model-making competition organized by ZMMS, was held this year over two days on May 18-19, 2024, at Family Mall. The organizer asked us to participate by presenting our programs and projects, which we were happy to do.
Svet v Malem, Pivka, Slovenija
Svet v Malem, a model-making competition, was held at the Museum of Military History in Pivka, Slovenia, on May 25, 2024. We also presented our programs and activities at this competition. For the first time, our Norwegian member, Sebastian, came with us, for whom this was also the first competition abroad in which he participated. In addition to the competition, as is tradition, our Slovenian partner Back to Basics and Miniatures.si organized demonstration workshops on painting miniatures. Our Marko was also invited to hold one – on quick painting of the Bretonnian Man-at-Arms.
“First of all, the venue is perfect for a miniature convention. The Military History Park in Pivka has an interesting story, and learning about its historical and geographical importance, as well as Yugoslav military history in their museum, was certainly interesting, although for me the best part of the place were the large planes, helicopters, tanks and cars hanging or standing around the venue. This provides a perfect complement and contrast to all the tiny miniatures on display. The exhibition mostly consisted of military and historical vehicles, dioramas or displays, but the three of us entered in the slightly smaller categories of "Wargaming", "What If (Sci-fi)", "Movie Scenes", "Bust" and "Figures of All Scales". Even here, there were some pretty good entries. But most impressive of all were some of the dioramas depicting historical military events (also complementing the museum exhibits and several historical artifacts housed there), such as Winter Relax, Alsace 1944, a "Best of Show" from Moson. This large rotating diorama, complete with well-lit interiors and a completely realistic winter scene of vehicles, soldiers and equipment, was so impressive to me that we also awarded it the BEST OF SHOW by UMS AGRAM award and presented it to the author, Giampiero Bianchi.”
International TableTop Day 2024, Jalžabet
On June 8th, we organized an interactive miniature painting workshop as part of International Tabletop Day 2024 in Jalžabet near Varaždin.
Our Mario, with the help of local Viking Sebastian, led a miniature painting workshop that was supposed to last two hours, from 10 am to 12 pm. However, due to great interest, the duration was extended to almost 5 pm.
PSMK 2024, Budapest, Hungary
In parallel with the workshop in Jalžabet, our second delegation headed to Budapest to represent UMS Agram at the international model-making competition PSMK 2024. Our team, Kruno and Marko, headed there on Friday and stayed until Sunday, even though the competition itself was a one-day event.
Upon arrival in Budapest, we joined the miniaturist team for a welcome dinner with Hungarian specialties. Throughout the weekend, it was a pleasure to exchange experiences and knowledge with world-class figures such as Margot Crombeecke, Chloe Plattner, James Zhou and Miklos Bute.
On Saturday morning, we arrived at the competition and set up our stand (which later won a “We Like It” souvenir from the organizers). We then placed the exhibits in the corresponding categories and the competition could begin.
After a short deliberation, the decision to award the BEST OF SHOW by UMS AGRAM was easy to award to Chloe Plattner's wonderful display.
Kamping Kitbash
Kamping Kitbash is a three-day event dedicated to indie board games and miniatures making. This is the first edition of Kamping Kitbash, and it took place at BROEI - a converted old factory near the center of Ghent, and was organized by Nerdlab, a local collective dedicated to promoting the fusion of fine art and technology.
Throughout the weekend, there were large tables where we could all model and paint miniatures, as well as piles of figures, parts, paints, tools, brushes and kitbashing supplies.
There was at least one workshop every day of the Kitbashing Camp. On the first day, Helge (@wilhelminiatures) led a workshop on polymer clay modeling, and Terran (@conjuredcraft) on face modeling for beginners. On Saturday, there was a workshop on experimental painting led by our own Ana, and Arjan (@atelier.ag) on silicone mold making and resin casting of miniatures. On Sunday, Tara (@manglingminis) had a workshop on tabletop game design.
Modelling Cup Crna Kraljica 2024
On 05.10.2024. we performed at the Black Queen organized by HUVM. In addition to the presentation stand, our members competed and achieved notable success (all our competitors won at least a medal). Congratulations!
XIII DAYS OF TECHNICAL CULTURE 2024
On October 18th and 19th, 2024, we participated in the XIII Days of Technical Culture organized by the Zagreb Technical Culture Association.
On Friday, we held three demonstrations of model-making and miniaturist techniques (Ana, Marko and Sebastian) and participated in the Forum organized by SUPTK and DPTK with a presentation about the miniaturist and model-making workshops we organize.
On Saturday, after the official opening ceremony, we presented a new book published by UMS Agram - Miniaturism in the post-Corona era and held two series of Back to Basics workshops. The participants painted their first figures! After both days, it's time for our volunteers to have some well-deserved relaxation!
MODELMANIA @ FOTO VIDEO SHOW ZAGREB 2024
26.10. we performed at Model Mania Zagreb with the presentation of our programs:
- Advent in Agram
- Back To Basics miniatures coloring workshop for the youngest in the Reading Room and VN Gallery, 09.11.2024.
- Exhibition of miniatures and models Agram 2025
- Black Queen Hobby and Miniature Painting Competition by UMS Agram
and for the youngest we organized Back To Basics miniature painting workshops.
VISITS TO EXHIBITIONS, COMPETITIONS AND OTHER EVENTS
KZMZ Train Exhibition
On Friday, May 24th, at the invitation of the organizers of KZMZ, we visited the Train Exhibition held at the Family Mall.
FESTUNG CUP in Slavonski Brod
Our Vanja Ilijev performed at this year's FESTUNG CUP in Slavonski Brod.
National championship of Slovenia in plastic modeling
On Saturday, 16.11.2024. in Ljubljana, the Slovenian National Championship in plastic modeling was held. Our delegation performed in several categories.
It was a special pleasure for us to present and give away several copies of our latest issue to our partners and friends from Back to Basics!
Big Panda and Tiny Dragon, Character Drawing Workshop
During this year's Interliber, James Norbury, author of the books about the Big Panda and the Tiny Dragon, held several different events and meetings with readers. On Friday, November 15th, I had the opportunity to participate in a workshop on drawing characters from his books. Since James is an illustrator and his works include abstract landscapes, fantasy art, SF and cyberpunk comics, drawings and graphics, it was interesting for me to see how the panda and dragon characters are created using the technique of Japanese Zen painters.
ARTICLES IN MINIATURISM AND MODEL ART
And finally, our most comprehensive program should be mentioned. The online publication of articles from miniatures and model making that began in 2020 continued in the following years, including in 2024, with over 50 published articles this year. Hereby we would like to thank all members for their effort and commitment in making miniatures and models, but especially for taking the time to photograph work in progress and writing articles for our site.
B O O K S P U B L I S H E D B Y U M S „A G R A M“
During 2024, we published two books. The first is a Collection of Articles on Miniaturism and Modeling, the second part of which is called Miniaturism in the Post-Corona Era. The second book is the second, expanded Back to Basics edition of the Miniature Painting for Beginners manual.
UMS „Agram“ wishes you a happy New Year! See you in 2025!
Latest articles
- Painting Faces at Tabletop Level Marko Paunović, 20th May 2026
- Pigmentation principles: why do the colors look the way they do? Dunja Singer, 20th May 2026
- Painting a Floral Kimono Ivan Knezović, 5th May 2026
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Pigmentation principles: why powdered pigment doesn't work
- • Titanium dioxide (TiO₂) — IR around 2.7 → excellent coverage, strongest white pigment
- • Zinc oxide (ZnO) — IR around 2.0 → good coverage
- • Calcium carbonate (CaCO₃) — IR around 1.59 → poor coverage, filler
- • Calcium sulfate / gypsum (CaSO₄) — IR around 1.52 → almost transparent in a binder, filler
This means that gypsum and chalk, although white as a powder, become almost transparent in the formulation of a coating or mass. They do not compete with the pigment — they are subordinate to it. That's why a small amount of pigment easily and evenly colors a gypsum or chalk-based mass, while the same amount of pigment in a mass containing TiO₂ would be barely visible.
3. Agglomeration — the enemy of even color
Pigment powders do not exist as perfectly separate particles. Due to electrostatic attractive forces and surface tension, the particles spontaneously group into clusters called agglomerates or aggregates. Agglomeration is particularly pronounced in: fine particles (the smaller the particle, the higher the surface area to volume ratio, so the attractive forces are relatively stronger) pigments with a high specific surface area, such as carbon black high temperature or humidity conditions When pigment powder is mixed with filler or binder powder, the agglomerates do not break down—they remain as compact clusters. The visual result is an uneven color: dark spots where pigment particles have accumulated, and pale areas where they are absent. The user then concludes that "more pigment is needed"—but this is not true. The problem is not a lack of pigment, but its poor distribution.
4. Dispersion — meaning properly dispersed pigment
Dispersion is the process of breaking up agglomerates and evenly distributing individual pigment particles throughout a medium (water, oil, binder). A well-dispersed pigment means that the particles are as evenly distributed as possible — each filler or binder particle "sees" the pigment, not just the neighborhood of the agglomerate. Dispersion is achieved by mechanical and chemical means:
- • Mechanical: mixing with high shear forces (mixers, mill aggregates, ultrasound). Mixing with a spoon or spatula is not sufficient to break up agglomerates.
- • Chemical: the use of dispersants and surfactants that adsorb to the surface of the particle and prevent it from re-adhering to neighboring particles.
5. Why liquid colorant works better than powdered pigment
Liquid colorants are not just pigment dissolved in water. They are ready-made systems that contain: Pigment — already dispersed to the level of individual particles or very small clusters Dispersants and surfactants — which keep the particles separated and prevent re-agglomeration Liquid medium — which allows the pigment to be evenly distributed throughout the material being colored before that material begins to set or dry When a liquid colorant is added to the mixing water (e.g. in gypsum, concrete, mortar), the pigment is already in an ideal state of dispersion. The same amount of pigment is evenly delivered to each part of the mixture. The color effect is therefore much more intense than with dry-mixed pigment — with a significantly lower total amount of pigment. The same logic applies to paints and varnishes: pigment pastes and dispersed pigments provide better coverage and color uniformity than pigments that have not undergone the dispersion process.
6. Practical application — gypsum example
Gypsum is a good example because it illustrates all the above principles at once. Because it has a low refractive index (~1.52), it is not a true white pigment — it does not resist staining when mixed with a binder. This means that a small amount of black pigment can easily and evenly color the gypsum mass. Why then does it happen to many people that they have to add a large proportion of pigment in relation to the mass of plaster? Because they mix the pigment in powder form directly into the gypsum powder. Pigment agglomerates (especially Fe₃O₄ or carbon black) remain intact, the distribution is uneven, and the result is disappointing. The conclusion "we need more" is wrong — we need better.
Correct procedure:
Add the colorant (or pigment dispersed in water) to the mixing water Mix the water with the colorant well Only then add the gypsum and mix until a homogeneous mixture This way, the pigment is distributed throughout the entire mass before the gypsum begins to set. The result is an even, intense color with a much smaller amount of pigment than with dry mixing. For those who do not have access to professional colorants, a good alternative are liquid pigment additives available in building paint stores — usually in the form of small bottles intended for tinting wall paints. It is the same principle: the pigment is already dispersed in a liquid medium with additives that prevent agglomeration. Added to the mixing water, they give a more even result than powdered pigment with a significantly smaller amount.
Conclusion
The intensity and uniformity of color in a mass depend not only on the amount of pigment — they depend on how well the pigment is dispersed. A pigment powder mixed with a powder of another material almost always gives worse results than a pigment that has been previously dispersed in a liquid medium, in the presence of dispersants. When you encounter the problem of "the pigment does not color enough," it is worth asking yourself: is the problem not in the way it was added — and not in the amount.
" ["content_hrv"]=> string(9431) "Ovaj tekst nastao je nakon druženja srijedom na kojem se razvila rasprava o pigmentaciji gipsa. Kako nisam uspjela sve objasniti na licu mjesta, odlučila sam to složiti na papir — a principi o kojima je riječ ionako vrijede šire od samog gipsa.
1. Što je pigment — i što nije
Pigment je tvar koja daje boju tako što selektivno apsorbira određene valne duljine vidljivog svjetla i reflektira ostale. Crni pigment apsorbira gotovo sve valne duljine; crveni apsorbira plavu i zelenu, a reflektira crvenu. Važno je razlikovati pigment od punila. Punila su bijele ili neutralne tvari koje se dodaju u boje, premaze i mase kako bi povećala volumen, poboljšala teksturu ili snizila cijenu — ali same po sebi ne daju snažnu boju ni dobru pokrivnost. Tipična punila su kalcijev karbonat (kreda, CaCO₃), kalcijev sulfat (gips, CaSO₄), barijev sulfat i slični materijali. Razlika između pravog pigmenta i punila nije samo u boji — leži u fizikalnom svojstvu koje se zove indeks refrakcije.
2. Indeks refrakcije i pokrivnost
Indeks refrakcije (IR) opisuje koliko se svjetlost lomi i raspršuje kada prolazi kroz neku tvar ili nailazi na njezinu površinu. Što je veći, to čestica jače raspršuje svjetlost — i time djeluje neprozirnije, "pokrivnije". Nekoliko usporednih vrijednosti:
- • Titanijev dioksid (TiO₂) — IR oko 2,7 → izvanredna pokrivnost, najjači bijeli pigment
- • Cinkov oksid (ZnO) — IR oko 2,0 → dobra pokrivnost
- • Kalcijev karbonat (CaCO₃) — IR oko 1,59 → slaba pokrivnost, punilo
- • Kalcijev sulfat / gips (CaSO₄) — IR oko 1,52 → gotovo transparentno u vezivu, punilo
Ovo znači da gips i kreda, premda su bijeli kao prah, u formulaciji premaza ili mase postaju gotovo prozirni. Ne natječu se s pigmentom — podređuju mu se. Zato mala količina pigmenta lako i ravnomjerno oboji masu na bazi gipsa ili krede, dok bi ista količina pigmenta u masi koja sadrži TiO₂ jedva bila vidljiva.
3. Aglomeracija — neprijatelj ravnomjerne boje
Pigmenti u prahu ne postoje kao savršeno odvojene čestice. Zbog elektrostatičkih privlačnih sila i površinske napetosti, čestice se spontano grupiraju u nakupine koje se zovu aglomerati ili agregati. Aglomeracija je posebno izražena kod: sitnih čestica (što je čestica manja, veći je omjer površine i volumena, pa su privlačne sile relativno jače) pigmenata visoke specifične površine, poput carbon blacka (čađe) uvjeta visokih temperatura ili vlage Kada se prah pigmenta umiješa u prah punila ili veziva, aglomerati se ne raspadaju — ostaju kao kompaktne nakupine. Vizualni rezultat je neujednačena boja: tamne mrlje tamo gdje su se nakupile čestice pigmenta, i blijeda područja tamo gdje ih nema. Korisnik tada zaključuje da "treba više pigmenta" — ali to nije točno. Problem nije nedostatak pigmenta, nego njegova loša raspodjela.
4. Disperzija — što znači pravilno dispergiran pigment
Disperzija je proces razbijanja aglomerata i ravnomjernog raspoređivanja pojedinačnih čestica pigmenta kroz medij (vodu, ulje, vezivo). Dobro dispergiran pigment znači da su čestice što ravnomjernije raspoređene — svaka čestica punila ili veziva "vidi" pigment, a ne samo susjedstvo aglomerata. Disperzija se postiže mehaničkim i kemijskim putem:
- • Mehanički: miješanje s visokim smičnim silama (mikseri, mlinski agregati, ultrazuk). Miješanje žlicom ili lopaticom nije dovoljno za razbijanje aglomerata.
- • Kemijski: upotreba dispergirnih sredstava (dispergatora) i surfaktanata koji se adsorbiraju na površinu čestice i sprječavaju njezino ponovno lijepljenje za susjedne čestice.
5. Zašto tekući kolorant radi bolje od pigmenta u prahu
Tekući koloranti nisu samo pigment otopljen u vodi. To su gotovi sustavi koji sadrže: Pigment — već dispergiran do razine pojedinačnih čestica ili vrlo malih klastera Dispergatore i surfaktante — koji drže čestice razdvojenima i sprječavaju ponovnu aglomeraciju Tekući medij — koji omogućuje da se pigment ravnomjerno rasporedi kroz materijal koji se boji još prije nego što taj materijal počne vezati ili sušiti Kada se tekući kolorant doda u vodu za miješanje (npr. kod gipsa, betona, žbuke), pigment je već u idealnom stanju disperzije. Svakom dijelu smjese ravnomjerno se isporučuje ista količina pigmenta. Efekt boje je stoga mnogo intenzivniji nego kod suho miješanog pigmenta — uz znatno manju ukupnu količinu pigmenta. Ista logika vrijedi za boje i lakove: pigmentne paste i disperzirani pigmenti daju bolju pokrivnost i ravnomjernost boje od pigmenata koji nisu prošli proces disperzije.
6. Praktična primjena — primjer gipsa
Gips je zahvalan primjer jer ilustrira sve navedene principe odjednom. Budući da ima nizak indeks refrakcije (~1,52), nije pravi bijeli pigment — u smjesi s vezivom ne pruža otpor bojanju. To znači da mala količina crnog pigmenta može lako i ravnomjerno obojiti gipsanu masu. Zašto se onda mnogima događa da moraju dodati veliki udio pigmenta u odnosu na masu gipsa? Jer pigment miješaju u obliku praha direktno u prah gipsa. Aglomerati pigmenta (posebno Fe₃O₄ ili carbon black) ostaju netaknuti, raspodjela je neujednačena, i rezultat je razočaravajući. Zaključak "treba više" je pogrešan — treba bolje.
Ispravni postupak:
Kolorant (ili pigment dispergiran u vodi) dodati u vodu za miješanje Dobro promiješati vodu s kolorantom Tek tada dodati gips i miješati do homogene smjese Na taj način pigment bude raspoređen kroz cijelu masu još prije nego gips počne vezati. Rezultat je ravnomjerna, intenzivna boja uz višestruko manju količinu pigmenta nego pri suhom miješanju. Za one koji nemaju pristup profesionalnim kolorantima, dobra alternativa su tekući pigmentni dodaci dostupni u trgovinama građevinskih boja — najčešće u obliku malih bočica namijenjenih nijansiranju zidnih boja. Radi se o istom principu: pigment je već dispergiran u tekućem mediju s aditivima koji sprječavaju aglomeraciju. Dodani u vodu za miješanje, daju ravnomjerniji rezultat od pigmenta u prahu uz znatno manju količinu.
Zaključak
Intenzitet i ravnomjernost boje u nekoj masi ne ovise samo o količini pigmenta — ovise o tome koliko je taj pigment dobro dispergiran. Prah pigmenta miješan u prah drugog materijala gotovo uvijek daje lošije rezultate od pigmenta koji je prethodno dispergiran u tekućem mediju, uz prisustvo dispergirnih sredstava. Kada se susretnete s problemom "pigment ne boji dovoljno", vrijedi si postaviti pitanje: nije li problem u načinu na koji je dodan — a ne u količini.
" ["created"]=> string(19) "2026-05-04 12:54:47" ["modified"]=> string(19) "2026-05-04 20:10:17" } ["Member"]=> array(10) { ["id"]=> string(3) "108" ["group_id"]=> string(1) "2" ["first_name"]=> string(5) "Dunja" ["last_name"]=> string(6) "Singer" ["first_name_mask"]=> string(5) "dunja" ["last_name_mask"]=> string(6) "singer" ["username"]=> string(5) "Dunja" ["password"]=> string(40) "772414a5d6b32309f32f46e9009f1e550809c62d" ["born"]=> string(19) "2006-01-01 00:00:00" ["created"]=> NULL } } Dunja Singer, 4th May 2026 - We visited: Warhammer World – pt.3 Ivan Vedak, 4th May 2026
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