GSW Acrylic Resin Powder 500g
๐๏ธ Acrylic Resin Powder โ Just Add Water
Mix 3:1 with water โ pour into mould โ demould in 30 min. Non-toxic. No fumes. Ceramic-hard finish.
๐ฆ What You Get
500g resealable pouch of acrylic resin powder โ a single-component casting material activated by water. No two-part mixing, no harsh chemicals, no fumes. Produces hard, durable casts with excellent detail capture โ tougher than plaster, with a ceramic-like feel. Perfect partner for GSW silicone moulds.
โก How to Use
๐ฏ What's It Good For?
โ๏ธ Wargaming Terrain
- Floor tiles, paving, flagstones
- Ruins, walls, sci-fi panels
- Industrial grates and pipes
- Pairs with GSW silicone moulds
๐จ Miniature Bases
- Textured round/oval bases
- Sharp brick and stone edges
- Batch casting for armies
- Primes and paints like resin
๐ Model Railways
- Platform sections and walls
- Roads, kerbs, pathways
- Architectural elements
- Landscape features
๐๏ธ Dioramas & Scenery
- Rocks, cliffs, boulders
- Building facades
- Props and scatter terrain
- Glueable with CA/super glue
๐ Specifications
| Weight | 500g |
| Type | Single-component acrylic resin powder |
| Mix ratio | 3:1 (powder : water) |
| Demould time | ~30 minutes |
| Full cure | 24 hours |
| Shrinkage | Zero |
| Peak exotherm | ~45-50ยฐC (silicone-safe) |
| Finish | Ceramic-like, semi-matte white |
| Post-cure work | Sand, carve, drill, glue, prime, paint |
| Manufacturer | Green Stuff World (Spain) |
๐ How Does It Compare?
vs Plaster: Harder, more durable, less brittle, better detail. Handles drops better.
vs Epoxy Resin: No fumes, no two-part chemistry, water-based. Easier cleanup, safer indoors.
โ Pros
- Single component โ just add water
- Non-toxic, no harsh fumes
- Excellent detail capture
- Harder than plaster, ceramic feel
- Fast demould (~30 min)
- Zero shrinkage
- Safe for silicone moulds
โ ๏ธ Keep in Mind
- Thin/long pieces can be fragile โ reinforce with wire if needed
- Ratio matters โ measure carefully
- Too much water weakens cast
- Full strength needs 24hr cure
๐ก Pro Tip
For complex moulds, brush a thin layer of mixed resin into the details first, then pour the rest. Helps prevent air pockets and ensures crisp detail capture.
โ Safety: Non-toxic, odourless, water-based. No special ventilation required. Age 14+. Wash hands after use. Not for food contact.
๐ช Hobby Heaven โ Authorised Green Stuff World Dealer UK



