KISREL Resin Casting Powder 3 kg — Fast-Setting Paintable Plaster, Low-Odour 3000g

KISREL Resin Casting Powder 3000g is a fine gypsum plaster formulated to mix easily with water for fast-setting, paintable casts suitable for coasters, sculptures, and decorative objects.

This upgraded 3 kg package of resin casting powder gives hobbyists and makers a reliable, low-odour plaster that sets quickly while delivering a smooth, opaque white finish ready for colouring or sealing. It was developed for hobby casting, home décor projects, and small-scale production where predictable set times, good bubble release, and a sturdy cured surface are important. Because the plaster accepts pigments and surface treatments well, it’s flexible for creative finishes after demolding.

How do I mix and prepare the powder for best results?

Mixing is straightforward: use a weight ratio of 3 parts powder to 1 part water, stir until uniform, then pour. Adjusting water slightly changes working time and flow, so test small batches to dial in consistency for your mould type.

• Mix ratio: powder to water = 3:1 by weight.
• Stir 2 minutes after adding pigment for even coloration.
• Tapping or vibrating the mould helps remove trapped bubbles.
• Pour immediately once mixed to maintain working time.

What are the setting and demolding times I can expect?

The plaster reaches initial demold strength in about 25–30 minutes, with deeper cure and handling strength in roughly 2 hours. These times depend on ambient temperature, humidity, and the exact water ratio you use.

• Demolding: typically 25–30 minutes under normal conditions.
• Full handling cure: approximately 2 hours for standard thicknesses.
• Warmer temperatures accelerate set time; cool conditions slow it down.
• Thin pours cure faster than thick sections—adjust planning accordingly.

Can I colour, finish, or seal casts made with this plaster?

Yes — the plaster dries to an opaque white surface that takes pigments, mica, and glitters during mixing, and accepts water-based acrylics, sealers, or waxes after cure. Choose the colouring method that matches your desired look and durability needs.

• Add pigment, mica, glitter, or small aggregates while mixing for integrated colour or texture.
• Use water-based acrylic paints for vivid surface colour after curing.
• Seal with varnish, acrylic sealer, or wax to increase moisture resistance and surface durability.
• Fine sanding after full cure refines edges before painting or sealing.

What projects work best with this resin casting powder?

This plaster suits a wide range of creative and decorative uses where a sturdy, heat-resistant, and non-flammable cast is desired. It’s optimised for small to medium moulds made of silicone or rubber and performs well in repeated hobby production runs.

• Coasters, candle bases, trinket trays, and small planters.
• Sculptural pieces, figurines, and decorative relief panels.
• Textured ceramic-look décor and hobby model components.
• Prototyping or one-off artisanal products that require paintable surfaces.

Who is this for: Makers, craft hobbyists, and small-batch artisans who need a large, consistent supply of fine gypsum plaster for fast-setting, paintable casts will find the KISREL Resin Casting Powder 3000g useful. It is ideal when you want predictable mixing ratios, quick turnaround between pour and demold, and a finish that accepts pigments and sealers. Not recommended for structural load-bearing applications; for best outcomes, follow mixing ratios and cure guidance and run a small test cast before large projects.