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resin casting powder
resin casting powder for gypsum crafts

Resin Casting Powder for DIY Gypsum Crafts

Model: 716AB    MixingRatio: 3:1 by weight

716AB resin casting powder is a manual gypsum material for craft molding, decorative casting and small model production. The 3:1 mixing ratio supports simple preparation, while room-temperature curing keeps the process easy to manage without extra heating equipment. Good leveling helps the slurry spread into mold corners and surface details, and strong defoaming performance reduces visible pores after setting. Once cured, the material forms a firm structure suitable for polishing, shaping and surface finishing. This powder fits gypsum crafts that need clean mold filling, reliable hardness and smoother post-processing.

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FAQ

Pure White & Super Fine – Easy Casting

JinHua's gypsum powder features ultra-white color, super fine texture, simple operation, safety, environmental friendliness, and fast curing. Made from high-quality materials with excellent performance, it is the perfect choice for craft enthusiasts to create gypsum artworks and showcase the beauty of gypsum art.

Easy to Use, Free to Create

Made from high-quality materials, this gypsum powder allows you to easily cast a variety of gypsum crafts with perfect results. It can be used to create small gypsum statues, gypsum ornaments, gypsum candle holders, aromatherapy containers, and more.

Operate

Prepare a clean container. Use a small amount of clean water to rinse the mold beforehand to ensure it is free of impurities. Accurately weigh the powder and liquid components strictly according to the mixing ratio, then mix them together. Stir thoroughly until fully uniform before proceeding.

Alternatively, start by pouring a small amount of the mixture into the mold, using a brush or other tool to spread it to the edges. Then, pour the remaining gypsum slurry steadily into the mold at a constant rate, always directing the flow to the same spot. While pouring, gently shake the mold back and forth to allow the slurry to fill it completely. The process is then complete.

Precautions

After mixing the powder and liquid components, use a mixing tool to stir quickly until the mixture is uniform. To avoid errors, the ratio of powder to liquid must be strictly measured by weight. During the mixing process, be careful not to overmix and pay attention to the working time; otherwise, the gypsum powder may undergo cementation (setting) while still in the mixed state, which will affect the final result.

Specifications

Product Name Gypsum Powder 716A Liquid 716B
Color Pure white, no impurities Transparent liquid
Mixing Ratio 100 : 40 (716A : 716B)
Mesh Size 2000 mesh -
Whiteness 96 -
Composition Base agent + additives -
State Change Initial: Plaster powder + transparent liquid
During mixing: Milky white liquid
After curing: Solid gypsum finished product
Working Time 3 min
Curing Time Initial set: 5–8 min
Final set: 10–15 min
Demold time: 16–18 min
Consumption Depends on specific application
Recommended Operating Temperature 25℃

Notes
1. Gypsum hardness is positively correlated with mixing uniformity; more even mixing delivers higher mechanical strength.
2. Factors affecting setting time (in order of influence): dosage of liquid additive > mixing duration > mixing container > ambient temperature > ambient humidity.

FAQ

  • What is resin casting powder used for?

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  • How do I mix the gypsum powder correctly?

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  • Is the finished craft pure white?

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  • How can bubbles be reduced during casting?

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