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Plaster Additives

A range of effective plaster additives designed to give you complete control over your casting process. When you need to slow your set time with a retarder for large-scale projects and teaching, or speed it up with an accelerator for faster turnarounds, our additives ensure your material performs exactly as required.
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Industrial Plasters is a one-stop shop for decorative casting plaster and mould-making supplies. As a trusted fibrous plaster supplier since 1976, we provide high-quality gypsum, resin, silicones, and clay. Proven reliability for decorative plasterwork, moulding, film studio productions, and educational use.