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Plaster Additives

This quality collection of Plaster Additives provides professionals with more control over their plaster's performance and physical properties. This specialised range includes plaster Accelerators and Retarders for precision management of setting times, alongside high-performance fillers like Siniat’s G400E Perlite MicroSpheres, which reduce cast weight without compromising structural integrity.

We also supply Superfine and Medium Vermiculite, a versatile filler essential for creating lightweight casts. Vermiculite is particularly favoured in the Film and TV industry, where it is used extensively to construct lightweight scenery, realistic backgrounds, and textured set pieces that are easy to manoeuvre and rig.

Whether you are aiming for industrial efficiency or cinematic realism, our additives ensure your plaster is perfectly tailored to the task at hand.
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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.