Specifications
has excellent thermal insulation properties and minimal shrinkage at high temperaturesSquare Shelf Props which are made of vermiculite - is a very useful product! Use these square posts to prop up your kiln shelf or drop out mould.
Vermiculite boards/blocks/bricks are made from vermiculite (aluminum-iron-magnesium-silicate), a natural inorganic mineral belonging to the mica-minerals group. Raw vermiculite is exfoliated by a high temperature heat treatment in the production process and expands to a lightweight aggregate which is blended with inorganic binders and pressed to form boards/blocks/bricks.
Vermiculite board/block/brick is extremely heat resistant and has many applications. It can be used to build a reusable mold box for casting, as kiln shelving(just make certain that you support the board well wih short kiln posts and use fiber paper on top of the board to prevent sticking). You can also use this board for drop rings and other similar molds(again, cover with fiber paper before slumping) . The combination of rigidty and resistance to heat(up to 2012F/1100C) also makes vermiculite board an excellent back up insulation for kilns. Keep in mind that this board is more rigid than most fiber boards or other refractory materials.