Lynn Manufacturing 1? Thick 18" x 24" 2300F Smoke Free Ceramic Fiber Board Fireproof Insulation, 3343A Item Description Material: Ceramic fiber refractory board. Manufacturered with iroganic binder and will not smoke or smell when initially fired. Properties: 2300F Rated for short term use, 2100F continuous use, density 20-24 lb./ft3, loss on ignition (LOI) of 0.0%. Uses: Wood stoves baffle, gas fireplace, pellet stove, pizza ovens, pottery kilns, industrial forges, blacksmith forge, propane burners, knife making forge, furnaces, oil boilers, heat shields, combustion chambers and fire protection Workability: ceramic fiber boards can be cut with a hacksaw, sanded, drilled or filed. Dimensions: 1? x 18" x 24" ? See more product details Traditional ceramic fiber boards offgass and turn black when firing - these boards have a special binder which will not smoke or release fumes. This binder also increases the board strength over traditional boards without sacrificing ease of shaping with common hand tools: utility knife, serrated blade, files, or sanding. Payment We accept payment only through the Payment system. Shipping Most products are usually shipped within 1-2 business days from the date of being ordered. We do ship worldwide via the International Shipping Program. For an international shipment quote, please add add item to cart and attempt checkout. will supply the international shipping price. Return We do not accept returns except in certain, unlikely circumstances.