Catalog › IR Fused Silica Image 1 of 1 IR Fused Silica from $9.00 Substrate: IR Fused SilicaSize: 1" DiameterSurface Quality: 20/10 or betterFlatness: 1/4 wave or betterPlano/Plano Thickness: Select Thickness 6.35mm Qty:1-99 6.35mm Qty:100-499 6.35mm Qty:500+ 3.175mm Qty:1-99 3.175mm Qty:100-499 3.175mm Qty:500 Add To Cart Added! Substrate: IR Fused SilicaSize: 1" DiameterSurface Quality: 20/10 or betterFlatness: 1/4 wave or betterPlano/Plano