Fused Silica

Washington Mills is a supplier of fused silica. Fused Silica is made from high purity silica, using unique fusion technology to ensure the highest quality. Our Fused Silica is over 99% amorphous and has an extremely low coefficient of thermal expansion and high resistance to thermal shock.

Fused Silica is inert, has excellent chemical stability, and has extremely low electrical conductivity.


  • investment casting
  • refractories
  • foundries
  • technical ceramics