Brown glass

Adding FeS, Na2S2, NaFeS2, etc., to the glass raw material, and then adding thermal reduction to the reducing air, it will turn brown. Brown glass can be used as a decorative material.

Colored glass is a kind of energy-saving decorative glass that can not absorb solar heat rays and maintain good transmittance.

Colored glass usually has a certain color, so it is also called colored heat-absorbing glass.

Colored glass comes in blue, brown, gray, green, gold and other colors.

Colored glass can effectively absorb solar radiant heat.