Color variations common from pastel to vibrant yellow.
Working Notes
Lighter coloration matures and becomes consistent to target upon firing. A sulfur glass.May react with lead and copper glasses to create dark interface (lead sulfide, copper sulfide).
Torch: Lighter color and greater opacity than in sheet glass form. Keep it a bright yellow by working with a neutral to oxidizing flame atmosphere. Can turn gray in reduction.
Kiln: Lighter color and greater opacity than in sheet glass form.
Products 
Striker
