SL-330 4 Minutes Steel Epoxy is a steel filled fast setting, non-shrinking gray color epoxy adhesive. It offers good gap-filling capabilities and slumping characteristics. It will chemically bond steel, brass, copper, bronze, iron, plastic, wood, concrete and ceramics. Withstands high temperatures and is pressure resistant. Use to repair: worn valve seats, cracked housings, coopers and cylinder heads, gas tank leaks, radiator leaks, torn keyways, stripped threads, worn pulleys, loose screws, etc.