High performance one-step RED 100% silicone sealant for high temperature applications, provides a strong, durable, and flexible seal to wood, glass, metal, porcelain, ceramic, painted surfaces, and many plastics and rubber materials. It's resistant to weathering, vibration, shrinking, peeling, or cracking. High Temp Red allows for a permanently flexible waterproof seal. Ideal for pipes, ducts/vents, valves, tanks, gaskets, and flues. Performs at temperatures ranging from -80°F to +600°F. Joint movement +/- 25%; superior gunning and tooling; all season ease of application.