Permatex Clear RTV Silicone Adhesive Sealant — 7.25 oz PowerBead Can, Weather‑Resistant Flexible Seal

Permatex Clear RTV Silicone Adhesive Sealant is a versatile, weather resistant silicone sealant used to bond, seal and protect many automotive and household surfaces.

This clear RTV (room temperature vulcanizing) silicone from Permatex comes in a 7.25 oz. PowerBead can designed for controlled bead dispensing. It creates a flexible, long-lasting seal that stands up to temperature swings, oil, grease, vibration and moisture, making it suitable for both indoor and outdoor repairs on vehicles, boats and around the home. The formula adheres to glass, metal, many plastics, vinyls and fabric while remaining workable on horizontal and vertical surfaces.

How well does this sealant tolerate heat, cold and harsh conditions?

Permatex Clear RTV is formulated to remain flexible across a wide temperature span, resisting cracking and failure when exposed to extreme conditions. It’s designed to keep adhesion and sealing performance through thermal cycling and common automotive fluids.

• Operational temperature range: -75°F to 450°F
• Resists oil, grease and weathering
• Endures vibration without losing bond integrity

What surfaces and repairs can I use it for?

This silicone adheres to a broad set of substrates commonly encountered in vehicle and household repairs. It’s suitable for sealing seams, repairing vinyl tops and weather-stripping, and protecting electrical connections when applied properly.

• Glass and windshields — sealing seams and edges
• Metal parts and door frames — sealing and bonding
• Plastics, vinyl and fabric — mends and secures soft materials
• Electrical wiring — protective coating around connections

How do I apply and cure the sealant for best results?

Application is straightforward from the PowerBead can: dispense a uniform bead, tool or smooth the joint if needed, and allow the material to skin and fully cure. For optimal adhesion, clean and dry surfaces before applying and avoid moving the joint until the sealant has set.

• Surface prep: remove oil, dirt and loose material
• Dispense steady bead, tool with a damp finger or tool for smooth finish
• Cure time varies by bead size and humidity; allow full cure before exposure to pressure or fluids

Will this product work on vertical areas and small detailed repairs?

Yes — the formulation supports application on vertical faces and detailed seams without excessive sagging. The PowerBead delivery helps control bead size for precise repairs around windows, trim and wiring.

• Non-sag formula for vertical seams and joints
• PowerBead can provides controlled dispensing for neat work
• Clear finish maintains appearance on visible surfaces

Who is this for: Permatex Clear RTV Silicone Adhesive Sealant is aimed at DIYers, automotive technicians, marine hobbyists and homeowners who need a reliable, flexible silicone sealant for sealing, bonding and protecting a variety of materials. If you work on windshield seams, door frames, vinyl tops, electrical connections or general-purpose weatherproofing, this clear RTV offers an adaptable solution that balances durability with easy application.