Red Devil RTV Silicone
Red Devil RTV Silicone: Industrial-Grade Sealing You Can Trust
When a job demands a seal that holds under pressure, vibration, and extreme temperature swings, Red Devil RTV (Room Temperature Vulcanizing) silicone steps up to the challenge. With roots stretching back to 1872, Red Devil has built a well-earned reputation as one of America's most trusted names in sealants and adhesives — and their RTV silicone offerings bring that same legacy of quality into some of the most demanding environments imaginable.
The RD PRO® Line: Built for Professionals
Red Devil's flagship RD PRO® series is the core of their RTV silicone lineup. The RD PRO® 100% RTV Silicone Heat Resistant formula is a one-component, non-slumping sealant that cures to a rubbery solid at room temperature, formulated with iron oxide to resist extreme heat exposure and withstand temperatures up to 600°F. That kind of high-temp resilience makes it a natural fit for exhaust components, gasket forming, engine bay repairs, and industrial oven applications.
For general-purpose and OEM work, the RD PRO® Industrial Grade RTV Silicone Sealant delivers equally impressive performance. It is a high-performance 100% silicone sealing and glazing compound ideal for use in most OEM and maintenance applications, forming a strong, durable, and weather-resistant seal with excellent adhesion to most non-porous surfaces. It adheres to ceramic tile, most metals, plastics, rubbers, non-oily woods, porcelain, glass, marble, fiberglass, and painted surfaces.
Durability and Compliance That Matters
One of the most compelling aspects of Red Devil's RTV silicone is its long-term reliability. The industrial-grade product backs up its performance claims with a 50-year warranty and cures to a mildew-resistant finish. For professionals working in regulated environments, the sealant meets ASTM C920 Class 25, TT-S-001543A Class A, TT-S-00230C Class A, and Mil Spec standards.
The cured sealant is permanently flexible and vibration resistant — a critical trait for automotive and powertrain applications where components are subject to constant movement and thermal cycling. It also resists cracking, shrinking, and peeling over time, meaning you won't be revisiting the same repair job a season later.
Broad Application Range
Typical applications include formed-in-place gaskets, walk-in freezer and cold-storage manufacturing, RV and trailer assembly, countertop and bathroom installation, HVAC, and sheet metal fabrication. The heat-resistant red variant is equally at home on industrial ovens, oven windows, drying ovens, boilers, fired heaters, flanged pipe joints, access doors, heating elements in appliances, and gas appliance flues.
Whether you're a professional technician building a gasket on the fly or a serious DIYer tackling a high-heat repair, Red Devil's RTV silicone products offer the industrial-grade performance and proven reliability to get the job done right. Explore the full Red Devil brand catalog to discover the complete range of sealants, caulks, and surface prep tools they offer.