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The RED DEVIL INC 826 is a 100 percent silicone caulk formulated for durable sealing in both interior and exterior applications. Dispensed from a 9.8-ounce cartridge, this clear-finish sealant maintains a flexible, watertight bond across a wide temperature range, from freezing conditions to summer heat extremes. It is designed for use by plumbers, HVAC technicians, general contractors, and experienced DIYers who need a reliable, long-lasting seal on a variety of substrates. The silicone formula resists shrinking and cracking after cure, making it a practical choice for joints and gaps that experience thermal movement or moisture exposure.
This caulk suits a broad range of trade and residential applications. It performs on plumbing penetrations, HVAC equipment enclosures, window and door perimeters, and general construction joints. The clear formulation blends into finished surfaces without visible bead color, making it appropriate for both rough-in and finish work. It can be applied to interior surfaces such as around tubs, sinks, and fixtures, as well as exterior surfaces exposed to weather, UV, and temperature cycling.
Designed as a general-purpose silicone sealant for use on most non-porous and semi-porous surfaces including glass, ceramic tile, metal, and finished wood trim in residential and light commercial construction and trade applications.
Application is performed with a standard caulk gun. Surface must be clean, dry, and free of dust, grease, and old sealant before applying a new bead. Follow cure time guidance on the product packaging before exposing the joint to water or moisture. When used on HVAC or plumbing penetrations, consult applicable local mechanical and plumbing codes for required fire-stopping or vapor sealing requirements.
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