Bsc Preferred 81630 Ultra Red Rtv Silicone Gasket Maker

Product Description

The BSC PREFERRED 81630 is a high-temperature RTV silicone gasket maker and dressing formulated for demanding automotive and HVAC repair applications. This 3.35-ounce tube delivers an advanced silicone compound that withstands intermittent temperatures up to 650 degrees F (343 degrees C), exceeding the performance of standard RTV red silicone products. The formula is sensor safe, low odor, non-corrosive, non-flammable, and non-toxic, making it practical for shop environments. It can function both as a formed-in-place gasket maker and as a gasket dressing over existing gaskets. Licensed tradespeople and fleet technicians working on exhaust, engine, and HVAC sealing applications will find this product meets OEM silicone gasket performance specifications.

This gasket maker is suited for high-heat sealing tasks in automotive, fleet, and HVAC service settings. Typical applications include exhaust headers, intake and exhaust manifolds, slip-fit exhaust connections, and turbocharged system components where conventional gasket materials fail due to heat cycling. The product is OEM specified and resists breakdown from oils and common shop fluids, making it appropriate for both initial assembly and field repair work on vehicles and mobile HVAC equipment.

Key Features

• Withstands intermittent temperatures up to 650 degrees F (343 degrees C)
• Exceeds temperature resistance of standard RTV red silicone formulas
• Sensor safe, low odor, non-corrosive, non-flammable, and non-toxic
• Resistant to oils and common shop fluids
• Functions as both a gasket maker and a gasket dressing
• Meets OEM silicone gasket performance specifications

Compatibility

Suitable for use on exhaust headers, manifolds, slip-fit exhaust parts, and turbocharged components in automotive and fleet HVAC applications where high-temperature RTV silicone sealant is required.

Installation Notes

Surface preparation is critical before application - clean mating surfaces thoroughly to remove old gasket material, grease, and debris. Apply a continuous bead of the appropriate size to one flange surface and allow the sealant to begin skinning before assembly per standard RTV procedure. Allow adequate cure time before returning the system to service or introducing fluids. Follow applicable vehicle manufacturer guidelines and shop safety protocols when working on exhaust or pressurized systems.