Dow Corning 2423472 Rtv Silicone Joint Sealant 3 Oz Red

Product Description

The DOW CORNING 2423472 is a red RTV silicone joint sealant in a 3 oz tube, designed for high-temperature sealing applications in mechanical and industrial systems. Formulated as part of the 736 series, it delivers a tack-free dry time of 17 minutes and a full cure time of 24 hours. The operating temperature range spans -85 degrees F to 500 degrees F, making it suitable for demanding thermal environments. It adheres to both metal and plastic substrates and carries a food-safe designation under 21 CFR 177.2600. Licensed HVAC technicians, plumbers, and mechanical contractors install this product when forming reliable, heat-resistant gasket seals on flanges and mating surfaces.

This sealant is used wherever a durable, flexible gasket or flange seal is required across residential and commercial mechanical systems. Typical applications include flange joints, custom gasket forming, and sealing mating metal or plastic surfaces subject to elevated temperatures or thermal cycling. The 3 oz tube format is practical for field service and maintenance work. Its paintable surface and food-safe certification extend its use to food-processing equipment and similar regulated environments.

Key Features

• RTV silicone formulation provides flexible, heat-resistant seals from -85 degrees F to 500 degrees F
• Tack-free in 17 minutes with full cure in 24 hours for efficient turnaround on service calls
• Food safe per 21 CFR 177.2600 and meets MIL-A-46106 military specification
• Adheres to metal and plastic substrates without primer in most applications
• Paintable surface finish for installations requiring a finished appearance
• 3 oz tube format for easy field application and controlled dispensing

Compatibility

Designed for use on metal and plastic flange and gasket surfaces in mechanical, HVAC, and industrial assemblies where RTV silicone sealant is specified. Part of the DOW CORNING 736 series (series part number 736-Red).

Installation Notes

Apply to clean, dry, and degreased surfaces for best adhesion. Allow the sealant to reach tack-free state before exposing the joint to moisture, and wait the full 24-hour cure time before returning the assembly to service under load or pressure. Follow applicable codes and manufacturer guidelines for the specific system being serviced.