Dow Corning 99180561 Rtv Silicone Joint Sealant 10.1 Oz

Product Description

The DOW CORNING 99180561 is a single-component RTV silicone joint sealant packaged in a 10.1 oz tube. Part of the 748 Series, it cures at room temperature to form a flexible, durable seal suitable for a wide range of industrial and mechanical joint applications. The sealant achieves a tack-free surface in 30 minutes and reaches full cure in 36 hours. It operates across a temperature range of -67 degrees F to 350 degrees F, making it appropriate for both low-temperature cold environments and high-heat applications. The off-white color blends cleanly with light-colored substrates. Licensed contractors and maintenance technicians working on food-safe process equipment will find this formulation meets applicable regulatory standards.

This sealant is suited for sealing joints, gaskets, and penetrations in commercial and industrial settings where food contact compliance is required. It is also appropriate for HVAC, plumbing, and mechanical systems where a flexible, temperature-resistant RTV silicone seal is needed. The 748 Series formulation is designed for applications demanding compliance with both food safety and military specifications. The 10.1 oz tube format is compatible with standard caulking guns, making it practical for field and shop use alike.

Key Features

• RTV silicone chemistry cures at room temperature without requiring heat or UV activation
• Tack-free in 30 minutes, full cure in 36 hours for efficient workflow
• Operating temperature range: -67 degrees F to 350 degrees F
• Food safe per 21 CFR 177.2600
• Meets MIL-A-46146 military specification
• 10.1 oz tube format works with standard caulking guns

Compatibility

Designed as an OEM-style replacement or general-use RTV silicone sealant for joint sealing applications in HVAC, plumbing, and food-processing equipment where flexible, heat-resistant silicone seals are required.

Installation Notes

Application should be performed by a qualified technician or tradesperson familiar with sealant work under applicable codes. Clean and dry all mating surfaces thoroughly before applying; contaminants will reduce adhesion. Allow the full 36-hour cure time before exposing the joint to operating temperatures or fluid pressure. Avoid disturbing the bead during the tack-free phase to prevent surface defects in the finished seal.