Diversitech 803717 Food Grade Rtv Silicone Sealant 10.3 Oz

Product Description

The DIVERSITECH 803717 is a food-grade, 100% RTV acetoxy-cure silicone sealant formulated for demanding sealing applications where temperature resistance, flexibility, and moisture resistance are required. Dispensed from a 10.3 fl. oz. cartridge using a standard caulk gun, this white paste-consistency sealant cures by exposure to atmospheric moisture. It delivers a continuous-use temperature rating of -60 to 450 degrees F, making it suitable for high-heat zones in HVAC, refrigeration, and food-service equipment. With a VOC content of 29 g/L (less than 3.0% by weight), it meets low-emission requirements common in commercial and institutional settings. Licensed HVAC technicians, plumbers, and refrigeration mechanics rely on this product for sealing joints and penetrations where standard silicones would fail under thermal cycling.

This sealant is suited for residential and commercial HVAC systems, food-service equipment, refrigeration units, and general mechanical applications. It adheres to glass, wood, metal, porcelain, ceramic tile, painted surfaces, and rubber. The acetic acid (acetoxy) cure chemistry provides a durable, long-term flexible seal. The cartridge format integrates with standard caulk guns, making it practical for field service work. It is non-paintable, so final finish planning should account for the white color at installation.

Key Features

• Food-grade 100% RTV silicone formulation rated for continuous use from -60 to 450 degrees F
• Moisture-cure (RTV acetoxy) chemistry with 1-hour dry-to-touch time, 24-hour full cure, and 168-hour optimum strength
• UV and water resistant for long-term flexibility in exposed or wet environments
• Low VOC content: 29 g/L (less than 3.0% by weight)
• 10.3 fl. oz. cartridge compatible with standard caulk guns
• Adheres to glass, metal, wood, porcelain, ceramic tile, painted surfaces, and rubber

Compatibility

Designed for use on glass, wood, metal, porcelain, ceramic tile, painted surfaces, and rubber substrates. Suitable for food-service equipment, HVAC assemblies, and refrigeration applications requiring a food-grade-rated sealant. This product is non-paintable.

Installation Notes

Application is typically performed by licensed HVAC technicians, refrigeration mechanics, or plumbers. Before applying, ensure the substrate is clean, dry, and free of grease, dust, and loose material for proper adhesion. The acetoxy cure process releases acetic acid vapor during curing, so work in a ventilated area. Allow the sealant to reach full cure (168 hours for optimum strength) before subjecting the joint to continuous high-temperature or high-stress conditions.

Technical Specifications

• Temperature Rating: -60 to 450 degrees F (continuous use)
• Net Content: 10.3 fl. oz.
• Container Type: Cartridge
• Color: White
• Cure Type: Moisture Cure (RTV Acetoxy)
• Dry Time (To Touch): 1 hour
• Full Cure Time: 24 hours
• Optimum Strength Cure Time: 168 hours
• VOC Content: 29 g/L (less than 3.0% by weight)
• Form: Paste
• Scent: Acetic Acid
• Specific Gravity: 1.007 g/cm3
• Flash Point: 212 degrees F
• Base: Silicone

Standard Information

• Brand: DIVERSITECH
• Manufacturer Part Number: 803717