Henkseal® Ultra Copper/Grey/Blue 100% RTV Silicone Sealant & Gasket Maker

• Customization: Available
• Material: Organic Silicone
• Application: Industrial, Valve Covers,Oil Pans,and Timing Covers
• Model NO.: HK085RS
• Certification: ISO, FDA, REACH, RoHS
• Appearance: Black, Grey, Copper, Red
• Odor: Odor
• Tensile Strength(MPa): 2.1
• 24 Hour Cure Rate(mm): 2.8
• Surface Drying Time(Mins): 10
• Density(g/cm3): 1.27±0.20 G/Cm
• CAS No.: 63148-60-7
• Ec No.: 613-154-4
• Transport Package: Carton
• Specification: 3. OZ/85g
• Trademark: HENKSEAL
• Origin: China
• HS Code: 3506100010
• Production Capacity: 10000/Month

Product Description

Product Description

Henkseal® Ultra Copper/Grey/Blue 100% RTV Silicone Sealant & Gasket Maker - the ultimate solution for high-performance sealing in demanding automotive and industrial applications.  Engineered with advanced silicone technology, this premium RTV (Room-Temperature Vulcanizing) sealant is designed to replace conventional pre-cut gaskets, offering superior flexibility, durability, and resistance to extreme conditions.  Whether you're a professional mechanic, a DIY enthusiast, or working on heavy-duty machinery, Henkseal® RTV Silicone Gasket Maker delivers reliable, long-lasting performance for engines, transmissions, differentials, and more.With a temperature resistance range of -65°F to 600°F (-54°C to 316°C), this sealant withstands the intense heat generated by engine components like cylinder heads, exhaust manifolds, and oil pans. It remains pliable even under extreme thermal cycling, preventing cracks and leaks that compromise engine efficiency.

Product Benefits

• Oil & Chemical Resistance:Repels engine oils, transmission fluids, antifreeze, and solvents, preventing degradation and leaks in harsh chemical environments.

• Extreme Temperature Resilience:Withstands blistering heat up to 599°F(315°C) and freezing conditions as low as -65°F (-54°C), ensuring reliable seals in engines, exhaust systems, and industrial machinery.

• Universal Compatibility:Bonds to metal, plastic, rubber, and composites, making it perfect for automotive, marine and industrial applications.

• Quick Cure & Easy Application:Cures rapidly at room temperature with no special tools required. The precision nozzle and non-sag formula enable clean, accurate application.

• Vibration-Proof & Long-Lasting:Flexible silicone design absorbs shocks and thermal expansion, outperforming rigid gaskets for a durable, maintenance-free seal. 


Directions for use
1. Clean up the base material surface, make it dry and oil free.

2. Screw on nozzle and cut it to desired bead size.

3. Apply it on the surface, it will be fully dry after 24 hours.