Loctite® silicone gasketing materials include unique products  with excellent fluid resistance, formulations for high operating temperatures and UV-curing formulations for cure-in-place production requirements. Silicone gasketing products are best  suited for large gap applications and stamped metal assemblies where flange flexing occurs.

FORMED-IN-PLACE

LOCTITE 5045™ FLANGE SEALANT

Non- Corrosive, Alkoxy Silicone
RTV paste, excellent for adhesion, sealing and gasketing applications.

LOCTITE® 5600™ SILICONE SEALANT

Two-Part
Fast, five minute fixture, high adhesion, flexible adhesive/sealant. Available in black, grey, and almond.

LOCTITE 5699™ GREY, HIGH PERFORMANCE RTV SILICONE GASKET MAKER

For rigid flange assemblies. Excellent fluid resistance. Easy to dispense, non-corrosive, low odor, low volatility. Grey in color.

LOCTITE  5900 FLANGE SEALANT

Heavy Body RTV Silicone
Superior flexibility and adhesion. Provides instant seal. Excellent fluid resistance. Non-corrosive, low odor, low volatility. Black in color.

LOCTITE 5905™ FLANGE SEALANT

RTV Silicone
Superior flexibility and adhesion, fast depth of cure. Offers excellent fluid resistance. Now available in black and white

LOCTITE 5910 FLANGE SEALANT

RTV Silicone
Superior flexibility and adhesion. Excellent fluid resistance. Medium body and easy to dispense. Noncorrosive, low odor, low volatility. Black in color.

LOCTITE 5920™ COPPER, HIGH PERFORMANCE RTV SILICONE GASKET MAKER

High performance for rigid flange assemblies. Low volatility. Copper in color.

LOCTITE 5999™ FLANGE SEALANT

Heavy Body/Grey High Performance RTV Silicone Gasket Maker
For rigid flange assemblies. Provides instant seal. Excellent fluid resistance. Non-corrosive, low odor, low volatility. Grey in color.

CURED-IN-PLACE

LOCTITE 5039™ NUVA-SIL SILICONE ADHESIVE SEALANT

Designed for automated assembly. Rapid, 30 second, UV or visible light cure permits in line processing. Secondary moisture cure insures full cure even in shadowed areas. Translucent in color.

LOCTITE 5950™/5951™ FASTGASKET FLANGE SEALANTS

Designed for automated assembly. Rapid, 30 second, UV cure permits in line processing. Secondary moisture cure insures full cure even in shadowed areas. Black/clear in color.

LOCTITE 5960™ FASTGASKET FLANGE SEALANT

Designed for automated assembly. Rapid, 30 second, UV cure permits in line processing. Fluid resistant. Clear in color.

LOCTITE  5963™ PROCURE CURE-IN-PLACE GASKET

Heat Cure Compression
Superior compression set resistance. One-component, exceptional fluid resistance,
and heat resistance to 150°C. Great for powertrain applications. Grey in color.

LOCTITE 5964™ PROCURE CURE-IN-PLACE GASKET

Heat Cure Compression
Soft, with greater elongation. Cures with either convection heat or microwave. One-component, good compression set for powertrain applications. Brown in color.

HIGH PERFORMANCE RTV SILICONES

LOCTITE  INSTANT GASKET

Makes high performance, leakproof gaskets in one minute. Equipment can be returned to service immediately. Blowout resistant. Outperforms precut gaskets.

LOCTITE® 598™ BLACK, HIGH PERFORMANCE RTV SILICONE GASKET MAKER

Retains high flexibility and oil resistance for longer gasket life. Temperature range is -75°F to 625°F (-59°C to 329°C) intermittent. Low odor, non-corrosive, low volatility. Resistant to most chemicals and solvents. Fills gaps to 0.25".

LOCTITE 587™ BLUE, HIGH PERFORMANCE RTV ILICONE GASKET MAKER

Forms tough, flexible gaskets directly on the flange. Offers excellent adhesion to oily surfaces. Low odor, non-corrosive, low volatility. Withstands temperatures to 500°F (260°C) intermittent. Resistant to most chemicals and solvents. Fills gaps to 0.25".

SUPERFLEX® RTV SILICONES

LOCTITE SUPERFLEX BLUE RTV SILICONE ADHESIVE SEALANT

Cures to a tough, flexible rubber. Makes reliable “formed-in-place” gaskets that resist shrinking, cracking, and migrating. Coats pre-cut gaskets to increase reliability. Temperature range is -65°F to 500°F (-54°C to 260°C) intermittent. Low volatility. Fills gaps to 0.25".

LOCTITE SUPERFLEX  RED HIGH TEMP RTV SILICONE ADHESIVE SEALANT

Makes gaskets that resist temperatures to 600°F (315°C) intermittent. Resists aging, weather, and thermal cycling without shrinking, cracking, or hardening. Fills gaps to 0.25".

LOCTITE SUPERFLEX NON-CORROSIVE RTV CLEAR SILICONE ADHESIVE SEALANT

Neutral curing and non- corrosive. For aluminum, concrete, and electrical applications. Temperature resistant to 400°F (204°C) continuous service, 500°F (260°C) intermittent.

LOCTITE SUPERFLEX RTV SILICONE ADHESIVE SEALANT

General purpose, one-part silicone adhesive sealant cures at room temperature to form a tough rubber seal. Will not slump in overhead or vertical applications. Formulated to withstand extreme temperature cycling, UV light, and ozone. Cannot be painted. Available in black, clear, and white.

URETHANE SEALANT

LOCTITE URETHANE SEALANT

Single component, gun-grade caulk that bonds, seals, and waterproofs up to 180°F. Outstanding adhesion properties to concrete, masonry, glass, plastics, wood, aluminum, and most other metals.