Gasket & Jointing Compound

Resistant to a wide range of fluids including most fuels, oils and lubricants.
Use on gaskets and metal surfaces.
Temperature Range: -50 to 250°C

Gasketing Product - general purpose. Ideal for use on machined and rigid metal flanges
LOCTITE® 574 seals close-fitting joints between rigid metal faces and flanges. The product cures when confined in the absence of air between close-fitting metal surfaces. It provides resistance to low pressures immediately after assembly. Typically used as a form-in-place gasket on rigid flanged connections. The nature of LOCTITE® 574 reduces the migration of liquid product after application to the substrate. It has a high oil tolerance and excellent water and glycol resistance.
Excellent water and glycol resistance
Ideal for use on rigid metal parts, e.g. cast iron components and pump housings
High oil resistance

Medium strength gasketing product for machined metal flanges where semi-flexibility is required.
LOCTITE® 5208 is a medium strength (6 N\mm² tensile shear strength), methacrylate-based gasketing product that offers semi-flexible capability. Intended for use with machined, rigid metal flanges, the product is suitable for gaps up to 0.125 mm and cures anaerobically. It is used typically as a form-in-place gasket on gearboxes and engine casings.
Medium strength, semi-flexible
Seals close fitting joints
Designed for machined metal flanges

Metallic black, 1-part, thixotropic, room temperature vulcanizing oxime silicone paste sealant.
LOCTITE® SI 598 is a metallic black, 1-part, thixotropic, room temperature vulcanizing oxime silicone paste sealant. It cures on exposure to moisture in the air to form a tough, flexible, silicone rubber gasket. It resists ageing, weathering and thermal cycling without hardening, shrinking or cracking. This product is typically used in applications with an operating range of -54 to +260°C.
Enhances load bearing & shock absorbing characteristics of the bond area
Excellent resistance to automotive engine oils
Typical applications include oil pans, transmission pans, valve covers, valves and guides, timing gear covers, and differential covers

LOCTITE® 518 is a medium-strength, general purpose gasketing product with excellent contamination tolerance. Ideal for use on casted iron, steel and aluminium flanges.
LOCTITE® 518 cures when confined in the absence of air between close-fitting metal surfaces. It is an anaerobic gasketing material designed for use on rigid iron, aluminum, and steel flanged mating surfaces. LOCTITE® 518 fills gaps up to 0.25mm and forms a flexible, chemical-resistant seal that will not tear or decay. Parts disassemble easily, even after extended service. Typical applications include sealing close-fitting joints between rigid metal faces and flanges. It is also used as a formed-in-place gasket on rigid flanged connections, e.g. transmissions and motor housings.
Semi-flexible, medium-strength anaerobic flange gasket
For active and inactive rigid metal flanges
Cures through minor surface contamination
Adapts to flange surface irregularities and gaps up to 0.25 mm
Gel-type consistency
Seals instantly against low pressure
Reduces inventory costs – no need for large inventory of cut gaskets
Resists high pressure when fully cured
No compression set or misaligned gaskets
Easy to automate
Reduces process costs – eliminates manual assembly of conventional gaskets
NSF P1 Reg. No. 123758

LOCTITE® SI 5910 is a low strength gasketing product for flexible flanges that has good resistance to oil and joint movement.
LOCTITE® SI 5910 is a low strength, silicone-based gasketing product designed for use on flexible flanges with machined or cast surfaces (metal or plastic). It is suitable for gaps up to 1 mm and offers a cure-through volume (in 24 h) of 2.75 mm. Typical applications include stamped sheet metal covers (timing covers and oil sumps).
Good resistance to oil and joint movement
Can be supplied in cartridges, tubes or rocep cans
For use with flexible flanges
Reduces migration of liquid after application

Gasketing product for machined metal flanges. Medium strength. For gaps up to 0.25 mm. 30 min fixture time.
LOCTITE® 515 is a medium strength (6 N\mm² tensile shear strength), medium cure speed, methacrylate-based industrial gasketing product designed for machined, rigid metal flanges. The product, which cures anaerobically, is suitable for gaps up to 0.25 mm. It is used typically as a form-in-place product for pumps, thermostats, compressors, transmission housings and axle covers.
Ideal for machined metal components
Perfect seal between components
For gaps up to 0.25 mm

Bondloc B515 is a flexible, medium-strength gasketing anaerobic sealant that cures when confined in the absence of air between close-fitting metal parts.
B515 is medium strength Industrial gasketing product and provides an instant low pressure seal on machined and rigid metal parts.
Typical applications include pumps, thermostats, compressors, transmission housings and axle covers.
Colour: Purple
Viscosity: Paste
Gap Fill: 0.3mm
Tensile Strength on Steel : Less than 6Nmm2 (ISO 4587)
Fixture Time: Less than 35 mins
Full Cure Time: 12 hours
Min Max Temp: -55°C - +150°C

Bondloc B518 cures when air is excluded between close-fitting metal surfaces.
B518 is a semi-flexible medium strength gasketing product recommended for use on rigid iron, stainless steel, aluminium, and steel flanged jointed surfaces.
Fills gaps up to 0.25mm and is chemically resistant.
Ideal for use on rigid metal faces and flanges i.e. pumps, motor housings and transmissions.
Colour: Red
Viscosity: 200,000 - 800,000cps
Gap Fill: 0.25mm
Tensile Strength on Steel: Greater Than 5Nmm2 (ISO 4587)
Fixture Speed:Less than 2 hours with activator
Full Cure Time: 12 hours
Min Max Temp: -55°C - +150°C

Non-cracking formulation ideal for engine gaskets, cylinder heads, water pumps, gear boxes, threaded assemblies, flanges and pipe joints.
Colour : Blue
Base : Solvent
Viscosity : 5,000cps
Gap Fill : 0.5mm

Forms a tough, flexible gasket or seal that resists ageing, weathering and thermal cycling without hardening. Ideal for oil pans, transmission pans, differential covers, timing gears and valve covers. Suitable for sealing aluminium and metal ducting, refrigeration applications and hygiene seals.
Colour : Black / Red
Base : Acetoxy
Viscosity : Paste
Min Max Temp : -55°C - +350°C (Intermittent)
Skinning Time : 5 mins 20°C

Resistant to a wide range of fluids including most fuels, oils and lubricants.
Use on gaskets and metal surfaces.
Temperature Range: -50 to 250°C