Collection: Assembly pastes

Assembly pastes and repair compounds for automotive use

Vehicle exhaust and component repairs may involve pastes and compounds with different properties. This category includes exhaust assembly pastes, silencer repair cements and specialist repair compounds. Products have different applications and should not be treated as interchangeable.

What is exhaust assembly paste used for?

Some pastes are designed to seal specified exhaust joints during assembly. Check the permissible operating temperature, curing procedure, component materials and application instructions. Do not assume a compound can repair extensive corrosion or replace mechanical repair of a damaged silencer.

When can a metal repair compound be used?

Spot-repair compounds have limitations relating to load, temperature, surface material and chemical resistance. Take particular care around fuel tanks and safety-critical components; a label saying “repair compound” does not mean it is approved for every repair.

How should the application area be prepared?

Surfaces usually need cleaning, degreasing and drying in accordance with product instructions. Observe setting and full curing times. Do not start the engine or load the joint until the manufacturer's specified properties have been achieved.

For other methods of joining materials, see automotive adhesives.