What is hylomar used for?

Hylomar RTV silicone sealants are used to seal engines, gearboxes and transmissions for leading vehicle manufacturers around the globe with our amine curing products being particularly favoured.

Is hylomar waterproof?

It acts as a tough, waterproof and pressure resistant seal for a variety of applications including crankcases, valve and timing chain covers, radiators, gearboxes, sunroofs, light clusters and more.

Does hylomar Harden?

Hylomar Advanced Formulation HV is a solvent free, non-setting and non hardening, high viscosity non-slumping thixotropic gel which is ideal for sealing joints. It can also be used as a gasket dressing and flange sealant. It will enhance the sealing capability of all types of gaskets and flanges.

How do I apply to hylomar?

Hylomar Universal Blue should be applied to clean dry surfaces. Apply a thin film or bead to one or both surfaces. Once applied, sufficient time should be allowed for the solvent to evaporate. Unlimited assembly time allows precise alignment of joints to be made.

Can you use hylomar on head gaskets?

Generally speaking, almost all aftermarket head gaskets (both composite and MLS) are designed to be used without additional chemical sealants (i.e. hylomar). The use of an additional chemical sealant on gaskets not designed for it will actually do more harm than good and affect the gaskets ability to seal.

How long does hylomar take to dry?

30 minutes
the ROCOL HYLOMAR JOINTING Compound has been allowed to dry for a minimum of 30 minutes at an ambient temperature of 20°C to 25°C. Drying time will be lengthened if the ambient temperature is lower. The storage temperature of ROCOL HYLOMAR JOINTING Compound should be controlled between +1°C and +40°C.

Can you use blue hylomar on head gaskets?

Never use any sealant on the head gasket.

Is hylomar anaerobic?

Hylomar Gasket 3400 is a modified anaerobic curing, flexible sealant designed to become a Formed in Place (FIP) Gasket when cured. The cured compound has good temperature resistance and high resistance to fretting.