CRC Red RTV Gasket 85g

CRC Red RTV Gasket is a room temperature vulcanising (RTV) silicone gasket maker supplied as a red paste in an 85g tube. CRC's New Zealand product page describes it as a heavy-duty silicone for high-temperature applications, and lists general machinery and automotive gasketing.

It is an acetoxy-type cure: the SDS says it releases acetic acid on curing, with a vinegar odour, so use it with good ventilation. CRC says it is not to be used as a head gasket.

Where this product is used

• General machinery and automotive gasketing
• Valve rocker covers and timing chain covers
• Thermostat housings and water pump covers
• Transmission pans, side cover plates and differential covers
• Water outlets and inlets, intake manifolds and oil pan corner seals

Features

• Red paste RTV silicone gasket maker
• Forms any size or shape of gasket in minutes (CRC New Zealand)
• Suited to high-temperature, high-pressure applications (CRC New Zealand)
• Replaces most gaskets, including cut gasket, felt, cork, paper and rubber (CRC New Zealand)
• Remains flexible and durable; resists migration, cracking, shrinking and vibration (CRC New Zealand)
• No separate gasket sealer needed (CRC New Zealand)

Key specifications

Selecting the right option

For a cartridge-dispensed RTV with a bead-width nozzle see CRC RTV Silicone Select-A-Bead Sealant; the two products have different data sheets and their temperature figures should not be treated as equal. To remove old gasket material first see CRC Aerosol Gasket Stripper Safe On Aluminium, Steel & Brass 300g.

Using it

CRC has not published directions for this product in the documents we hold. Follow the directions on the pack and read the safety data sheet before use.

Use with good ventilation: the SDS says the product releases acetic acid on curing, which is a strong respiratory irritant, with the hazard mainly in poorly ventilated areas.

CRC New Zealand states it is not recommended for use on copper or brass, is not to be used as a head gasket and is not suitable for stove pipes or fireplaces.

Storage and handling

Store in a cool, dry, well ventilated area away from incompatible materials, heat and ignition sources. Avoid exposure to moisture and keep sealed when not in use. The SDS says to store as a Class C1 combustible liquid (AS1940).

Limits and safety

The Australian SDS (14 Feb 2018) states the product is not classified as hazardous under Safe Work Australia criteria and is not a dangerous good; it describes the product as low toxicity and an irritant. It is a Class C1 combustible with a flash point above 93 °C. Acetic acid released on curing is a strong respiratory irritant. Incompatible with oxidising agents (for example hypochlorites), acids (for example nitric acid) and alkalis (for example sodium hydroxide). Not to be used as a head gasket, on copper or brass, or on stove pipes or fireplaces (CRC New Zealand). Read the safety data sheet before use.

Frequently asked questions

What is the maximum temperature for CRC Red RTV Gasket?

CRC New Zealand lists an intermittent service temperature of up to 340 °C. We have found no continuous service temperature in CRC's documents.

Can I use CRC Red RTV Gasket as a head gasket?

No. CRC states it is not to be used as a head gasket, is not recommended on copper or brass, and is not suitable for stove pipes or fireplaces.

Does CRC Red RTV Gasket give off an odour while curing?

Yes. The SDS says it releases acetic acid on curing, with a vinegar odour. Acetic acid is a respiratory irritant, so use it with ventilation.

Is CRC Red RTV Gasket classified as hazardous?

The Australian SDS (14 Feb 2018) states it is not classified as hazardous under Safe Work Australia criteria and is not a dangerous good. It is a Class C1 combustible with a flash point above 93 °C.

Where can CRC Red RTV Gasket be used?

CRC New Zealand lists general machinery and automotive gasketing, including rocker covers, timing chain covers, thermostat housings, transmission pans, water pump covers, intake manifolds, oil pan corner seals and differential covers.

Related products

See also: CRC RTV Silicone Select-A-Bead Sealant, CRC Aerosol Gasket Stripper Safe On Aluminium, Steel & Brass 300g, CRC Maniseal Exhaust Cement Seal 142g, Loctite SI 5699 High-Performance RTV Silicone Gasket Maker Grey, Loctite 598 Black Maxx High Performance RTV Silicone Gasket Maker 95g.