CRC RTV Silicone Select-A-Bead Sealant, Black 184g

CRC RTV Silicone Select-A-Bead is a room temperature vulcanising (RTV) silicone sealant, supplied in a pressurised 184g cartridge for sealing, bonding, protection and waterproofing. The data sheet lists a silicone polymer with a neutral (oxime) cure. It is available here in black, grey and red.

No caulking gun is needed. The Select-a-Bead nozzle controls the bead width, and a self-sealing plug lets you pull it out and re-use the cartridge. CRC's data sheet says it is not recommended for continuous immersion in gasoline or for head gasketing operations.

Where this product is used

• Sealing, bonding, protection and waterproofing in HVAC, electrical, construction and metal working
• Filling gaps between mating parts
• Gearboxes, pumps and motors
• General gasket sealing

Features

• Silicone polymer with a neutral (oxime) cure; cures at room temperature
• No caulking gun required
• Select-a-Bead nozzle controls the bead width
• Dispenses a uniform bead from a double piston pressurised system
• Self-sealing plug: pull out to re-use
• Pressurised package keeps the silicone from drying out in the cartridge (CRC)

Key specifications

Available sizes

Selecting the right option

All three colours use the same safety data sheet. For an engine-specific gasket maker see CRC Red RTV Gasket 85g, and to remove old gasket material first see CRC Aerosol Gasket Stripper Safe On Aluminium, Steel & Brass 300g. CRC's data sheet says this product is not for head gasketing operations.

Using it

CRC's directions: surfaces should be clean and dry. CRC says it suits clean, unpainted surfaces. Clean mechanically or with a solvent, without soap or detergent, and use alcohol on glass. Any primer must be dry.

Pull the tab, adjust the cap to the min/max arrow for the bead width, push the nozzle to the surface and press the handle. Tool within 5 minutes and wipe off excess with a dry paper towel.

If no gasket is used, apply to one part and allow a skin to form before assembling. Remove masking tape within 1 hour. To re-seal, wipe the nozzle and replace the cap.

Storage and handling

CRC's directions: keep locked up, store in a cool, dry, protected area and use with adequate ventilation.

Limits and safety

Warning. Pressurised container: may burst if heated (H229). UN 1950, Aerosols, Class 2.2. The SDS does not classify the product as a health or environmental hazard. CRC's data sheet says it is not recommended for continuous immersion in gasoline or for head gasketing operations. Read the safety data sheet before use.

Frequently asked questions

What curing system does CRC RTV Silicone Select-A-Bead use?

CRC's data sheet lists the curing method as neutral (oxime), and says it cures at room temperature.

How fast does CRC RTV Silicone Select-A-Bead cure?

It skins in approximately 10 minutes, dries to the touch in one hour and fully cures in 24 hours. Optimum strength is reached in 7 days, and tack free time is 20 minutes.

Do I need a caulking gun for Select-A-Bead?

No. CRC's data sheet says no caulking gun is required; the Select-a-Bead nozzle controls the bead width.

Can CRC RTV Silicone Select-A-Bead be used for head gaskets or fuel immersion?

No. CRC's data sheet says it is not recommended for continuous immersion in gasoline or for head gasketing operations.

What temperature range does Select-A-Bead handle?

CRC's data sheets and product pages give different temperature ranges for the black, grey and red products, so this page does not quote one. Please check with us for the colour you need.

Is CRC RTV Silicone Select-A-Bead hazardous?

The SDS carries the signal word Warning for the pressurised container, which may burst if heated (H229). It is UN 1950, Class 2.2, and is not classified as a health or environmental hazard.

Related products

See also: CRC Red RTV Gasket 85g, CRC Aerosol Gasket Stripper Safe On Aluminium, Steel & Brass 300g, CRC Maniseal Exhaust Cement Seal 142g, Loctite 598 Black Maxx High Performance RTV Silicone Gasket Maker 95g, Loctite SI 5699 High-Performance RTV Silicone Gasket Maker Grey.