Chemlok 238 (NW) Adhesive
Covercoat Adhesive for Non-Polar Elastomers
Chemlok 238 (NW) adhesive is a covercoat adhesive used to bond a variety of non-polar elastomers to themselves or to Chemlok 205 primed metals and other rigid substrates. It is composed of a mixture of polymers, organic compounds and mineral fillers dissolved or dispersed in an organic solvent system.
Technical Specifications
- Color: Black Liquid
- Dynamic Viscosity: 150 to 800 cP @ 77 F (25 C)
- Density: 881.52 to 928.5 kg/m3, 7.35 to 7.75 lb/gal
- Percent Solids by Weight: 12 to 15
- Flash Point: 30 C, 86 F
- Solvent: Xylene
Features and Benefits
- Versatile - bonds non-polar rubber compounds based on butyl and EPDM; flexible enough to bond uncured to cured systems, as well as cured elastomers to cured elastomers with similiar compositions.
- Easy to Apply - applies easily by brush, dip, roll coat or spray methods.
Typical Applications
- Bonding various non-polar elastomers.
- Adhering elastomers to metal or other rigid substrates.
Elastomers
- Natural rubber (NR)
- Polyisoprene (IR)
- Styrene-butadiene (SBR)
- Polybutadiene (BR)
- Polychloroprene (CR)
- Nitrile (NBR)
- Butyl (IIR)
- Chlorosulfonated Polyethylene (CSM)
- EPDM Polymers
Shelf Life/Storage
Shelf life is one year from date of shipment when stored by the recipient in a well ventilated area at 21-27 C (70-80 F) in original, unopened container.To help prevent the formation of a gel-like consistency, store Chemlok 238 (NW) adhesive above 21 C (70 F). If a gel-like consistency does develop, heat adhesive to temperature above 38 C (100 F) and mix the adhesive with a high speed agitator until it returns to a homogeneous liquid.