Chemlok® 238 (NW) Adhesive | Product Series

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Chemlok® 238 (NW) Adhesive

Chemlok® 238 (NW) Adhesive

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 bonds compounds based on butyl and EPDM, as well as other rubber compounds.

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
Safety Warning

Full Product Description

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.

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.

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.

Related Documents

Compliance, Certifications & Safety
SDS-MSDS Safety Data Sheet: CHEMLOK 238 (NW)
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Products Trade Name
Chemlok 238 Chemlok 238 (NW) Adhesive

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