Polychloroprene rubber

CAS No.

9010-98-4

Synonyms

CR; Chloroprene rubber; Poly(2-chloro-1,3-butadiene); also listed as Chloroprene Rubber (CR)

Molecular formula

Not applicable — polymeric or multi-component material

Molecular weight

Not specified in the supplied record.

Grade

Adhesive grade

Packaging

Sealed PE bag / PE-lined kraft paper bag
SKU FM-229 Category

Chemical Product Description & Applications

Chloroprene rubber is a synthetic elastomer whose selected adhesive grades combine solvent solubility with crystallization-driven strength development. After a formulated adhesive is applied, solvent loss forms an elastomeric film and crystallization helps build early bond strength. The rubber backbone supplies flexibility and resilience to the bonded layer.

The selected dry rubber is a fast-crystallizing adhesive grade rather than a general molding compound or aqueous latex. It is dissolved and formulated with suitable resins, stabilizers and other ingredients. Contact adhesives use the tack and cohesive strength of the deposited films to join prepared surfaces. The balance of crystallization, resin compatibility and formulation determines open time, initial grab and resistance to movement after bonding.

Typical Applications

  • Footwear contact adhesives: Used as the elastomeric binder in suitable adhesives for joining sole, upper and related footwear components.
  • Decorative-laminate bonding: Used in formulated contact cements for bonding compatible laminates to wood-based or other appropriate substrates.
  • Industrial assembly adhesives: Used in rubber-based adhesive formulations for compatible rubber, leather, foam and other flexible-material assemblies.

Specifications

Parameter Specification Test Method
Appearance Off-white to cream chips Visual inspection
Identification Consistent with authenticated reference FTIR fingerprint comparison
Mooney viscosity ML(1+4), 100 C 40-60 MU Mooney viscometer
Volatile matter ≤1.0% w/w Gravimetric drying
Ash ≤1.0% w/w Gravimetric ignition residue
Toluene-insoluble gel ≤10.0% w/w Solvent extraction and gravimetry

Specifications describe the standard grade. Tolerance, test method and documentation package are confirmed per order.

Documents & Handling

Packaging

Sealed PE bag / PE-lined kraft paper bag

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Certificate of Analysis

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TDS

Technical Data Sheet

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SDS

Safety Data Sheet

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