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DuPont Performance Polymers Neoprene GNA Polychloroprene

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) , Chlorosulfonated Polyethylene Rubber
Manufacturer DuPont Performance Polymers (Former DuPont Elastomers)
Trade Name Neoprene
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF DuPont Performance Polymers Neoprene GNA Polychloroprene.pdf
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Material Notes:
DuPont™ Neoprene GNA is a sulfur-modified polychloroprene stabilized with a thiuram disulfide and a staining antioxidant. It should not be used in applications where resistance to staining or discoloration of finishes is necessary. Neoprene GNA breaks down, or softens, under the mechanical shear imposed during mixing to produce smooth-processing compounds. It does not break down quite as rapidly as Neoprene GRT, so its compounds are less tacky and have somewhat less building tack than compounds of other G types. Compounds of Neoprene GNA cured with metal oxides alone have excellent processing safety, yet cure rapidly. Although not required, cure accelerators can be used and are advantageous for some applications. Properly compounded vulcanizates of Neoprene GNA have high resilience, tear strength, and flex cracking resistance.
Physical Properties Metric English Comments
Specific Gravity 1.23 g/cc
1.23 g/cc
ASTM D7920-66
Mooney Viscosity 42 - 59

@Temperature 100 °C
42 - 59

@Temperature 212 °F
ML (1+10); ASTM D1646-81
Descriptive Properties Value Comments
Color Amber
Crystallization Rate Medium
Form Chips
Odor Mild, characteristic
Storage Stability Good
May undergo viscosity change. Store under cool conditions.
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