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Plastics & Elastomers
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Plastics & Elastomers
by SpecialChem
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KRYNAC® XL 34.70

Technical Datasheet | Supplied by Arlanxeo
KRYNAC® XL 34.70 is a pre-crosslinked butadiene acrylonitrile copolymer by Arlanxeo. It is non-staining, stabilized, slow-curing, carboxylated and oil extended polymer. Offers excellent resistance to swelling in oils, fuels and greases. Shows exceptional low temperature flexibility, heat resistance, high processing safety and extreme resistance to abrasion & wear. It is suitable for processing by extrusion and not completely soluble in MEK. KRYNAC® XL 34.70 is used in hoses, seals, membranes, roll covers, coated fabrics, sheets and thermal insulation tubes for automotive, industrial equipment & machinery, shoe soles and flooring applications.
Product Type
NBR (Nitrile Butadiene Rubber)
Physical Form
Product Status

KRYNAC® XL 34.70 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Mooney Viscosity ML (1+4)
60 - 80 MU
(at 100°C without pre-treatment)
ISO 289
Acrylonitrile Content
32.5 - 35.5 wt %
( )
ISO 24698-1
Volatile matter
0.5 wt %
( )
ISO 248
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