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Dynasol Solprene® 4321 Thermoplastic Rubber (SBS)

Category Polymer , Thermoplastic , Elastomer, TPE , Styrenic TPE
Manufacturer Dynasol
Trade Name Solprene®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Dynasol Solprene® 4321 Thermoplastic Rubber (SBS).pdf
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Material Notes:
Solprene 4321 is a linear block copolymer of styrene and butadiene, with 32% styrene content, most of it forming polystyrene block, which gives the polymer a thermoplastic behavior. It has a non-staining antioxidant and also available version TNPP-BHT free antioxidant system; FDA approved for use in food contact applications and is essentially gel free with a very clear color. It is presented as free flowing porous crumb making easy its handling and dissolutionUses: Solprene 4321 is used as compounding ingredient for adhesives. The product is an excellent modifier for asphalt applications including self adhesive roofing membrane and sealants. Also is used in thermoplastic injected shoe soles formulations. Main Applications: RoofingFootwearPolymer ModificationAdhesivesInformation provided by Dynasol.
Physical Properties Metric English Comments
Volatiles <= 0.75 %
<= 0.75 %
ASTM D5668
Viscosity Measure 6.0 cSt
6.0 cSt
5.23% Toluene solution; NM-300-11
Melt Flow 11 g/10 min

@Load 5.00 kg,
Temperature 200 °C
11 g/10 min

@Load 11.0 lb,
Temperature 392 °F
ASTM D1238
Mechanical Properties Metric English Comments
Hardness, Shore A 71
71
ASTM D2240
Tensile Strength 3.50 MPa
508 psi
ASTM D412
Elongation at Break 1250 %
1250 %
ASTM D412
Chemical Properties Metric English Comments
Styrene Content 31 %
31 %
Block; NM 202-07
32 %
32 %
on polymer; ASTM D5775
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