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VECTOR® 2518

Category:	SBS , Styrene Butadiene Styrene Block Copolymer
Manufacturer:	Dexco Polymers LP
Trademark:	VECTOR®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	FG7E44_VECTOR-2518.pdf
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VECTOR 2518
Styrene-Butadiene-Styrene (SBS) Block Copolymer

SBS(1) triblock copolymer.

Contains <1% diblock copolymer.

Medium styrene, high modulus copolymer.

Outstanding thermal stability.

Supplied as a porous pellet, dusted with talc.

VECTOR styrenic block copolymers find use under certain regulations as articles or as ingredients in articles intended for food contact or medical applications. Please contact your Dexco Polymers agent for a detailed letter of certification or further information.

VECTOR 2518 styrene-butadiene-styrene block copolymer is produced via proprietary sequential anionic polymerization technology from Dexco Polymers LP, a Dow/ExxonMobil Venture.

It has excellent thermoplastic elastomer properties and outstanding physical strength. It is designed for use as an impact/toughness modifier in blends with styrenics and in elastomeric compounds. It is also used as an asphalt modifier to lower temperature susceptibility and in roofing compounds.

General Information
Features	Copolymer Food Contact Acceptable Good Impact Resistance Good Thermal Stability Good Toughness High Strength Porous
Uses	Asphalt Modification Compounding Plastics Modification
Forms	Pellets
Processing Method	Compounding

Physical	Nominal Value	Unit	Test Method
Specific Gravity	0.938	g/cm³	ASTM D792
Melt Mass-Flow Rate (MFR) (200°C/10.0 kg)	0.60	g/10 min	ASTM D1238
Solution Viscosity	1200	mPa·s	ASTM D2196
Ash Content	0.7	wt%	ASTM D1416
Styrene Content	31.0	wt%	Internal Method

Additional Information	Nominal Value	Unit	Test Method
Diblock Content - SB	< 1.0	wt%	Internal Method
Volatiles	0.3	wt%	Internal Method

Hardness	Nominal Value	Unit	Test Method
Durometer Hardness (Shore A, 1 sec)	78		ASTM D2240

Elastomers	Nominal Value	Unit	Test Method
Tensile Stress ¹(300% Strain, 25°C)	4.14	MPa	ASTM D412
Tensile Strength ²(Yield, 25°C)	30.3	MPa	ASTM D412
Tensile Elongation ³(Break, 25°C)	1000	%	ASTM D412

Note Message
1 .	25 Wt. % in toluene
2 .	25 Wt. % in toluene
3 .	25 Wt. % in toluene

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