Cray Valley Wingtack® STS Aromatically Modified C-5 Hydrocarbon Resin

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Cray Valley Wingtack® STS Aromatically Modified C-5 Hydrocarbon Resin
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Description: Wingtack® STS is a light colored, low odor aromatically modified resin with increased compatibility in butadiene-containing elastomers yielding increased tack and excellent peel and cohesive strength properties. Product Highlights / Performance Properties: Designed to be compatible with more-polar elastomers, those containing butadiene as a primary component, as well as high VA EVA polymers. SBC, SBS, SIBS, SIS compatibility Suggested Applications: Hot melt adhesives (HMA) Pressure sensitive adhesives (PSA) Sealants & Caulks Plastics & Rubber Roofing Information provided by Cray Valley
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Physical Properties	Original Value	Comments

Specific Gravity	0.970 g/cc	ASTM D891
Molecular Weight	1000 g/mol	Mn
	1600 g/mol	Mw
Ash	<= 0.10 %

Thermal Properties	Original Value	Comments
Softening Point	94.0 °C	E-950
Glass Transition Temp, Tg	44.0 °C	midpoint

Optical Properties	Original Value	Comments
Gardner Color Number	2.9	in 50% toluene; E-803

Descriptive Properties
Appearance	Light yellow
Clarity	0.961	E-803a
Cloud Point	<0°C	EVA/Resin 1:1; EVA (25% VA, 400 MFI)
	<10°C	EVA/Resin 1:1; EVA (18% VA, 500 MFI)
	79°C	EVA/Resin 1:1; EVA (28% VA, 400 MFI)

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PCRAYV041 / 316194

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