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Material Notes:
Elvax resins offer a unique combination of processing and performance characteristics. They provide outstanding toughness and resilience and maintain flexibility over a broad temperature range without the need for plasticizers.Elvax resins can be used alone or to improve the flexibility, resilience and toughness of other resins. Depending on the demands of the particular application, they can be pigmented, foamed, filled, and/or crosslinked. In addition to their performance advantages, Elvax resins are processed easily using conventional thermoplastic processingues, i.e., injection molding, extrusion and foaming, as well as rubber processingues, i.e., Banbury mixing, foam extrusion and molding.Test specimens except for tensile impact where prepared by compression molding (ASTM D1928, procedure C). Tensile impact samples were injection molded.Processing Information:Molding and ExtrudingModified and unmodified Elvax resins can be processed in conventional thermoplastic and rubber processing e The temperature profile will vary with machine type, size and screw design as well as with part size, thickness or confiation.CompoundingElvax resins are compatible with a variety of other resins and elastomers including polyethylene, polypropylene and styrene-butadiene rubber. Clays and other inorganic fillers can be added to improve abrasion resistance and lower cost.Foaming AgentsElvax resins are readily foamed using chemical or physical blowing agents.Crosslinking AgentsPeroxides such as "Di-Cup"† and "Vul-Cup"† dicumyl peroxide can be used to crosslink or vulcanize Elvax resins.(†Hercules Inc.) Information provided by DuPont.
Physical PropertiesMetricEnglishCommentsDensity0.933 g/cc0.0337 lb/in³ASTM D792Vinyl Acetate Content12 %12 %TGAMelt Index of Compound2.5 g/10 min2.5 g/10 minASTM D1238Mechanical PropertiesMetricEnglishCommentsHardness, Shore A9595ASTM D2240Hardness, Shore D4444ASTM D2240Tensile Strength, Ultimate18.0 MPa2610 psiType IV, crosshead speed 2 in/min; ASTM D6388.30 MPa
@Temperature 49.0 °C
@Temperature 120 °F
32.0 MPa
@Temperature -20.0 °C
@Temperature -4.00 °F
500 %
@Temperature -20.0 °C
@Temperature -4.00 °F
800 %
@Temperature 49.0 °C
@Temperature 120 °F
0.207 GPa
@Temperature -20.0 °C
@Temperature -4.00 °F
Flexural Modulus0.0700 GPa10.2 ksiASTM D790
0.0310 GPa
@Temperature 49.0 °C
@Temperature 120 °F
0.317 GPa
@Temperature -20.0 °C
@Temperature -4.00 °F
207.0 MPa30020 psi
Tensile Impact Strength450 kJ/m²214 ft-lb/in²At -20°C; ASTM D1822
505 kJ/m²240 ft-lb/in²At 23°C; ASTM D1822Compression Set39 %39 %Method B, 10 days at 25°C; ASTM D395
86 %
@Temperature 70.0 °C
@Temperature 158 °F
Descriptive PropertiesValueCommentsCycle time0.5-2 minutesMolding, e and part design dependentVinyl Acetate Content12 wt.%
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