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Inherently flexible, tough and clear, Elvax® resins also can be molded or extruded into soft plastic goods including hoses and tubes, formulated into hot melt adhesives, or used in plastics compounding, wire and cable insulation, and solar cell encapsulants.

Technical Reference Materials

DuPont™ Elvax® EVA products are backed by DuPont experts with years of experience fitting solutions to customer needs. Read more about grade selection, processing, and end-use considerations in the following technical reference materials.

Material Safety Data Sheets (MSDS)

 

 
Elvax® for Adhesives, Sealants and Wax Blends

Technical guide discusses blends with petroleum waxes, tackifiers; hot melt adhesives; solvent-applied adhesives; flexibilizing; paraffin waxes; temperature resistance; VA levels; terpolymers; Elvax® grade selection chart; physical properties.

 

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Elvax® Resins for Molding, Compounding, and Extrusion

Elvax® resins used alone or to improve the performance other resins or elastomers. Guide includes: Typical Applications; Physical Properties; Processing; Cross-linking; Injection Molding; Extrusion; Compounding, Masterbatches; Foaming; FDA status.

 

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Elvax® Wire & Cable Product Guide

Grade selection and properties review for Elvax® wire and cable applications including type GXL automotive primary wire, motor lead wire, heat resistant jackets for auto ignition cables, heat resistant jackets for low-smoke cables, semicon insulation shields.

 

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Elvax® Resins for Hose and Tubing

Selection and processing guide for Elvax® use in flexible hose and tubing; flexibility, resilience, toughness, broad temperature range, resistance to flex fatigue and environmental stress cracking; typical applications; FDA status; grades available; processing on plastics or rubber equipment; compounding, fillers, colorants, color concentrates; physical properties tables.

 

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Safety in Handling and Use

Elvax® resins are supplied as small, free flowing pellets. Contained at room temperature, they are not classified as hazardous, and are quite inert, toxicologically. Safety information relates to thermal processing and includes: chemical composition; processing temperatures; avoiding thermal degradation or fumes; decomposition products; ventilation; fire extinguishers; equipment grounding; cross-linking reactions; FDA compliance; thermal burns and treatment; spills clean-up; and scrap disposal.

 

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Suggested Hopper Car Unloading Guidelines for Elvax® Resins

Step-by-step instructions for unloading Elvax® resins from railroad hopper cars.

 

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Injection Molding Guide for Elvax®

Guide includes: resin handling and safety; processing temperatures and equipment; suggested screw dimensions; purging; injection pressures; fill speeds; cycle times; using regrind; lubricants; colorants; mold design; flow distance; gates and runners; shrinkage rates; troubleshooting.

 

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Industrial Extrusion of Elvax® Resins

Guide includes: safety; resin selection, extrusion processes, pre-extrusion checklist, resin preparation, formulations, compounds,  dry blending, regrind, moisture, drying, rheology, screw design and cooling, adaptors and dies, streamlining, heating, forming and cooling, water colling ring, internal air pressure, product packing, cutting/trimming, melt temperatures, startup, shutdown, purge, cleaning, troubleshooting.

 

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Thermal Properties of Elvax® Measured by Differential Scanning Calorimeter (DSC)

Report on the melting and freezing points of various Elvax® ethylene vinyl acetate (EVA) polymers as measured using a DSC. As the percent vinyl acetate (VA) increases, the melting and freezing points of the EVA copolymer decrease. When used in hot melt adhesive formulations, the melting point predicts high temperature performance and the freezing point predicts set speed.

 

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Elvax® and Wax: A Good Fit

Discusses the use of Elvax® polymers in combination with hydrocarbon waxes. Each component brings a certain set of properties that complement the other component. By knowing the melt point of the wax and the freezing point of the EVA copolymer, one can predict the compatibility of the blend.

 

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