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Fluorinated ethylene propylene (FEP). can be described as a fluoropolymer resin having most of the excellent physical. chemical and electrical properties of PTFE but can be processed using conventional thermoplastics processing equipment.

FEP heat shrink roll covers are ideal where protection from adverse environments are required. Its simplicity of installation reduces maintenance and down time costs. It also provides excellent corrosion resistance, protection from physical abuse, shock and abrasion resistance, excellent electrical properties, and high purity and transparency. Shrinkage is approximately 20%. The shrinkage temperature is 350° F. The grip force is 5-8 psi and the surface finish is 40 micro inches. The continuous temperature for Teflon FEP is 400° F. However, under high loadings, this drops substantially. For roll cover applications where higher pressure is involved, the temperature should not exceed 200°F. In those higher pressure and heat applications, an etched ID tube should be used with adhesive.

To install FEP roll covers you must first select the nearest diameter larger than the desired size. Choose lengths based on approximate 3% shrinkage in length. For roll covers, also allow an additional 2”-3” in length for end cuffs. Scissors or a sharp utility knife can be used to cut tubing. To shrink tubing onto a part, apply 250-400° F, depending on application. This can be done by using hot air oven or a commercial hot air gun. For roll covers, it is recommended two hot air guns, on either side of the roller, be used. The roller and the tube should be uniformly rotated while applying heat.

Types of FEP

At a Glance

Generic Name
Fluorinated Ethylene Propylene

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