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Old 04-24-2002, 10:49 AM   #6
flatfloor
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Pan liners CPE & PVC

Chlorinated polyethelene (CPE) is a type of synthetic material, which is prepared from the substitution reaction of polyethelene and chlorine under the action of initiation. The product possesses good resistance to weather, aging and ozone, oil and most chemicals and has fire resistant properties. It is a good plastic modifier and is a special rubber with good comprehensive properties.

When referred to in this forum it is usually the material a shower pan is composed of.
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Polyvinyl chloride, (PVC), is the product of combining ethylene (derived from petroleum, natural gas or coal) and chlorine (derived from salt). The resulting compound, ethylene dichloride, (EDC) is catalyzed to form a gas called vinyl chloride monomer (VCM). Polymerization of the VCM by one of three processes, suspension, emulsion or bulk-polymerization, results in a fine-grained, white powder or resin, known as PVC or "vinyl" . In order to add unique physical characteristics to the vinyl, plasticizers, or phthalates, are added that may give the material such properties as flexibility, fire and impact resistance, and color. Processing of vinyl for end-use applications includes extruding (pipe and cable), injection molding (three-dimensional parts like valves), calendering (film and sheet goods), and dispersion molding (such as coatings for carpet backing and floor tiles). The fact that PVC is relatively inexpensive to manufacture and is adaptable to many applications accounts for the construction industry being the chief beneficiary of PVC production.
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Last edited by davem; 03-04-2003 at 09:15 AM.
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