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Engineering Plastics
Acetals: Delrin® - Celcon®
Acetals are available as a homopolymer (Delrin
by Du Pont) or a co-polymer (Celcon by Celanese). Both materials offer
excellent machining properties and are ideal for holding close tolerances.
The high compression strength and stiffness of acetal make it a good
material for high-load applications. Acetal is also available with additives
such as moly dry lubricants and Teflon® fibers. These reduce friction and
aid machinability.
Nylons
Nylon is available in several compounds and
co-polymers. The most commonly used nylons for industrial components are
Type 6 (cast) and Type 6/6 (extruded). Both materials exhibit excellent wear
resistance and tensile strength, with Type 6 offering slightly better
mechanical properties. Nylon generally absorbs more moisture than other
bearing materials and therefore may be dimensionally unstable in wet
applications requiring close tolerances. Nylon is available in oil or
molybdenum disulphide filled compounds which offer a lower coefficient of
friction for bearings and wear parts.
PTFE: Teflon®
Polytetrafluoroethylene (PTFE) provides
exceptional chemical, electrical, mechanical and thermal properties for many
applications. The most recognized source of PTFE resin is Teflon
manufactured by Du Pont. PTFE is capable of operating at temperatures up to
550ºF, making it a versatile high-temperature material. Glass fibers are
often added to improve the dimensional stability of PTFE under load.
UHMW-PE: Duro Glide®
UItra-high molecular weight polyethylene has the
highest impact and abrasion resistance of any thermoplastic. These
properties and its reasonable cost make UHMW a versatile material for many
applications where abrasion, impact, or chemical resistance is desired. The
low coefficient of friction and high-slip properties of UHMW make it ideal
as a wear liner for handling bulk commodities. UHMW can operate successfully
at temperatures as low as - 375ºF, making it excellent for cryogenic
applications.
Duro Lube®
Oil-filled UHMW polyethylene is ideally suited
for applications such as wear strips, slider plates and some bearing
surfaces where lubrication is desirable to lower the coefficient of
friction. All additives in Duro Glide (white) and Duro Lube meet FDA
requirements for direct food contact.
Contact:
Plastic Fabrication & CNC Machining
Customer Service at 800-237-7634, x1228 or
1-727-573-7676 x 1228
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