Summer 1998


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Craftech molds PVC and CPVC parts.
PVC and CPVC are two widely used compounds that are naturally flame and chemical resistant. They are inert to a wide variety of acid and bases, even at elevated temperatures. However, both are attacked by some organic chemicals such as acetone, toluene and methylene chloride. PVC is the most widely used of the two, but 
its use should be limited to applications that require an operating temperature of under 140° F. CPVC, made by chlorinating PVC, is the most chemically resistant of the two. It can be used safely up to a continuous operating temperature of 190° F. As they are both self-extinguishing, both PVC and CPVC are naturally UL94VO. They are good electrical insulators. PVC is used more widely for electrical insulation and conduit sheathing that any other substance.
Although, once hard to mold, new compounds have been introduced in recent years that facilitate injection molding. The one restriction to designing with CPVC is that it should not be used if the desired parts have thick sections, as it does not mold well under these circumstances.

Captive panel screws in advanced plastic materials.
Typically used in the computer, telecommunications and electronics industries, captive screws fasten computer panels, removable power supplies, and other components to a chassis. Captive screws can prevent access hardware from being dropped, lost or misplaced during assembly, operation and servicing.

Craftech has been manufacturing custom captive panel screws for our customers for many years. Due to increased requests, we now offer captive panel screws in over 10 head styles including knurled, pan, fillister, round, socket, flat, hex and more with either a shaft or pointed end.

Available advanced plastic materials include Ultem, Polypropylene, PEEK, Delrin, PVC, PVDF, glass-filled Nylon and Vespel.

To view specifications and drawings of our complete line of captive panel screws, 
click here.



For additional information contact:

Craftech® Industries, Inc.
8 Dock Street, P.O. Box 636
Hudson, New York 12534 USA
Corporate Office:
Phone (800) 833-5130 or (518) 828-5001 Fax (518) 828-9468
Electronic mail: info@craftechind.com