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Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Need No Mar Coating for Steel
April 15, 2013
Q. Hello,
I am currently using a closed cell foam to protect a portable data tablet from a steel clamp plate. The problem is that, naturally over time, the pad flattens reducing clamping effectiveness. Clamp is approximately 5 In. by 2 In.
I am looking for a polymer (?) coating with the following specs:
Low cost
Durable
Minimal compression set under 7 Lbf clamping load
Black / Gray / Brown? Color
No mar on plastics
Thanks very much for your help everyone!
I really appreciate it.
- Eden Prairie, Minnesota, USA
A. Jim,
That's a pretty tall hill to climb but I suppose you could try a sample piece with several coats of a spray-on high solids mixture of polyurethane and acrylic. The mixture would constitute a vinyl coating. Good luck.
Blake Kneedler
Feather Hollow Eng. - Stockton, California
July 13, 2013
A. Perhaps hard silicone will do, have you tried it?
Guillermo (Bill) Marrufo, Mexico
Monterrey, NL, Mexico
Guys,
Thanks very much for your suggestions.
I really appreciate it!
- Eden Prairie, Minnesota, USA
A. If your surface is flat, you might look into using a thick UHMW E tape. It is really tough. By going to the source of tape, or a re-slitter, you can get it in nearly any width.
James Watts- Navarre, Florida
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