Looking for unusual plastic surface

by **radowney** on Wed May 08, 2002 5:57 pm

I’m not a plastics person, so I don’t know the proper terminology.

What I’m looking for is a type of plastic/vinyl that when touch or hit will leave a visible mark that will disappear after a couple of seconds. Might have to be made in multiple layers.

rad

by **Skip** on Wed May 08, 2002 6:45 pm

Rad,

I know there are plastic "thermometers" that show color change
with heat--even the touch of a finger----but I don't have a clue:o
as to a pressure "hit". Maybe some of the other Gurus on this forum
know which firms deal in this type of color/temp/pressure technology.
I know there is technology to evaluate stresses and strains using color,
but whether it is available in a plastic film, I know not.

Skip:)PVC and Other Resins Forum Moderator
[email protected]

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[This message has been edited by Skip (Edited: 05/08/02).]

by **radowney** on Wed May 08, 2002 9:01 pm

Skip,

Wouldn't want it affected by ambient temperature. And it would have to stand up to steady flow of hits.

Rad

by **Joe Golden Gate Solutions** on Thu May 09, 2002 8:13 am

Radowney,
Are looking for somthing like silly putty that has memory? There should be a foam that would work. Help me here guys. I don't do foam, yet.

Joe
<[email protected]>

by **Will Call** on Thu May 09, 2002 11:20 am

How about something on the order of stress balls. A thin urethane or rubber shell with a gel of some type in the center?
Bill

Moen, Incorporated
[email protected]

by **Al Hall** on Fri May 10, 2002 2:22 pm

I have those. Please don't hit them.

Al Hall
Toolmaking Moderator

"Most people don't plan to fail - they fail to plan."

by **Will Call** on Fri May 10, 2002 3:21 pm

Stay seated Al and you'll be ok.

Bill

Moderator- Product Design Forum

Moen, Incorporated
[email protected]

by **Skip** on Fri May 10, 2002 8:25 pm

Rad,

I recall that plastic parts can exhibit very colorful stress/strain
patterns when exposed to POLARIZED light. That may be a way to
furnish you what you need. I sure do not know who can provide this
technology, but I know that it's out there!!:)

Skip:)PVC and Other Resins Forum Moderator
[email protected]

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"Keep Your Powder (& Resin!)Dry!!"

by **radowney** on Sat May 11, 2002 9:20 am

Looked at this sometime ago. However the pressure
applied to film leaves the color hue intact.
I want to be able to see where I hit the surface
then have the mark cleared while try to hit the same spot again, so it has to clear within seconds.

rad