Thin Polyurethane Foam 0.015" Search

[supercub]

I have looked all around the internet for 0.015" thickness polyurethane foam. The thinnest I could find was 1mm. The manufactureres that I have spoken to do not have the process capability to skive that thin. This is for a medical product and I have seen similar products that are thin. I need sheets about 18" X 36". Does anyone have any ideas? One supplier could CNC mill a thicker sheet down but that would drive the price significantly.

 

[Compositepro]

0.015" is smaller than the bubbles in the foam. It would probably tear simply supporting its own weight. What are you trying to accomplish. It seems that a fibrous mat would make a lot more sense.

 

[dik]

Can you just use polyurethane sill gasket and let it 'crush'?

Dik

 

[patprimmer]

I think the bubble size can be controlled in manufacture of the foam.

The ways to get it thin are to stretch it in two directions or to extrude it thin, possibly by making blown film.

As a rule of thumb, plastic is classified as sheet if it is over 1mm thick ans film if less than one mm, but that is arbiary and a bit like a river vs a creek.

Try looking for film rather than sheet manufacturers in your next search.

Also contact Bayer Materials Science and BASF to see if they can assist.


Regards
Pat
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[supercub]

The pore sizes vary. Some of the pores are bigger than the foam thckness, so there are basically holes in those places. I have seen this foam placed between sheet metal parts as a barrier to adhesion.

 

[patprimmer]

The pore size can be controlled within reasonably tight limits. For thin film, you use very fine foam.

Regards
Pat
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[supercub]

I have to match it up from a sample. It has the porosity for fluid transfer.