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'Flexible' Hardcoat?

'Flexible' Hardcoat?

'Flexible' Hardcoat?

(OP)
A customer of ours had an aluminum plate hardcoated by a (now unknown) vendor a few years back, and said that it has held up better than anything else they've ever seen.  This plate is used in the transfer of a product onto a stainless steel shelf.  It tends to get beat around and scratched quite a bit.  They say that the coating flexes with the part and doesn't crack.  I don't know how to quantify the flex of the piece, but it is not a great amount.  I'm looking to make a similar piece for them and I'd like to use this same coating.  Does anyone have any idea what it is?
All suggestions appreciated!

RE: 'Flexible' Hardcoat?

Look at a hard-anodize, this is a corrosion of the aluminum substrate so it should flex like the aluminum.

Otherwise ee have had good experience flexing with Nyflon (teflon nickle plating) but I think this only works for steel...

RE: 'Flexible' Hardcoat?

As alexit said, hardcoat anodizing is the appropriate process for improving the hardness and wear resistance of aluminum surfaces.  This is a thicker (35-50 micrometers) version of the cosmetic anodic coatings used on many aluminum applications.  Visit the Metalast website for more information:

http://www.metalast.com/technology/research_summary.html

RE: 'Flexible' Hardcoat?

(OP)
I had a gentleman in the business have a look at the parts with the coating in question.  As you two have said, it was indeed a teflon Hardcoat.  I had suggested this to the customer originally, but I was assured that it was something other than hardcoat.  My knowledge of coatings is limited so I thought that I may well be wrong in assuming it to be teflon hardcoat.
Thanks for the quick responses!

RE: 'Flexible' Hardcoat?

For future reference, there are a number of rigid polyurethanes / polyureas that provide good wear resistance.  I have used Huntsman's RP 6444 for a number of applications.  They claim that it is used as a coating on ore carriers or something similar.

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