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Anonymous Poster #1

Coated Nuts & Bolts - Repair with Polyurethane Paint?

09/18/2012 5:37 AM

PTFE/Fluoropolymer coated nuts&bolts coating damaged due to handling can we repair with polyurethane paint

procedure recomended touch-up with xylon1070 or over coated with top coat of surrounding coating system at final stage

Thanks

charan
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Joshi
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Location: India
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#1

Re: coated nuts

09/18/2012 7:06 AM

If a few are damaged, won't it be prudent to replace them?

Since you have a "procedure recommended" what is the problem. Just do it.
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charan singh
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#2
In reply to #1

Re: coated nuts

09/18/2012 7:25 AM

Thanks

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Anonymous Poster #2
#3

Re: Coated Nuts & Bolts - Repair with Polyurethane Paint?

09/18/2012 8:02 AM

It may be worthwhile to investigate your fastener supplier...

It hase been my experience that normal handling should not damage a quality XYLAN coating, supplied from a US source.

But you take your chances with those low-cost Chinese fastener suppliers.
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lyn
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#4

Re: Coated Nuts & Bolts - Repair with Polyurethane Paint?

09/18/2012 7:20 PM

Based on what little detail you gave, no one can help you.

Is "polyurethane paint" the, "top coat of surrounding coating system at final stage"?

What is the operating environment?

Who is the customer?

Who wrote the "procedure"?

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JPool
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#5

Re: Coated Nuts & Bolts - Repair with Polyurethane Paint?

09/19/2012 7:49 AM

If you "repair" with polyurthane, then you will lose the properties of the PTFE (teflon). PTFE coatings are performance coatings used for dry film lubrication. We apply PTFE coatings and they are thermally cured (400 F) Epoxy based coatings, very tuff, they do not damage with normal handling. Pointess to "repair" with anything other then PTFE coatings.

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