Previous in Forum: Flooded AHU   Next in Forum: Drilling Through Welding Joint
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
5 comments
Rate Comments: Nested
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
Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Joshi
Guru

Join Date: Oct 2007
Location: India
Posts: 1246
Good Answers: 34
#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.
Reply
charan singh
Active Contributor

Join Date: Mar 2011
Location: Saudi Arabia
Posts: 10
#2
In reply to #1

Re: coated nuts

09/18/2012 7:25 AM

Thanks

__________________
 No Pain No Gain
Reply
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.
Reply
lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#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"?
Reply Score 1 for Good Answer
No more "Almost" Good Answers.
3
JPool
Guru
Engineering Fields - Mechanical Engineering - New Member Fans of Old Computers - TRS-80 - New Member Popular Science - Weaponology - New Member Safety - Hazmat - New Member Hobbies - Fishing - Fish On! United States - Member - New Member

Join Date: Apr 2012
Location: Detroit MI, USA
Posts: 2496
Good Answers: 271
#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.

__________________
 How we deal with death is at least as important as how we deal with life. --CAPTAIN KIRK, Star Trek II: The Wrath of Khan
Reply Good Answer (Score 3)
No more Good Answers. Go to first "Almost" Good Answer
Reply to Forum Thread
Have a Different Question?
5 comments

Good Answers:

These comments received enough positive votes to make them "good answers".

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); charan singh (1); Joshi (1); JPool (1); lyn (1)

Previous in Forum: Flooded AHU   Next in Forum: Drilling Through Welding Joint

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Mechanical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (60 right now)
Show Members
Advertisement