Previous in Forum: Looking for Information/Materials Sources for Moulding Rubber in a Small Shop   Next in Forum: Looking for information/material sources for making polyurethane foam
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
4 comments
Rate Comments: Nested
rrichard
Active Contributor

Join Date: Feb 2007
Location: Marlboro, MA 01752
Posts: 12

Vapor or Gas Problem

02/07/2007 8:55 AM

We have gas or vapors coming thru dip brazing or welding in a tank. Can someone tell me a paint, finish or sealent that would eliminate the problem?

__________________
 Ray Richard Operations/Sales
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#1

Re: Vapor or Gas Problem

02/07/2007 11:21 AM

Motor vehicle underbody seal is loaded with bitumen...

Roof repair mastic can be used to cure leaks in wooden boats below the waterline and without lifting the boat from the water...

What sort of gas at what temperature and pressure?

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
rrichard
Active Contributor

Join Date: Feb 2007
Location: Marlboro, MA 01752
Posts: 12
#2
In reply to #1

Re: Vapor or Gas Problem

02/08/2007 8:29 AM

The entrepreneur won't give me the info "confidential" but it is a type of antifreeze used to cool down electronics.

__________________
 Ray Richard Operations/Sales
Register to Reply
Anonymous Poster
#3

Re: Vapor or Gas Problem

02/09/2007 7:01 AM

You can get a liquid sealant used to seal fuel tanks from the inside. It works with petrol, if the coolant is glycol or ethanol based it should be ok with that as well. We cool electronics down to -40°C & have no leak problems using soldered copper heat exchangers.
Register to Reply
rrichard
Active Contributor

Join Date: Feb 2007
Location: Marlboro, MA 01752
Posts: 12
#4
In reply to #3

Re: Vapor or Gas Problem

02/09/2007 11:59 AM

Thanks, could you recommend a name or brand on the sealent.

I agree copper is a better way to go than aluminum.

__________________
 Ray Richard Operations/Sales
Register to Reply
Register to Reply
Have a Different Question?
4 comments
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); PWSlack (1); rrichard (2)

Previous in Forum: Looking for Information/Materials Sources for Moulding Rubber in a Small Shop   Next in Forum: Looking for information/material sources for making polyurethane foam

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Chemical & Material Science:
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 (82 right now)
Show Members
Advertisement