vessels internal coating checks
vessels internal coating checks
(OP)
I have a few vessels with bad coating in sea water systems like not uniform thickness, sand on the coating, improper cleaning before coating at some locations. What check can be done on the internal of vessel to check the coating quality after a repair job or when ever i received a vessel after a coating.





RE: vessels internal coating checks
Second, is a test for the integrity of the coating via a test for "holidays", which I beleive is a spark test. I don't know the details and disremenber which ASTM standard covers it, but you should be able to google it up.
Third is applied coating thickness, again I don't know the details but these are all routinely done.
Unfortunately, proper surface prep is going to be hard to check after the fact. Maybe make it a hold point.
Regards,
Mike
RE: vessels internal coating checks
First off, do you even have a specification for coating performed by a contractor? What is the type of coating yo need for the service application, required thickness, etc??????
If you do not have a coating specification for these vessels, you have nothing. This is more than just checking coating quality, you should have a detailed specification.
RE: vessels internal coating checks
RE: vessels internal coating checks
RE: vessels internal coating checks
The holiday test will be good test and i was looking for some test quality of the surface preparation.
any way thank u for the replies.
RE: vessels internal coating checks