Blistering??

[KZjim]

I am currently coating the hardware from a guys drum kit..... his haedware is chrome and its now satin black....
I preheated the parts and coated... no prob.. but the chrome on the a few of the parts blistered.... has anyone had this problem with chrome stuff... ?
I have done valve covers and air cleaners with no problems.

[nuttyman]

no, but the hardware you speak of is probably 20 guage or thinner correct? if so then it is probably warping under the heat &/or the integrity of the chrome's adhesion has been compromised.

nutty

[KZjim]

the parts are all cast, except for the rings that hold the drum head down... cheap chrome job?

[nuttyman]

perhaps, or it has been beat long enough that it is starting to peel?

[fxstcguy98]

The drum hardware is most likely potmetal and therefore it will outgas when heated and bubble even the worlds greatest chrome job.

[tavo1765]

Yep, its outgassing. You need to get outgass forgiving powder to help you and pre heat the **** out of it to a temp of at least 450f for 40mins to help reduce the problem.

[fxstcguy98]

No, you will have to remove the chrome first, it's most likely blistered under the chrome, then use the special powders

[gtabadboy]

What special powders are these?

[CaptainChauncy]

Originally Posted by gtabadboy

What special powders are these?

Most likely outgass forgiving powders..

[KZjim]

What about a lower temperature and a longer cure time?