Necessary for etchimg primer if sanded

daveydoodle

daveydoodle

Petty Officer 2nd Class
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Jun 15, 2011
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160
Hi, I am painting some parts on my Alumicraft that previously had carpet glued , am sanding the glue residue off at same time roughing up the aluminum, does this need etching primer or will regular primer do the job?
 
ezmobee

ezmobee

Supreme Mariner
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Mar 26, 2007
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23,767
Re: Necessary for etchimg primer if sanded

Etching primer is needed on bare aluminum.
 
Friscoboater

Friscoboater

Captain
Joined
Jul 3, 2009
Messages
3,095
Re: Necessary for etchimg primer if sanded

Yep. I tried without a few years back, and it all it did was coat the part. It peeled right off.
 
daveydoodle

daveydoodle

Petty Officer 2nd Class
Joined
Jun 15, 2011
Messages
160
Re: Necessary for etchimg primer if sanded

Etching primer it is, Thanks
 
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