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MARTINSR · 01-23-2017, 10:42 PM

You do not want to use primer to fill too much! If you have a low spot, it really depends now low. Is the paper hitting the bottom of the low spot? If it's not, DO NOT try to fill it with primer, you are asking way too much of the primer. Fill it with polyester putty and reprime.

You can spot prime the areas but overall on the last coats after you have blocked is always the best.

But don't try to fill too much, the primer should be limited to very minor differences with the filler and surrounding metal and sand scratches in the filler, that sort of thing. It's not to straighten out a dented panel.

Brian

01-23-2017, 10:42 PM	#2
MARTINSR Registered User Join Date: Dec 2000 Location: Boise, Idaho Posts: 6,001	Re: High build primer and block sanding You do not want to use primer to fill too much! If you have a low spot, it really depends now low. Is the paper hitting the bottom of the low spot? If it's not, DO NOT try to fill it with primer, you are asking way too much of the primer. Fill it with polyester putty and reprime. You can spot prime the areas but overall on the last coats after you have blocked is always the best. But don't try to fill too much, the primer should be limited to very minor differences with the filler and surrounding metal and sand scratches in the filler, that sort of thing. It's not to straighten out a dented panel. Brian __________________ 1948 Chevy pickup Chopped, Sectioned, 1953 Corvette 235 powered. Once was even 401 Buick mid engined with the carburetor right between the seats! Bought with paper route money in 1973 when I was 15. "Fan of most anything that moves human beings"