Hi,
I made a "laboratory test" for painting particleboard. I sanded the
particleboard up to 320. Then applied sealer. Sanded again with 320. The
surface feels very soft. Then I brush painted it with alkydalic
anticorrosive paint with a brush. After some days, when I pass the
fingernail hard over the painted surface I can give off the paint up to the
original surface. It looks like the paint doesn't "stick" to the surface.
Then I read the small letter instructions on the paint can (I agree, I
should be read it before but...). It says the surface should feel a little
harsh before painting. So it looks I oversanded. The problem is I sealed and
sanded all my "production" doors already. Now I should back sand all them
but up to which grit? Which maximum grit do you recommend?
Thanks in advance
--
Faustino Dina
--------------------------------------------------------
If my email address starts with two 'f'
drop the first 'f' when mailing me.
Faustino Dina asks:
>Then I read the small letter instructions on the paint can (I agree, I
>should be read it before but...). It says the surface should feel a little
>harsh before painting. So it looks I oversanded. The problem is I sealed and
>sanded all my "production" doors already. Now I should back sand all them
>but up to which grit? Which maximum grit do you recommend?
For painted surfaces, I don't go beyond a 120 grit. If you want to go hog wild,
go for 150.
Charlie Self
"In the final choice a soldier's pack is not so heavy as a prisoner's chains."
Dwight D. Eisenhower
"Faustino Dina" <[email protected]> wrote in message news:<[email protected]>...
> Hi,
>
> I made a "laboratory test" for painting particleboard. I sanded the
> particleboard up to 320. Then applied sealer. Sanded again with 320. The
> surface feels very soft. Then I brush painted it with alkydalic
> anticorrosive paint with a brush. After some days, when I pass the
> fingernail hard over the painted surface I can give off the paint up to the
> original surface. It looks like the paint doesn't "stick" to the surface.
> Then I read the small letter instructions on the paint can (I agree, I
> should be read it before but...). It says the surface should feel a little
> harsh before painting. So it looks I oversanded. The problem is I sealed and
> sanded all my "production" doors already. Now I should back sand all them
> but up to which grit? Which maximum grit do you recommend?
>
> Thanks in advance
I used a 1/2 lb. cut of super blond shellac as a sealer and
intermediary to paint in a similar project. Practically everything
sticks to shellac.
Wood-to-Dust Guy
you can try. I know paint doesnt stick to alot of surfaces without a primer
underneath to give it tooth. for example car paint.
"Faustino Dina" <[email protected]> wrote in message
news:[email protected]...
> > how about some primer?
> I used a wood sealer, SayerLack NS1000, I fear this is not a US brand,
kinda
> Brazil one. So it means possibly should I use a primer over the sealer?
> Actually the paint can (another local brand) recommended a primer (of the
> same brand, of course) but I thought primer and sealer was the same thing
> and I've used one yet...
>
>
> how about some primer?
I used a wood sealer, SayerLack NS1000, I fear this is not a US brand, kinda
Brazil one. So it means possibly should I use a primer over the sealer?
Actually the paint can (another local brand) recommended a primer (of the
same brand, of course) but I thought primer and sealer was the same thing
and I've used one yet...
> you can try. I know paint doesnt stick to alot of surfaces without a
primer
> underneath to give it tooth. for example car paint.
my "classic" problem is now to locate who sells the primer advised by the
can. I couldn't locate yet a full line of finishing products in my
locality...
Thanks a lot for your help
Faustino
how about some primer?
"Faustino Dina" <[email protected]> wrote in message
news:[email protected]...
> Hi,
>
> I made a "laboratory test" for painting particleboard. I sanded the
> particleboard up to 320. Then applied sealer. Sanded again with 320. The
> surface feels very soft. Then I brush painted it with alkydalic
> anticorrosive paint with a brush. After some days, when I pass the
> fingernail hard over the painted surface I can give off the paint up to
the
> original surface. It looks like the paint doesn't "stick" to the surface.
> Then I read the small letter instructions on the paint can (I agree, I
> should be read it before but...). It says the surface should feel a little
> harsh before painting. So it looks I oversanded. The problem is I sealed
and
> sanded all my "production" doors already. Now I should back sand all them
> but up to which grit? Which maximum grit do you recommend?
>
> Thanks in advance
>
> --
> Faustino Dina
> --------------------------------------------------------
> If my email address starts with two 'f'
> drop the first 'f' when mailing me.
>
>