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filling pores before finish

Posted: Sat Dec 06, 2014 8:22 am
by tippie53
I like pore o pac it is similar to what Martin uses. It is a mineral spirit based product. I get the natural color and mix stain in it to match what I am working on.
http://www.grizzly.com/products/Pore-O- ... ural/H3963
I mix 3 tablespoons or so at a time. My favorite stains are minwax special walnut, dark walnut and ebony. I add a few drops of stain and get my filler dark. I often mix these 3 together. I have also used the dark walnut alone.
I like to use a plastic fork to stir and I want it to be about the color and consistency of Hershey syrup. I will stain my guitar first, then seal it. Then filler goes on. I add a drop of naphtha for each tablespoon to aid flash time. I do one side then the other, then the back. I also hit the top with sealer. I never fill spruce, Maple or Cherry. I brush it on with a stiff brush and allow it to start to flash over. You can see the surface go from a wet look to a muddy or chocolate. Then I rub this into the wood. Martin uses a wool bonnet. I have used that also but you can hand rub it in. Burlap or any coarse material will work. You want to see little beads of the material roll up. This gets forced into the pores. I usually do this 2 times, then scrape the binding and shoot a coat or 2 of sealer, then apply finish.
The only way to get a perfect finish is to start with perfect prep.

Re: filling pores before finish

Posted: Tue Dec 09, 2014 12:43 pm
by Monkmusic
Thanks John. I've been using the Stewmac filler which is "OK" but I'd like to get better results. I'll try this stuff next.

Re: filling pores before finish

Posted: Wed Dec 17, 2014 2:55 pm
by Jcolvin
Thanks John,

I just purchased some pore-o-pac so this is helpful. Can I use a regular old towel to rub it in instead of burlap? If I decide a second application is necessary, do I need to wait 'x' hours? Or just go ahead and apply the second?

Josh

Re: filling pores before finish

Posted: Wed Dec 17, 2014 8:24 pm
by tippie53
I allow 2 to 3 hrs between applications. If you get get the 2nd coat on too early it will soften the undercoat . I fill at least 2 times . After buffing I will scuff sand with 220 and shoot a coat of sealer.

stain seal fill seal finish