Reply by Rich

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Posted on Best filler/sealer for open grain wood?????

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3663 posts in 736 days

#1 posted 06-18-2017 11:27 PM

I can suggest three that I’ve used very successfully. First is Aqua Coat. It is a water based gel-like product that you wipe on and, using something like a Bondo spreader or credit card, squeegee off. It dries quickly and sands easily since the bulk of the filer is scraped off while still soft. Second is General Finishes Enduro water based sanding sealer. It is brushed on and allowed to dry. It dries quickly and sands nicely as well. Third is called Heavy Bodied Sanding Sealer from Mohawk Finishes. It is a solvent based product that sprays on and dries quickly and sands easily.

All of these will give the best results with multiple applications, but you can definitely achieve a piano finish.

As I said, I’ve used all three and none of them will cause any discoloration of the wood. However, as always, it’s important to do as many practice boards as needed to get the result you desire before tacking your final piece.

Edit: I should note that the General Finishes sanding sealer and the Mohawk sanding sealer will allow you to build a surface layer onto the wood. The Aqua Coat is simply a pore filler. Of course, the first two can be sanded down to the wood, leaving only the pores filled, if that is what you want.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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