Questions
Wood repair, answered.
Straight answers on knot filler, batteries, color and shipping. If yours isn't here, the Contact page reaches a real person.
Which batteries does the PRO Cordless gun work with?
Your own. The WR 540 PRO runs off DeWalt, Makita, Milwaukee or Bosch 18V packs through an adapter. Pick the adapter for the brand you already own. No proprietary battery to buy, no extra charger cluttering the van.
How do I pick the right color?
Match the filler to the darkest grain in the wood, not the lightest. You can blend two sticks for anything in between. Most pros keep Pine, Oak, Walnut and Black on hand and mix from there. Start dark, you can always warm it up.
Can I switch colors mid-job without wasting filler?
Yes, but do it right. Cut the stick and run it all the way out through the gun, never pull it back, that chews up the chamber. Got leftover? The Knot Filler Saver presses it back into a usable stick. Then load the next color.
Will the repair hold up outdoors?
Yes. The filler is water-repellent and UV-stable, rated for indoor and outdoor work. It stays slightly flexible, so it moves with the wood through the seasons instead of cracking back out.
Is it safe to use indoors?
Yes. The filler is solvent-free and non-toxic, and it meets IKEA's IOS-MAT-0054 spec, which screens for BPA, lead, cadmium and phthalates. No fumes filling the room, no mask needed for a few knots.
Can I stain or varnish over it?
Go ahead. Once it's cut flush and sanded, it takes oil, stain or varnish like the wood around it. That's the point, the fix disappears under the finish.
How fast does it set?
Seconds. You melt it into the crack, press it flat with the cooling brick, and it's hard enough to cut almost right away. No waiting overnight for filler to cure.
Do I buy the gun every time?
No. The gun is a one-time buy. After that you reorder the stick colors you burn through. The sticks are the consumable, the gun keeps working.
What does shipping cost?
Orders over $99 ship free inside the US. Under that you see live UPS rates at checkout, no flat surprise. Most orders leave Virginia in 1 to 2 days.
What if it's not right for me?
You've got 30 days. If the kit isn't doing what you need, send it back. The details are on the Returns page.
Do you do trade accounts?
Yes, especially across Virginia and the Carolinas. Buying for a crew or a shop? Reach out through Contact and we'll set you up.