WoodCentral Forums

Est. 1998 — 27 years of woodworking knowledge

Glue checks

Posts

Glue checks

#1

Glue checks

Svante Nilsson

I am doing some solid kitchen doors (no frame). When the boards was dried after resawing there was one end check, sadly a bit longer than I can afford. As I don't have any more similar boards, I tried to penetrate glue in the check (I dilute the glue with a thad of water to decrease viscosity) and apply heavy pressure with clamps for a couple of days.

I have done this a couple of times over the years and so far the cracks have been healed and stayed that way - but I am always worried thath the check will open again....

Has anybody a better process or recommend another glue?

Re: Glue checks

#2

Dental Floss

Bill Tindall, E.Tn.

Glob some glue on the outside of the crack and work it into the crack with dental floss.

Re: Glue checks

#3

Re: Dental Floss

Barry Irby

Dental floss is a good idea. You can also put glue on top and suck it into the crack with a shop vac underneath.

And you can soak the inward end of the crack with thin CA glue. It will wick into parts of the crack the thicker glue can not. When I have cut away the check on the end of a board I soak it with the thin CA and let it wick in to be sure the crack does not go further than I think and to seal and hold it if it does. I have been amazed watching the CA wick an inch or more further than I thought it would.

Re: Glue checks

#4

Re: Dental Floss

Bill Tindall, E.Tn.

I have had no success fastening a crack back together with CA glue. Not sure why because as you say, it wicks to the tiniest end of the crack.

Re: Glue checks

#5

Re: Dental Floss

Philip F Duffy

Try using medium thickness CA rubbed into the crack with finest dust. It will not go so deep, perhaps, but in my bowl turnings it holds the dust I rub in better, hides the crack and never comes apart.. P.

Re: Glue checks

#6

shop vac

Virgil Johnson

can you get to the back side and try to pull the glue thorough the crack with vacuum?

Re: Glue checks

#7

Re: Glue checks

Ralph Lipeles

I've had good success getting glue into a crack using a fine artists spatula. It's very thin and also flexible.

Re: Glue checks

#8

Re: Glue checks

Dave Bair

Lay a bead of glue along the flaw and use compressed air to blow it into the void. Repeat, if necessary, to completely fill with glue.

Re: Glue checks

#9

What I've done

Lee Schierer in McKean, PA

On those occasions when I've wanted to glue up a check, I apply a bead of glue along the check and then I use my shop vac on full power to suck the glue into the crack from the bottom side. If all the glue goes in apply more glue, then clamp the check closed with some clamps, then clean up the squeeze out.

This method works better and faster than dental floss.

Lee

Re: Glue checks

#10

Re: Dental Floss

Barry Irby

I don't have much faith in the CA, not sure it is permanent. I use the other glue, Titebond, Epoxy, whatever to actually glue the check but use the thin CA in the tiniest part in hopes of stopping further splitting.

Sometimes I think I have cut the check off the end of the board and apply the CA and it wicks into an invisible part of the crack. I am suspicious my eyesight is not as good as it should be. Adding the CA is kind of like...If you really don't want your pants to fall down wear both a belt and suspenders.

I have used it to firm up the frass in worms tracks and spalted wood that got a little too spalted. Works great for that.

Re: Glue checks

#11

Ellis Walentine

Yet another way

Ellis Walentine

I put a bead of glue on top of the check and then press it into the check with a finger, working it back and forth until all the glue disappears.

Ellis

Re: Glue checks

#12

Kneale Brownson

Best if it's unwaxed dental floss


👍 This page answered my questions

Your vote helps other woodworkers quickly find the answers and techniques that actually work in the shop.