I know about using bird shot, bb's, short brads, small pieces of broken glass, even course sand to prevent the pieces from sliding around. But I just watched a video where he(sorry pc incorrect) used tablesalt sprinkled on the glue for the same purpose! Has anyone heard of or done this? Wouldn't the salt cause  deterioration of the wood fibers? Wouldn't sugar be a better option? Personally I wouldn't use either one! Hmmm, how about "Grapenut cereal"? It's hard enough to break teeth!

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I always used a tack.,.,and I kept reading about using salt for years.,.,so I tried it.,,.pff.,.,  I think its some kind of urban legend.,,. 3 grains of salt.,.,??   When I added a little salt to the joint the Titebond glue assumed the feeling and grit of micro-mortar.,.,total BS.,.,.I had to scrape the joint clean, use fresh glue and a tack.,.,.,I would never do it again unless I was just trying to punish myself.,.,.,

My grandfather used all the methods I mentioned earlier with the exception of the brands and salt, those cost money.(long story) How are you using tacks? Lying them on their side like mini splines or pressing the heads into the wood with the points up?

The only place i need to stop the sliding is in the scarf joint of the neck/headstock. I drill a small hole with the joint dry, add the glue, then the tack. Clamp till dry, then pull the tack. The finger board covers the tiny shallow hole. In hindsight, I could use a toothpick instead of the tack, and just leave it there.,

Gotcha! Have to give it a try. Since its being covered anyway I'd use the small bamboo skewers, I use them for screw holes.

I've heard of it in several places. It usually says "a few grains" whatever that is. So, it may not be enough to cause deterioration of the glue. I find it irrelevant since there are so many other options that work. I still find the use of a single tack just to hold it steady until the clamps are in place. I put glue on both surfaces, scrape off the excess and let it get sticky before mating the pieces. Haven't had a slipped scarf joint in a long long time.

In the vid he used a salt shaker, although very small amount. Grandpa had a Chock full of nuts coffee can full of fine broken glass, but he also still used powdered glue.

Yes, letting the glue tack up is the best way to avoid slipping on any kind of joint?

Yea, what BrianQ said...

I've used salt, for use on fretboards and the scarf joint. about 10 grains of salt 3" from each end of the fretboard centered. On the scarf joint I have placed salt dead center, squeeze clamps at each end then a C clamp in the center.  No slipping and  no glue was fouled. I think it works great. I keep a salt shaker in the shop.

Didn't mean to sound cynical, just never heard of it.

Here's a trick I imagined in my head and ended up working so well I use it for anything that may need help with slippage...

Take a staple gun and put a staple where the join will be. Use your fret snips to snip the embedded staple on each of the ends, removing the middle. You may have to raise the staple out a bit to do this - which is fine (you really only want the staple to go in halfway). What you have now are two sharp metal posts. Apply your glue over the area and press the other piece of wood onto the posts and clamp up. The staple will hold the joint enough to prevent slippage, it won't interfere with the join, and you'll never see the work.

I've actually modified a staple gun so that it only puts a staple in halfway, just for these types of joints.

Cheers!

I like that idea better than trying to hammer in those tiny friggen wire brands and nipping off part of it. Thanks for the tip.

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