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How long do you guys leave your clamps on white or yellow glue ups?

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Forum topic by TopamaxSurvivor posted 04-28-2009 03:50 AM 3576 views 0 times favorited 10 replies Add to Favorites Watch
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TopamaxSurvivor

17676 posts in 3143 days


04-28-2009 03:50 AM

Topic tags/keywords: clamp time how long how long to clamp clamps

I just searched this, but no info. I’m wondering how long you leave your clamps on a white or yellow glue up?

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence


10 replies so far

View PurpLev's profile

PurpLev

8523 posts in 3116 days


#1 posted 04-28-2009 03:59 AM

depending on the glue,

I use titebond (original) and I think it states 45 minutes for clamping on the bottle. but you still can’t apply any pressure on the gluedup parts – so in general, I’ll try to let it sit for 24 hours if I don’t need the part to continue with the project, but if I do, I’ll let it site for ~1 hour, and then make sure I don’t apply any shear force on that piece that would agitate the gluedup edges.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

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lew

11348 posts in 3222 days


#2 posted 04-28-2009 04:19 AM

30 minutes to about 2 hours. Like PurpLev said, it depends on how much stress the next operation will place on the joint.

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View kiwi1969's profile

kiwi1969

609 posts in 2909 days


#3 posted 04-28-2009 04:24 AM

depends on the climate as well as the glue. The henkel brand glue we used here had a clamping time of 20mins and was ready to work as soon as it come off the clamps and we never had a problem with that. I always reckon 30mins to an hour is plenty in the clamps but I don,t like to machine it for at least 4 hours if it,s your ordinary ( non industrial ) glue. I think the longer the better is wisest.

-- if the hand is not working it is not a pure hand

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TopamaxSurvivor

17676 posts in 3143 days


#4 posted 04-28-2009 04:49 AM

Thanks for the replies. I’m using Elmer’s Probond. It says to clamp for an hour or more, full strength in 24 hrs and not for structural use. I usually let things set of a day or more. I was just wondering if anyone had trouble taking clamps off in less than a few hours. Sounds like not :-))

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View tooldad's profile

tooldad

660 posts in 3182 days


#5 posted 04-28-2009 04:57 AM

We remove the clamps in class after 2+ hours. That is only because we have limited amounts of clamps, and the kids won’t work the piece until the next day, so it just sits in the storage room. I am 2-4 hours at home.

View Don Newton's profile

Don Newton

714 posts in 3086 days


#6 posted 04-28-2009 04:57 AM

How long….until the glue dries…..works better that way! Sorry!

-- Don, Pittsburgh

View BlankMan's profile

BlankMan

1488 posts in 2820 days


#7 posted 04-28-2009 05:11 AM

I usually leave it clamped overnight too. I’m not in a hurry and just want to be sure it’s set.

It usually works out that the glue up is the last thing I do before calling it a night, or I’ve got other wood to machine for the next step.

-- -Curt, Milwaukee, WI

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Kindlingmaker

2656 posts in 2994 days


#8 posted 04-28-2009 05:13 AM

...and follow the directions on the container of glue…

-- Never board, always knotty, lots of growth rings

View TopamaxSurvivor's profile

TopamaxSurvivor

17676 posts in 3143 days


#9 posted 04-28-2009 06:32 AM

..an hour or more, full strength in 24 hrs and not for structural use seems a bit vague about when to expect trouble. Especially the not for structural use part. I suppose that is refering to buildings?? eh?

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View knotscott's profile

knotscott

7224 posts in 2843 days


#10 posted 04-28-2009 01:55 PM

At least 30 minutes or so in clamps, but no stress on the joint for at least 24 hours.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

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