Hair dryer? - Woodworking Talk

Itchy Brother · 12-03-2008, 02:47 PM

Dang sry I ask so many questions.Titebond II says temp should be at least 50 degrees and clamp for 30 minutes.My garage is about 50 degrees and I glued up a couple of dado cut joints then put the hair dryer on ea for about ten min.for a little jump start.30 minutes seems too short a time to leave the clamps on.Waddya think of the dryer thing and leaving the clamps on a few hours?? Thanks.Itchy

djonesax · 12-03-2008, 02:57 PM

I use titebondIII and I clamp for a minimum of 30 min but will usually leave the clamp on until I need the clamp for something else or that clamp is in the way. IMO 30 min is plenty as long as your not stressing the joint. I sometimes sand after 30 min of clamping and haven't had any issues.

bradnailer · 12-03-2008, 03:14 PM

Regardless of what the instructions say, I usually leave my glue ups overnight or at least for four or five hours. I just work on some other part of the project while the glue cures.

Gerry KIERNAN · 12-04-2008, 02:13 PM

I don't see any real issue with using a hair dryer to speed things up in a cool environment, as long as you don't overdo it. Leaving the clamps on for longer than required does absolutely no harm. I tend to leave mine on longer as well.

Gerry

thekctermite · 12-04-2008, 03:10 PM

Same here. Anything under a couple hours makes me nervous, albeit unnecessarily. When it is cold out, I do my gluing in the unheated garage, but bring them in the house where it is warmer. The wife really appreciates that, let me tell you.

frankp · 12-04-2008, 05:03 PM

My only comment would be that too much direct heat can be bad for a joint too, especially with titebond in my experience. It makes the glue (and all epoxies I've used) gooey so that it won't set properly. A short period of time like that shouldn't hurt though.

red · 12-04-2008, 08:58 PM

Quote:

Originally Posted by frankp

My only comment would be that too much direct heat can be bad for a joint too

Just the thought of heat like that blowing across a glue joint sounds bad to me. I don't know if it will hurt the joint, it just doesn't sound right. My thinking would be to heat the shop or glue up in a warmer area. Red

BHOFM · 12-05-2008, 12:30 AM

I think only heating part of the wood is the bad
idea here??

As well, I really don't know why, just doesn't
sound right!