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View Andybb's profile

Longer working time glue needed

by Andybb
posted 11-09-2018 08:31 PM


15 replies so far

View Fred Hargis's profile

Fred Hargis

5808 posts in 3035 days


#1 posted 11-09-2018 08:44 PM

Well, the urea formaldehyde glues (Weldwood Plastic resin glue and others) have a longer open time, but they also need more clamp time, and a slightly warmer temperature. I’m guessing that “setup time” is working time? The plastic resin glues are also a little unhandy in that you mix up what you need, and then they have a pot life of 4 hours or so.

-- Our village hasn't lost it's idiot, he was elected to congress.

View Redoak49's profile

Redoak49

4239 posts in 2531 days


#2 posted 11-09-2018 09:09 PM

System Three T88 has a long open time of about 60 minutes.

View AandCstyle's profile

AandCstyle

3223 posts in 2799 days


#3 posted 11-09-2018 09:58 PM

Andy, Old Brown Glue has a long open time of about an hour and is reversible if needed.

-- Art

View Bill White's profile

Bill White

5230 posts in 4502 days


#4 posted 11-09-2018 10:03 PM

TB 3 has a longer working time.

-- [email protected]

View MrUnix's profile

MrUnix

7505 posts in 2741 days


#5 posted 11-09-2018 10:13 PM

West System epoxy w/209 hardener has a pot life of 40-50 minutes and a thin film working time of 3-4 hours. Most other epoxies have similar slow hardeners as well. Probably overkill though – what kind of working time are you looking for?

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View Redoak49's profile

Redoak49

4239 posts in 2531 days


#6 posted 11-09-2018 10:19 PM

I am a bit confused about Titebond 3. The website says open time of 8-10 minutes and assembly time of 20-25 minutes. The System 3 T88 is an hour. I have been using it to make a rocking chair and have had 45 minute assembly times with no problems.

View CaptainKlutz's profile

CaptainKlutz

1955 posts in 2036 days


#7 posted 11-09-2018 10:55 PM

Titebond I or II Extend for PVA or
+1 Old Brown Glue on domestic hardwoods,
+1 epoxy for oily exotic woods

TB II extend has longest open time I have found from a PVA ‘splash proof’ emulsion. It is about same, maybe a little longer open time .vs. regular Elmers white glue. Only negative is TB II extend is less viscous and drips much more easily than regular TB products.

One note with PVA glues: If your wood is porous open grain and extremely dry (<3-4% common here in AZ); the water from glue can flash into wood and shorten open time. If you need more open time due amount of glue area (IE time it takes to put all glue down), then switch to a roller bottle applicator, and not a brush.
Additionally – When I need to glue many large complicated joints on very dry Oak/Ash, I wipe the joint surface with a wet rag first, then apply glue. This gives me a touch more time to apply glue and gets parts assembled before I get glue bonded into surface and begin to create thick glue joints. Do not recommend wet rag trick on tight grain or oily exotic woods; then need to use different glue.

As always, YMMV

-- I'm an engineer not a woodworker, but I can randomly find useful tools and furniture inside a pile of lumber!

View lumbering_on's profile

lumbering_on

578 posts in 1032 days


#8 posted 11-09-2018 10:59 PM

Depends what you’re looking to do. Titebond 2 extend has an open time around 15 minutes, which is usually good enough.

Elmer’s Glue All has an open time around 30 mins, and is plenty strong. However, I wouldn’t use it on anything that is under a lot of stress when being clamped.

View Andybb's profile

Andybb

2171 posts in 1146 days


#9 posted 11-09-2018 11:35 PM

Thanks guys. Trying to glue this up today so grabbed the Weldwood at Ace Hardware.

Not a lot of glue surface. It’s a bassinet with 24 spindles plus another 16 m&t joints of figured maple.

Thanks again.

-- Andy - Seattle USA

View bilyo's profile

bilyo

886 posts in 1645 days


#10 posted 11-10-2018 03:14 PM

Just a heads up. I have used the Weldwood plastic resin glue and like it for certain things. However, in my experience, it is temperature sensitive in-so-far-as working or open time is concerned. I was working with it this past summer with temp above 90 and it started to stiffen up rapidly in the mixing cup (I don’t know what I mean by “rapid”. I wasn’t timing it. But, I had to hurry). I have also worked with it in cooler temps (maybe 60* ish) and working time was considerably more relaxed.

View WoodenDreams's profile

WoodenDreams

804 posts in 453 days


#11 posted 11-10-2018 06:33 PM

With titebond III, It does help to turn off your Air Filtration units and close your heating vents. The circulating air and room temperatures will effect the gluing time. I have had open assembly times of 20 minutes, and final clamping times of 35 minutes, just because I didn’t want to do certain glue-ups in stages, and had no apparent issues. You’ll find that the quality manufacturing companies will normally under rate there products. This limits issues & liability. The consumer will almost always test the limits of products, and blame the manufacture for problems, instead of the consumer blaming themselves for improper usage of product. Just like using a 1/2 ton pickup as a 1 ton pickup. or using a 500# hoist as a 1 ton hoist.

View ppg677's profile

ppg677

219 posts in 1398 days


#12 posted 11-11-2018 08:25 AM

I use Elmer’s Glue All when a longer open time is needed. Widely available.

It’s the white glue, but not the school white glue.

View AlaskaGuy's profile

AlaskaGuy

5415 posts in 2851 days


#13 posted 11-12-2018 01:12 AM

https://www.garrettwade.com/slo-set-glue-pt.html

-- Alaskan's for Global warming!

View Ocelot's profile

Ocelot

2365 posts in 3180 days


#14 posted 11-12-2018 10:15 PM

I was going to suggest Titebond II Extend. Not for temps below 50 though. I think they say not below 60. I’ve had some sitting in a silicone tray still be fairly liquid under the skin a day later. I think it was in the high 50’s in my shop.

View pintodeluxe's profile (online now)

pintodeluxe

6002 posts in 3355 days


#15 posted 11-12-2018 10:35 PM

TBII Extend is pretty runny glue. I have used it on complicated chair glueups before, and had a lot more glue to clean up afterwords. It is quite a bit thinner than regular TBII. I try to break my glueups into 2-3 manageable chunks, rather than gluing everything at once. That way I can use regular TBII.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

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