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Box builders yellow glue

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SouthwestCNC View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SouthwestCNC Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2017 at 6:01pm
Originally posted by markie markie wrote:

DEFINATELY go for the tubes rather than bottles. You look at the bottles and they seem a much better deal but by the time you're half way down it has thickened enough to make it a pain to squeeze out of the bottle. The tubes go in a standard mastic gun.

I have to confess I've never had any problems with the everbuild brand  and must have used close on 100 tubes of the stuff. As above the excess cleans off easily with a sharp chisel.


The lumberjack is my no.2 pu in all fairness. Just never as neat to use I find. and more expensive than soudal ;)

Edited by SouthwestCNC - 12 April 2017 at 6:02pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote I-shen Soundboy Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2017 at 6:11pm
I got a good deal on Lumberjack, which was why I was still using it up three years on.  However the best eBay deals on Purocol are about £6, and a business address around the corner... I'll order some now and try it out over Easter.
Thanks for the tip.  And apologies to the OP for hijacking the thread 🤔
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dub Specialist Sound Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2017 at 6:46pm
No worries I Shen

all great info tbh,

thanks all for all advise
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Post Options Post Options   Thanks (0) Thanks(0)   Quote markie Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2017 at 7:34pm
[/QUOTE]

The lumberjack is my no.2 pu in all fairness. Just never as neat to use I find. and more expensive than soudal ;) [/QUOTE]



£4.50 a tube at Trago.
If it's got wheels or tits it's gonna cost a fortune
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SouthwestCNC Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2017 at 8:04pm
I pay £3.60 for purocol. £4.20 for lumberjack. Westward

Edited by SouthwestCNC - 12 April 2017 at 8:06pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2017 at 8:15pm
I found that waiting till the glue starts to foam before putting the joint together increases penetration into the wood and reduces the amount of messy dripping. search the forum for debate on whether PU glue is worth the hassle.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SouthwestCNC Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2017 at 8:33pm
I find it easier than PVa personally. One scrape of a chisel and it's gone completely . PVa needs sanding off and stains But it's not everyone's cup of tea and takes experience with it before you will feel comfortable with it. Using it from a bottle gives it a bad rep. In a gun it's a different product, the gun itself plays a big role aswel. I use a timco which pretty much stops all pressure as soon as you release the trigger without using the button. Guns like powerpros are great for sticking skirting on with gripfill but useless for pu. You will press the button multiple times, put it down and find when you return there will be a pool of it wheres it's carried on spewing out. The button is also too stiff, you want a gun with a stiff trigger easy button. Not other way around.

Edited by SouthwestCNC - 12 April 2017 at 8:35pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SouthwestCNC Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2017 at 9:06pm
I believe pu to be a stronger joint than PVa with birch ply for sure, well considerably. There is a glue that's stronger again I've yet to try on a cab and that is aerolite 360. Scores higher in tests considerably over any other wood glues.

Edited by SouthwestCNC - 12 April 2017 at 9:07pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2017 at 9:18pm
pva cleans off with a damp sponge before it dries.

most glues are stronger than the wood they are joining. comes down to joint type and glue penetration. see recent threads.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote I-shen Soundboy Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2017 at 9:25pm
Originally posted by SouthwestCNC SouthwestCNC wrote:

I use a timco which pretty much stops all pressure as soon as you release the trigger without using the button. Guns like powerpros are great for sticking skirting on with gripfill but useless for pu.

<Checks brand of caulk gun>
The Powerpro does require a wise hand to release pressure about a minute before you're finished, it's true.

Best online price for Timco caulk guns, before I pull the trigger?
(Pun fully intended 😁)

Damn, this is becoming a costly thread...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SouthwestCNC Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2017 at 9:43pm
Originally posted by snowflake snowflake wrote:

pva cleans off with a damp sponge before it dries.

most glues are stronger than the wood they are joining. comes down to joint type and glue penetration. see recent threads.


I agree completely. Penetration definitely plays a big part with all glues in natural woods, I don't think it's as applicable on end grain of ply as it once was before phenolic glued birch seems to have become the standard, if you can imagine the ply laminates that are already saturated both sides in phenolic glue that has the full un restricted ability to penetrate into that laminate effectively sealing the grain making say any water or solvent based glue a lot less effective at penetrating it.

So bond strength with ply can be as much the bond to the phenolic glue as it can be the grain.

Edited by SouthwestCNC - 12 April 2017 at 9:44pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote I-shen Soundboy Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2017 at 9:56pm
Originally posted by SouthwestCNC SouthwestCNC wrote:


if you can imagine the ply laminates that are already saturated both sides in phenolic glue that has the full un restricted ability to penetrate into that laminate

I don't believe the phenolic penetrates the ply laminates to an appreciable degree - the plys (surface and core) will suck up considerable amounts of liquid on their edges.

Stain some ply, then section: Observe how deeply the stain penetrates the edges but not the first phenolic glue layer (staining a surface, the stain won't penetrate past the first ply, but staining an edge it will go a few mm deep).

The phenolic resin is waterproof, but it doesn't impart this to the wood plys. Plywood in a puddle will warp and swell, but the glue does a job of holding it all together.
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