"I echo earlier reviews regarding the essential nature of clamping and expansion/foaming.
Used it for the first time to stick loose wooden chair legs back onto seat - brilliant, and very very strong.
The non clamped excess foam is quite easy to remove so don't worry about the apparent mess. Don't try and remove excess before foam has appeared/set - it stains black (hands especially)
Have also used the glue to hold Fischer UX plugs into very crumbly masonry - you need a thin bead of hot melt glue at the front of the plug to seal the plug into the wall (after working the Gorilla glue into the dampened plug slots and coating the rear expansion with a good layer).
Use a long screw just into the plug as a holder and to insert into hole (7mm diameter instead of the usual 6mm) - make sure all loose dust is out first (see Fischer resin fix air pump - use drinking straw into tube for the 7mm hole)
The hot melt glue sets in 2 minutes and stops the foam coming out the front of the hole.
Fiddly yes, and would be expensive/time consuming for hundreds of fixings - but the three fold expansion of the Gorilla glue into e.g. Celcon blocks or masonry gives you a very very firm plug indeed for those problem jobs. Left to set overnight but blurb says 80% strength in 1-2 hours so maybe that enough for most jobs."
"Best Wood Glue I have found, I have used this glue on many occasions to repair damaged frames ect. and I find it gives a as good as new finish after cleaning. Follow the instructions and you can not go wrong.....I have never had a repair fail...."
"Used this glue on a variety of projects - even to bond two pieces of granite! It is true that you need to use sparingly and for best results clamp the pieces until the excess (if any) has dried. I usually leave parts clamped overnight especially if neither piece is absorbent such as metal.
When used on timber make sure the joint is correctly positioned because once this stuff sets it is virtually impossible to dismantle without damaging the wood."
"Used the Gorilla glue to re-attach the felt soles of my wading boots (for fishing). Used as directed and it worked as stated on the packaging. Have worn the boots numerous times since the repair, walking along tracks, scrambling over rocks and immersed in river water for up to to 4 hrs at a time - soles still firmly attached. I strongly recommend this glue, especially if there is a void in the items to be glued as it expands as it cures."
"I've found the best way to extend the shelf life of this glue is to store the bottle upside down. This way the glue furthest away from the cap is the only part of the glue in contact with the air. Best to leave a slight vacuum in the bottle ie replace cap straight after using a small amount."
"As per the previous review, effective clamping is essential to ensure the expansion on curing gets into all the micro crevices.
Value for money is marked down somewhat as it does slowly solidify in the bottle, albeit over quite a few months. I would prefer a smaller amount at lower cost as you don't need much for most gluing jobs."
"A good glue with great sticking power, but you must use a lot less than you would for other glues. If foams. It foams alot! I used about twice as much as I should have and spent some time carving and sanding the excess off. Resembles the expanding foam used to plug gaps."
"I would warn anyone using it to beware, the glue is no good for plastics. You also have to clamp things together for 1-2hrs before the glue sets. Other faster setting superglues are better for the smaller jobs in the house."