How strong is hot melt glue ?......

[dynax]

...... i was wondering how strong hot melt glue was and found this yt video,

https://www.youtube.com/watch?v=oba6ZYH1pbA

 

[Phil Pascoe]

Our club pro turner uses three guns at a time if he's mounting blanks of over a hundredweight. :shock:

 

[dynax]

did some experiments myself, using the general purpose stuff i got from Lidl, edge jointing pretty strong and in places tore the timber fibres, end grain pretty much on par with regular cheap pva and a good whack will split it,

 

[graduate_owner]

Very impressive, but it is polyurethane glue, not the usual hot melt sticks that you get in this country.

K

 

[graduate_owner]

As a result of this video, I thought I would try the strength of ordinary hot melt glue too. I tried gluing 2 pieces of tongue and groove softwood offcuts about 1" wide and 10" long with an overlap of about 5". I could not separate them so I put one end in a vice and pulled on the other. Still couldn't separate them but I could hear the wood starting to split. The glue sticks are cheap ebay ones too. Very impressed. Up until now I have only used hot melt glue to hold things in place before driving screws in. I think I can save on screws now.

K

 

[Phil Pascoe]

Have a look at https://www.gluegunsdirect.com/ - it's worth it for the information alone.