Service And Advice
Glue Stick Advice
We are the adhesive experts!
Are glue sticks waterproof ?
Can I use glue sticks for exterior gluing? Are they waterproof / water resistant?
The problem with using a hot melt adhesive for exterior applications or applications involving direct water contact is that the adhesive is 100% thermoplastic with no added carriers, e.g. solvents. This means the adhesive sits on the surface of the materials being bonded rather than penetrating the surface with the help of the carrier (solvent).
If your substrates are porous (e.g. wood) or water can ingress/penetrate between the glue line and the substrate, this may cause the bond to fail, especially if there is a frost as this causes expansion.
Exterior applications should be avoided with standard hot melt adhesives as a general rule, unless specified by a member of the gluegunsdirect team and following your own application tests, as over the years we have found many applications, where in theory a hot melt adhesive would not be recommended, but in practice they have worked a treat especially if you can protect the glue line from the elements !
I wish we had a “true” waterproof glue stick. It would solve so many problems……..
Don’t come unstuck, talk to the glue experts
Posted in: Glue Stick Advice
Give us a call on 0161 627 1001