Question
We have been using the Westech Adhesive HCC High Strength Contact Adhesive Low VOC HAP's free Non-Methylene Chloride. The shop is not happy with the adhesion characteristics and when we have tech support they say the panels have been contaminated. We have had some panels come off in the field. Is anyone having similar issues? Do you have any words of wisdom to share to eliminate the questionable bonding of this adhesive?
Forum Responses
(Adhesive Forum)
From contributor P:
The low VOC products will work just fine for you but it's important to understand how they differ from traditional contact cements. They tend to develop their final bond strength slower and I've found that they have a tendency to dive into some substrates leaving little or no glue on the surface. One way to know whether or not you have a glue problem is to look at the entire job that was glued up.
If everything is failing then it could be the glue. If only a few pieces are failing chances are something else is going on. There are a lot of variables to look at in the gluing process - temperature, humidity, application method, amount being applied, substrate, person applying, etc. Generally the adhesive is the first thing people look at for problems and the last thing that actually causes them.
