Solvent Based Adhesive Problems
Solvent Based Adhesive Problems
(OP)
I am currently working on a solvent based adhesive that consists of 3 solvents and 3 vinyl resins. In the warmer summer months, this adhesive could sit for 2 days and be thick enough for packaging. These cooler days (Michigan)the adhesive is having trouble setting up. Any suggestions? More vinyl resin or perhaps more time uncovered or mixing or temperature.
Also, if anyone knows of a chemical colorant that is a color when it is wet and clear when it dries?
Also, if anyone knows of a chemical colorant that is a color when it is wet and clear when it dries?





RE: Solvent Based Adhesive Problems
RE: Solvent Based Adhesive Problems
RE: Solvent Based Adhesive Problems
You can't or won't tell us what the resins and solvents are, have no way of knowing what the temperatures for the two conditions are...and you expect some kind of reasonable answer?
Are you using this glue to assemble some parts prior to shipping them? Or are you mixing batches of glue, and want the viscosity to be correct prior to filling containers to ship to customers that use the glue? It would seem to me in the latter case that you would have a lot better control over the product, and there would be no way that a variation in the formula would be tolerated.
RE: Solvent Based Adhesive Problems
The problem isnt that the thickness affects how the overall product performs but rather how runny it will be when applied. We hold onto the glue until it thickens up before packaging, but once it hits our acceptable range, it gets packaged off to smaller units and sold to consumers.
What i am looking for is what is affecting the viscosity as it sits. Is it just time, or something else like temperature or humidity.
I thank you for all your help and sorry for the vail of secrecy.
RE: Solvent Based Adhesive Problems