Hello:
I tried to glue the laminate to the MDF board and it is not sticking. First, I used a product called “BondRite WC75” spray. When I sprayed it, it came very gummy.
So, I waited and went to Home Depot and brought “Weldwood” contact cement. I applied it directly over the “Bondrite” on both the Laminate (which did not have any “Bondrite” applied”) as well as the MDF (which did have the “Bondrite” applied). Waited 30 minutes before trying to glue it and put it together but it is not sticking.
I was trying to do my router table top. In order to do the router table top, do I need a specific laminate thickness.
Any suggestions is greatly appreciated. Can I salvage what I have?
Replies
It's been my experience that time isn't the only consideration with contact cement. I let it dry until brown wrapping paper, or a paper grocery bag, won't stick to it. I then wait several more minutes (but not exceeding the time envelope, per the manufacturer). Then apply it, with slip sheet, dowel spacers, or great care, and roll it in place.
Applying laminate when the contact cement is wet, or even tacky, almost guarantees failure.
The few times I've worked with the water-based stuff, I was unhappy. The solvent based gives me a much better job, that I feel more confident with.
Did you follow the directions to the letter? I could not find any information on an adhesive called BondRite WC75. I also don't understand the "...which did not have any 'Bondrite' applied..." part. Is BondRite a contact adhesive (which is what you would typically use for laminates) or something else?
In any case, you will almost never have success in attempting to apply one adhesive over another; adhesives are formulated to stick to particular substrates, not to each other. You should be able to remove the adhesive residue with lacquer thinner.
-Steve
I would start over. If you can sand down all the cement and try with some fresh Weldwood Contact Cement. Follow the directions to a "T", and let it fully dry.
Makes no sense to me, but, the cement has to fully dry, and be just barely tacky on both the particle board and the laminate.
I've had problems with contact cement going bad, so shop at a high volume store and get a high lot number can.
You may not be able to sand down that top adequately to make a good bond, so be prepared to completely start over with that top. You did nothing wrong here, this has happened to me as well, with some bad contact cement.
Regards,
Scooter
"I may be drunk, but you're crazy, and I'll be sober tomorrow." WC Fields, "Its a Gift" 1934
I, too, would recommend starting over. The only time I've had trouble getting laminate to stick is when I've applied too thickly. Brush on enough to cover the surface, but don't overdo it. Also, temperature can be a factor; as I recall, using it below 70 degrees can cause problems.
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