Darryl Keil Last Activity 2026-01-12 8:29 AM
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Top Notch Drawers

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Joined: 2003-10-19

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Subject : Does PVA/titebond glue cure in vaccuum?
Posted : 2003-10-19 5:43 PM
Post #31040
We have been using UF 109 with acid to get 20 minute turn around in our bag press. We are pressing flat panels for drawer bottoms. We would like to use yellow/white glue in the press for the ease of application. Our first attempt with titebond failed. Has anyone had success using PVA in a vaccuum? If so, how do we do it?

Thanks
Dave


 
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Darryl Keil

Posts: 1456

Joined: 2003-05-22
Location: Maine

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Subject : RE: Does PVA/titebond glue cure in vaccuum?
Posted : 2003-10-19 8:07 PM
Post #31041 - In reply to #31040
PVA glues do not cure in a vacuum but they do bond. Cure is achieve when all the moisture is removed. This happens once the panel is removed.

In general PVA glues will not achieve the bond phase in 20 minutes, if thats what you are looking for. That's not enough time for the water in the glue to be sufficiently drawn into the substrate and veneer. One hour is more realistic for a good bond although 45 minutes or a little less is doable if just the right amount of glue is applied.

Sincerely
Darryl Keil


 
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Top Notch Drawers

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Subject : RE: Does PVA/titebond glue cure in vaccuum?
Posted : 2003-10-23 9:28 PM
Post #31045 - In reply to #31041
What would you recommend using that is easy to apply?


 
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Darryl Keil

Posts: 1456

Joined: 2003-05-22
Location: Maine

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Subject : RE: Does PVA/titebond glue cure in vaccuum?
Posted : 2003-10-25 6:12 PM
Post #31047 - In reply to #31045
I'm assuming you are asking about a PVA glue. Many folks have a particular brand they like for whatever reasons. Personally I am not overly specific with PVA glues. In general I like one that does not tack up too quickly, is a little thicker to minimize bleed through but not to thick to become difficult to spread, and that dries as hard as you can get with a PVA.

When I want a high level glue line I switch to a Urea resin glue. This is why Im not so particular when using PVA's, I dont expect so much from them.

Sincerely
Darryl Keil
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