Darryl Keil Last Activity 2025-02-12 2:48 PM
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Timmy p

Posts: 4

Joined: 2017-12-15

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Subject : unibond one question
Posted : 2025-02-11 6:40 PM
Post #38080

hello, i am using Unibond One on a veneering project. Althouh I like 2 part unibond, since it is bullet proof, clean up is a pain. So, I am using more unibond one. I have some questions/observations
-does lacquer thinner affect the glue bond? I have experienced localized delamination where i suspect lacquer thinner interacted with the glue line.
-what is the clamping time for 70 degree, 20% relative humidity. even though the bottle says 45 min to 2 hours I keep it under vacuum longer by a couple more hours. it would seem that situations that have a heavier hand with the glue I have experienced buckling if i take it out of the bag too soon.
-is there a volume per area recomendation? i have gotten better results with veneer adhesion when i use less glue. what do the experts say?

any insights are greatly appreciated, Tim


 
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Darryl Keil

Posts: 1454

Joined: 2003-05-22
Location: Maine

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Subject : RE: unibond one question
Posted : 2025-02-12 2:48 PM
Post #38081 - In reply to #38080

Unibond One is not susceptible to lacquer thinner and whatever the reason for your delimitation, the lacquer thinner is not the reason. Why you had delamination is not easily determined as there are alway a host of reason why this might happen. Extra time in the bag is always a safe bet but the amount of glue you apply cannot be easily determined on a forum. Too much glue is a problem and too little can also be problematic. Taking too long to get the glued panel in the bag can also be a problem. The substrate as well as the kind of the veneer also comes into play. Then there is the issue that the delamination was only on a part of the panel, what does the mean? Lots of moving parts.


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