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Adhesives for Gluing Glass to Glass

 

This is part two of a two part series on using adhesives for gluing glass to glass.  Click here to go to part one, which covers the different types of adhesives that can be used.

 

When glass adhesives fail, it's common to blame the glue.  But in many cases the problem stems from improper use of the glue or from poor preparation of the surfaces to be glued.  Here's a handful of tips to help you get the best performance from the adhesives you use.

1.  First, it's extremely important the glass be clean.  You'll get good results if you use isopropyl alcohol (rubbing alcohol) to thoroughly cleanse the surface
.  Avoid petroleum based cleaners, glass cleaners like Windex, and solvents like acetone -- some of these products will leave a film that can interfere with the adhesive's ability to form a strong bond.

 

2.  Don't over apply the adhesive.  Not only is that wasteful, too much glue can make for a weaker, rather than a stronger, bond. 

 

3.  Always follow the directions for the specific adhesive you're using.  (This sounds obvious, but it's often violated.)  Some glues, such as Hxtal and many other epoxies, required precise measurement and application procedures.

 

4.  After the adhesive has been applied, avoid touching or disturbing the work until the adhesive has completely cured.  Rushing the job will cost more problems than it solves.


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Copyright 2005 Brad Walker.  All rights reserved.

This tip adapted from posts on the Warm Glass bulletin board and from Henry Halem's excellent book, Glass Notes.

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