Replies

1. 
   AdamCherubini | Mar 14, 2007 11:41pm | #1

   A noble effort. I'd like to see you add some issues for your chart; gap filling properties, surface prep requirements, and clamp pressure requirements (which is related to gap filling).

   A few pieces of data appear to be incorrect.  Hot hide glue open/work time is considerably shorter than you indicate, liquid hide glue is considerably weaker and less stiff.  PVA's are flexible compared to epoxy or hot hide.  Neither epoxy or hide glue can be considered shock resistant.

   FWW did an article some time ago on this subject, but the author failed to mention the issues I raised.  I think this is a subject that needs further attention.  I had good luck contacting Franklin directly and speaking with another engineer.  Franklin makes several different types of glue, so their engineers are very knowledgable.  I think FWW should consider updating either their website or their magazine with new content on this subject.

   I think there are many myths about glue and its use, so this information would be helpful.  If I may, I'd suggest a decision flow chart may be of more use.  Do you need a long open time?  Can you produce clamp pressure? etc etc, then guide the reader to the glue whose properties best fit the application.

   Thanks for doing this,

   Adam

1. 
   rjones69 | Mar 14, 2007 11:51pm | #2

   Funny you should mention the FWW article, that's where I took most of my information.  I am not sure I will be adding much as I am trying to keep it simple but I would like to try and correct some of the issues you have mentioned and will work on this.

   Your flow chart idea is awesome and would make a great addition to the document!!!

   Thanks for the input!

   RJ

1. 
   AdamCherubini | Mar 15, 2007 12:36am | #3

   Yeah, I was dissappointed in that article. So here's a question for you- suppose I just completed a set of dovetails. I did a really great job making them fit just right. What glue would be best for me? Its a drawer so assembly time isn't an issue.Or how about this one- I have a mortise and tenon joint. I can't clamp the joint, but its piston fit, what glue is best? How about if my joint is not pisston fit? What then?What about a long joint in a dining table?These are the problems woodworkers face and there are specific answers.Gap filling properties and clamping requirements are critical to choosing the right glue for teh joint. You could even go so far as to produce the joint with the glue system in mind. Piston fit joints (like that tenon) aren't always stronger.Adam

1. 
   rjones69 | Mar 15, 2007 01:04am | #4

   I think it's gonna take a little work but would be a great resource!  I'll see what I can come up with and post something when I have it revised:)