For wood, I wouldn't trust glue. I would either screw it, or drill it and peg it, in addition to the glue.
I think you are referring to strain, not sheer, if I understand you correctly. I would use more than glue. The stress on a drilled peg solution is sheer, glue that and it will be very strong. bs Sent from my iPhone 5S On Dec 16, 2011, at 11:18 AM, [email protected] wrote: > Eons ago I asked this question, and received several replies, but this time > I'm going ahead with the project. > > It has to do with glue holding an item in shear. Pretty sure that is correct > term. If you're at all familiar with the Charles Eames molded plywood and > leather lounge chair and ottoman, it would be helpful. There are four > 4.5"x1.75" hard rubber with a metal base blocks, two of which support the back > of the chair and two for the armrests. The metal is glued to the plywood, > meaning when you lean back in the chair all that is holding it is the glue for > the two blocks. > > Two broke off eons ago but fortunately a fellow has made new blocks which I > have. He includes PC*7 a 2-part epoxy paste as part of the repair kit. I'm > hesitant to use it it since it is now at least three years old - but could buy > new if someone is familiar with it and agrees it would make a terrific bond > for metal to wood. > > I'm currently filling some divots with JBWeld where some of the veneer broke > off on one of the glue areas. I've considered using it, but not sure how it > would work in shear. > > For the other, a large chunk of the veneer came off with the the block, which > I've managed to glue the veneer back (much easier to write than do) using > Loctite 2-part (extra time) epoxy. It claims to be 3,000 psi. > > Right now I'm leaning towards the Loctite, but open to suggestions. I am > convinced it must be a 2-part epoxy. I ordered some Titebond III wood glue > (not 2-part) which got rave reviews on the Internet. My acid test was to glue > two pieces of wood together to see if the wood broke before the bond did. Bond > broke, but will use it for occasional wood to wood items. > > I tried to pry the type of glue originally used out of Herman Miller, the > manufacturer, with no luck. By-the-by, they charge something like $1,500- to > do what I'm doing. > > So, PC*7, JBWeld, 2-part Loctite (it includes both wood and metal for its > use), or?? > > Back to the Roll Call. > > Biba > Irwindale, CA USA > -- > to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi > or email "unsubscribe alfa" to [email protected] -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
