tag:blogger.com,1999:blog-4695685403802703716.post4662360720784231174..comments2024-03-10T00:46:33.915-08:00Comments on WPatrickEdwards: Old Brown Glue Invades Canada!W. Patrick Edwardshttp://www.blogger.com/profile/15001954861903457707noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-4695685403802703716.post-18281536017913144622012-02-11T08:17:54.000-08:002012-02-11T08:17:54.000-08:00I have used OBG many times to make special laminat...I have used OBG many times to make special laminations, including "plywood". I am currently making a series of marquetry boxes and I do not want the tops to warp. To solve this problem, I am gluing a 1mm mahogany core between two layers of 6mm multi ply, with the grains perpendicular. When this comes out of the press, I add 2cm of solid beech wood around the edges for the hinges, etc. Finally, I glue the 1mm face and backing marquetry on this core.<br /><br />You can use very thin material or even thick material to laminate a ply. It should be balanced by having the same layers top and bottom. It also should be left in the press for a day or two, since it takes longer for all the moisture to dissipate.<br /><br />The reason that plywood does not suffer dimensional shrinkage and crack is due to two primary reasons. First, the thin material used to make plywood is easier to dry out during manufacturing, compared to thick wood. Second, the ratio of glue surface area to wood is so great that the glue "wins".<br /><br />That said, when the process of making the plywood is rushed, you can see the results in warped plywood every day at the lumber yard.W. Patrick Edwardshttps://www.blogger.com/profile/15001954861903457707noreply@blogger.comtag:blogger.com,1999:blog-4695685403802703716.post-70653339333673053042012-02-10T11:12:22.034-08:002012-02-10T11:12:22.034-08:00Patrick,
Good news on the Canada encroachment. A ...Patrick,<br />Good news on the Canada encroachment. A tangental question but since I'll be using your Old Brown Glue maybe you can answer it. I want to make some shopmade plywood for a cabinet I'm making and was wondering how thin the plies need to be in order for it to be dimensionally stable? I have often wondered about plywood since it seemingly violates our understanding of the movement of wood. It doesn't seem to expand and contract like solid wood nor does it delaminate from the grain being cross glued.<br />Thanks<br />SFPaulAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-4695685403802703716.post-49696797169892239452012-02-10T08:08:18.144-08:002012-02-10T08:08:18.144-08:00Yes, of course. OBG works perfectly for laminatio...Yes, of course. OBG works perfectly for laminations.<br /><br />Use the search tool on my blog to find my full answer to this question.W. Patrick Edwardshttps://www.blogger.com/profile/15001954861903457707noreply@blogger.comtag:blogger.com,1999:blog-4695685403802703716.post-22821854221847228562012-02-10T04:02:09.232-08:002012-02-10T04:02:09.232-08:00Great news!
Can OBG be used for bent laminations ...Great news!<br /><br />Can OBG be used for bent laminations (i.e, does it produce a hard glue line, not subject to creep?<br /><br />Jim BAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-4695685403802703716.post-3138336836934874162012-02-09T20:27:10.767-08:002012-02-09T20:27:10.767-08:00Great news, picking some up this weekend. Congrat...Great news, picking some up this weekend. Congrats!Schuylernoreply@blogger.comtag:blogger.com,1999:blog-4695685403802703716.post-70743652596763214902012-02-09T18:21:07.319-08:002012-02-09T18:21:07.319-08:00Great news Patrick. I live a half hour from my Lee...Great news Patrick. I live a half hour from my Lee Valley store and love the glue. Now I won't have to bring it back from Az every year.<br /><br />Paul Millershipwrighthttps://www.blogger.com/profile/03918143115072888402noreply@blogger.comtag:blogger.com,1999:blog-4695685403802703716.post-42869470589768264262012-02-09T16:20:52.676-08:002012-02-09T16:20:52.676-08:00Yaaaaaayyyy!!!!!!Yaaaaaayyyy!!!!!!Anonymousnoreply@blogger.com