The judicial use of a heat gun will change thick epoxy to thin epoxy. Use slow cure [it's the strongest] and the heat will not accelerate the cure to fast to get the job together.
Ronald R. Eason Sr.[KRron] President / CEO Ph: 816-468-4091 Fax: 816-468-5465 http://www.jrl-engineering.com Our Attitude Makes The Difference! -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf Of Harold Woods Sent: Thursday, February 02, 2006 11:07 PM To: kr...@mylist.net Subject: KR> mixing different adhesives Hi Netters. Larry H was referring to the delamination of Steve Whitman's aircraft fabric on his wing. Epoxy is not involved in this case.The two adhesives did not stick well together because one was a nitrate base and the other was a buterate base. Steve should have known better but may be for what ever reason , we will never know, he did. Sure they held for 10 years but that was not good enough. Epoxy is not really any different. There are many things that I would never trust with epoxy. One of these is polyester, the regular adhesive in"regular" boat building fiberglass. They are worse than nitrate/butyrate bonds. When it comes to building a plane with epoxy, here I mean a wooden plane, epoxy is the best. However there are different types of epoxy. Some are thin and some are thick. If you are joining wood to wood and are using a fluid epoxy like the West system, be sure first to let the fluid epoxy sink into the wood then mix cabosil (silica jel) into another batch to thicken it . apply to the wet wood. Do not over clamp the two. The epoxy now will not run out of the joint and you will have a good bond. Other epoxy resins are thick. They will not run out of the joint but they may not soak too deeply into the wood fibres. I would trust the West system, properly used to make a wooden plane. I have used many epoxy system including T-88. I like the West best. I have been away and I am trying to catch up on my emails, which why I did not respond sooner. Regards, Harold Woods Orillia, ON. Canada. haroldwo...@rogers.com _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
