Tiny correction, 3M 5200 is an assembly adhesive, 3M 4200 is the bedding compound.
Phil Agur <http://www.catalina27.org/public_pages/profile270.htm> s/v Wing Tip Secretary, Call Sign WCW3485 IC27/270A MMSI 366901790 <http://www.catalina27.org> www.catalina27.org Vessel Doc# 1039809 -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Saturday, June 21, 2008 8:46 AM To: [email protected] Subject: Re: catalina27-talk: Mounting outboard bracket no....a bedding compound is 5200, life caulk, life seal, silicone, etc. The epoxy putty is a very hard (15,000 lbs. strong filler. It fills a void making a even bearing surface for two parts being assembled. It prevents the two surfaces being distended by the pressure of a fastener being drawn tight. In a cored sandwich it prevents the fastener from dimpling either surface. In a message dated 6/21/2008 11:40:24 A.M. Eastern Daylight Time, [EMAIL PROTECTED] writes: Is the epoxy putty the same as the bedding compound? ----- Original Message ----- From: [EMAIL PROTECTED] To: [email protected] Sent: Friday, June 20, 2008 10:59 PM Subject: Re: catalina27-talk: Mounting outboard bracket you are going to drill some holes...it is merely what you are going to do after you have punctured the skin of your "only thing you will ever own.....your boat.....not your property in ?, but your boat...a portable representation of your property. Take care "grasshopper" you are dealing with your REAL property! David In a message dated 6/21/2008 1:14:30 A.M. Eastern Daylight Time, [EMAIL PROTECTED] writes: Thanks David, Your method of using the epoxy putty to fill the hole sounds like Judy B's anticompression bushings she epoxies in place. I get the picture. Also, I like your idea of smearing epoxy putty on the backing plate to distribute the load onto any uneveness of the applied surface. Sheesh. And I thought I was just going to drill some holes and bolt. Thanks for your help. Brad ----- Original Message ----- From: [EMAIL PROTECTED] To: [email protected] Sent: Friday, June 20, 2008 1:40 PM Subject: Re: catalina27-talk: Mounting outboard bracket Whenever I through-bolt anything on my boat where there are two layers of hull/liner between my bolt and nut, I first drill a hole in one of the layers of fiberglass. I then pack into the hole enough epoxy putty (I use PC-7 or PC-10) to make a spacer. I pack a sufficient quantity to extend beyond the bolt opening. If I am using a 1/4" bolt I pack material in the space to fill an area of 1" in diameter. I allow this material to cure (24 hours) and I then drill my hole through both layers and the epoxy putty, install the piece of hardware, and bring it to light tension. Since I have no doubt used a bedding compound such as 3M's 5200 or some lesser adhesive material such as Life Caulk or Life Seal, I allow that material to cure (can take a few days to a week). Upon completing its cure, I then crank down on the fasteners compressing the bedding compound. I do this by tightening the nut so that the bolt does not turn thereby not breaking the compound's attachment to both the fastener and the boat. I have added many pieces of hardware to my boat and have never experienced a leak in all the years I have lived aboard (24 years). Additionally, whenever I add a backing plate to a piece of hardware, I always smear it with epoxy putty to allow it to distribute its load evenly against the surface to which it is attached. The sandwich is fool proof against moisture intrusion. David Hoyt In a message dated 6/19/2008 7:25:06 P.M. Eastern Daylight Time, [EMAIL PROTECTED] writes: That's quite a setup. Mine won't be as substantial, but I am looking forward to the extra "basement". I guess my quandry is how do you stick that all on the transom, bolting it on with the double wall construction in the aft compartment. Also, boats are stuff that dreams are made of and a ticket to adventure. We all have dreams. Thanks for your help. Brad ----- Original Message ----- From: [EMAIL PROTECTED] To: [email protected] Sent: Thursday, June 19, 2008 3:37 AM Subject: Re: catalina27-talk: Mounting outboard bracket but it is home and it has traveled to more places than you can imagine in your wildest dreams. In a message dated 6/19/2008 1:45:46 A.M. Eastern Daylight Time, [EMAIL PROTECTED] writes: That's one ugly boat. _____ Gas prices getting you down? Search AOL Autos for fuel-efficient used cars <http://autos.aol.com/used?ncid=aolaut00050000000007> . _____ Gas prices getting you down? Search AOL Autos for fuel-efficient used cars <http://autos.aol.com/used?ncid=aolaut00050000000007> . _____ Gas prices getting you down? Search AOL Autos for fuel-efficient used cars <http://autos.aol.com/used?ncid=aolaut00050000000007> . _____ Gas prices getting you down? Search AOL Autos for fuel-efficient used cars <http://autos.aol.com/used?ncid=aolaut00050000000007> . _____ Gas prices getting you down? Search AOL Autos for fuel-efficient used cars <http://autos.aol.com/used?ncid=aolaut00050000000007> .
