I have often heard that using silicone to bed deck hardware and ports on fiberglass boats is not a good thing to do. Recently on this site Bob Eeg also made that point. What is the thinking behind that? I know several people who have worked in boat building factories (Compac, Hunter, and Irwin to name just three) who recommend and use silicone for bedding hardware on their own boats. Beckson Ports specifies silicone for bedding their ports. Confused -- looking forward to reading thoughts on this. M-17 Atta Baby
once you use silicone it's very iffy to try to get paint to stick to the deck in the future (or bond something to it) if you every need some touchup or repair done. Use a polyurethane like 5200 or boatlife, and actually the cartridges that you can buy at Home Depot work just fine. We use to use silicone to bed the windows because it's available in clear and is much easier to clean up the excess; PU takes a lot more scrubbing which dulls the finish on the plastic windows. Jerry jerrymontgomery.org ----- Original Message ----- From: "Dick Straubel" <dicknatta@yahoo.com> To: <montgomery_boats@mailman.xmission.com> Sent: Thursday, May 22, 2008 2:01 PM Subject: M_Boats: silicone
I have often heard that using silicone to bed deck hardware and ports on fiberglass boats is not a good thing to do. Recently on this site Bob Eeg also made that point. What is the thinking behind that? I know several people who have worked in boat building factories (Compac, Hunter, and Irwin to name just three) who recommend and use silicone for bedding hardware on their own boats. Beckson Ports specifies silicone for bedding their ports.
Confused -- looking forward to reading thoughts on this.
M-17 Atta Baby
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I have used a number of bedding compounds, and silicone seems to be least durable when exposed to sun and air. I finally settled on boatlife life-caulk because it is relatively easy to work with, and I have found it to be unaffected after several years of exposure to saltwater or air. Silicone is fine as a quick rubber substitute in special applications. Tom Jenkins M17 Scintilla -----Original Message----- From: montgomery_boats-bounces@mailman.xmission.com [mailto:montgomery_boats-bounces@mailman.xmission.com] On Behalf Of Dick Straubel Sent: Thursday, May 22, 2008 2:02 PM To: montgomery_boats@mailman.xmission.com Subject: M_Boats: silicone I have often heard that using silicone to bed deck hardware and ports on fiberglass boats is not a good thing to do. Recently on this site Bob Eeg also made that point. What is the thinking behind that? I know several people who have worked in boat building factories (Compac, Hunter, and Irwin to name just three) who recommend and use silicone for bedding hardware on their own boats. Beckson Ports specifies silicone for bedding their ports. Confused -- looking forward to reading thoughts on this. M-17 Atta Baby _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
I worked for a forth generation shipwright years ago. If he caught anyone with a tube of silicone in the shop he would have a fit. I can't think of anything worse for contaminating a finish...any finish. Silicone has no business in any boatshop. I have worked in several. Jerry said it.....for bedding windows is just about it. Sillycone doesn't seem to stick to many things properly. With a polysuphide product (boatlife, 52-4200 3M, sikaflex etc) it sticks well (sometimes too well) but provides a 'custom flexible gasket' every time. Hard to clean up, but not impossible. Lots of rags and mineral spirits....paint thinner. Under the waterline......proper bedding compound only. IMHO. Tim D. -----Original Message----- From: montgomery_boats-bounces@mailman.xmission.com [mailto:montgomery_boats-bounces@mailman.xmission.com] On Behalf Of Dick Straubel Sent: Thursday, May 22, 2008 2:02 PM To: montgomery_boats@mailman.xmission.com Subject: M_Boats: silicone I have often heard that using silicone to bed deck hardware and ports on fiberglass boats is not a good thing to do. Recently on this site Bob Eeg also made that point. What is the thinking behind that? I know several people who have worked in boat building factories (Compac, Hunter, and Irwin to name just three) who recommend and use silicone for bedding hardware on their own boats. Beckson Ports specifies silicone for bedding their ports. Confused -- looking forward to reading thoughts on this. M-17 Atta Baby _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats -- No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.24.0/1461 - Release Date: 5/22/2008 4:44 PM
participants (4)
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Dick Straubel -
jerry -
Tim Diebert -
Tom Jenkins