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Author Topic:   Adhesive to Secure Hull Liner Materials

jwestwood posted 08-02-2014 09:30 AM ET (US)
My 1974 Outrage 21 has a fabric-like vinyl material covering the hull cockpit interior hull side walls. It seems to have been secured with adhesive that has failed, and the material is unsecured from the top and hanging down. I have attempted using 3M Spray Adhesive 77 with moderate success. Anyone have experience with this repair and willing to share your ideas?
Jeff posted 08-02-2014 12:39 PM ET (US)
3M-77 Spray Adhesive is not really meant for that application. You would have much better success using 3M Spray 90. That is an automotive grade adhesive meant to be used in all kinds of outdoor applications where the temp and moisture can widely vary.
jwestwood posted 08-05-2014 10:31 AM ET (US)
thanks Jeff. The 3M 90 series has a longer dry time but will have to figure a way to live with that. I suspect I could apply and wait a while before contact. This may shorten the time necessary to hold the material in place until secure.
jimh posted 08-05-2014 11:53 AM ET (US)
By the way, on the c.1974 OUTRAGE 21 boats I have seen, I do not recall that there was any sort of vinyl material glued to the inside of the hull. I have see one rather good-looking older OUTRAGE 21 in which some strips of teak or mahogany were glued or otherwise fastened to the inside of the hull below the gunwales as a decorative trim.
jwestwood posted 08-05-2014 12:51 PM ET (US)
Jim: If you look at pictures of the Ribside Outrage and the smoothside Outrage at least through 1974, you will see a dark brown material covering the inside hull walls. I have also seen the wood strips you described but not sure if that was production or custom. I believe Don McIntyre has the same material on his (I believe) 1973 Outrage 21.
jwestwood posted 08-06-2014 10:44 AM ET (US)
Solve the toughest aspect of this repair by holding newly glued material in place with inflatable fender place under the gunwale. Works like a charm.
kwik_wurk posted 08-06-2014 07:55 PM ET (US)
For odd contours try pillows. --- You'll get a funny look from the wife, but take house pillows/cushions and put them in trash bags. -- Then use these for odd shaped contours corners, using regular pieces of wood as backing and to prop things into place.
jwestwood posted 08-14-2014 10:48 AM ET (US)
I have decided that I would prefer the interior walls to match the color of the gelcoat and I am removing the dark brown vinyl material. In doing so, I removed the plastic "U channel" section that runs along the deck where it meets the side wall. I have no idea why this specific configuration was used unless it was intended to act as a conduit for wiring running fore and aft in the boat. I would like some suggestions on cleaning residual adhesives from the now exposed unfinished fiberglass walls and the type of paint that would make the most sense. I am thinking Goof Off to clean the adhesive. And, I would think I could get away with a household type paint as the walls get no ware and tare. Any thoughts out there?
acseatsri posted 08-14-2014 03:31 PM ET (US)
Acetone will remove the adhesive and prep it for paint. It's cheaper than Goop-off and will work better.
I would use Interlux Brightside Polyurethane paint- easy to use, easy to clean up, and flows out nicely.
jwestwood posted 08-14-2014 04:07 PM ET (US)
Thanks so much for your input. Might you know if the Brightside paint could be tinted to try to match the color of the gelcoat?
acseatsri posted 08-14-2014 04:38 PM ET (US)
It probably could be. Best to call Interlux and ask. Oyster White is a little lighter than desert tan. Or try to pick a color that contrasts well with the current color.
jwestwood posted 08-14-2014 04:49 PM ET (US)
It's interesting that you mentioned a contrasting color as I was looking at their color chart and thought about the lighter blue that would be reminiscent of the original Boston Whaler blue. Have to think on that one.

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Author	Topic: Adhesive to Secure Hull Liner Materials
jwestwood	posted 08-02-2014 09:30 AM ET (US) My 1974 Outrage 21 has a fabric-like vinyl material covering the hull cockpit interior hull side walls. It seems to have been secured with adhesive that has failed, and the material is unsecured from the top and hanging down. I have attempted using 3M Spray Adhesive 77 with moderate success. Anyone have experience with this repair and willing to share your ideas?
Jeff	posted 08-02-2014 12:39 PM ET (US) 3M-77 Spray Adhesive is not really meant for that application. You would have much better success using 3M Spray 90. That is an automotive grade adhesive meant to be used in all kinds of outdoor applications where the temp and moisture can widely vary.
jwestwood	posted 08-05-2014 10:31 AM ET (US) thanks Jeff. The 3M 90 series has a longer dry time but will have to figure a way to live with that. I suspect I could apply and wait a while before contact. This may shorten the time necessary to hold the material in place until secure.
jimh	posted 08-05-2014 11:53 AM ET (US) By the way, on the c.1974 OUTRAGE 21 boats I have seen, I do not recall that there was any sort of vinyl material glued to the inside of the hull. I have see one rather good-looking older OUTRAGE 21 in which some strips of teak or mahogany were glued or otherwise fastened to the inside of the hull below the gunwales as a decorative trim.
jwestwood	posted 08-05-2014 12:51 PM ET (US) Jim: If you look at pictures of the Ribside Outrage and the smoothside Outrage at least through 1974, you will see a dark brown material covering the inside hull walls. I have also seen the wood strips you described but not sure if that was production or custom. I believe Don McIntyre has the same material on his (I believe) 1973 Outrage 21.
jwestwood	posted 08-06-2014 10:44 AM ET (US) Solve the toughest aspect of this repair by holding newly glued material in place with inflatable fender place under the gunwale. Works like a charm.
kwik_wurk	posted 08-06-2014 07:55 PM ET (US) For odd contours try pillows. --- You'll get a funny look from the wife, but take house pillows/cushions and put them in trash bags. -- Then use these for odd shaped contours corners, using regular pieces of wood as backing and to prop things into place.
jwestwood	posted 08-14-2014 10:48 AM ET (US) I have decided that I would prefer the interior walls to match the color of the gelcoat and I am removing the dark brown vinyl material. In doing so, I removed the plastic "U channel" section that runs along the deck where it meets the side wall. I have no idea why this specific configuration was used unless it was intended to act as a conduit for wiring running fore and aft in the boat. I would like some suggestions on cleaning residual adhesives from the now exposed unfinished fiberglass walls and the type of paint that would make the most sense. I am thinking Goof Off to clean the adhesive. And, I would think I could get away with a household type paint as the walls get no ware and tare. Any thoughts out there?
acseatsri	posted 08-14-2014 03:31 PM ET (US) Acetone will remove the adhesive and prep it for paint. It's cheaper than Goop-off and will work better. I would use Interlux Brightside Polyurethane paint- easy to use, easy to clean up, and flows out nicely.
jwestwood	posted 08-14-2014 04:07 PM ET (US) Thanks so much for your input. Might you know if the Brightside paint could be tinted to try to match the color of the gelcoat?
acseatsri	posted 08-14-2014 04:38 PM ET (US) It probably could be. Best to call Interlux and ask. Oyster White is a little lighter than desert tan. Or try to pick a color that contrasts well with the current color.
jwestwood	posted 08-14-2014 04:49 PM ET (US) It's interesting that you mentioned a contrasting color as I was looking at their color chart and thought about the lighter blue that would be reminiscent of the original Boston Whaler blue. Have to think on that one.