Removing Glue From Old Patch?

GTM · 13 July 2008, 20:20

Hi all,

I'm new here first post, So hello to everybody. I have just bought a Avon R2.80 Rover Rib, as abit of a mess around and a tender for our bigger boat (Bayliner 37ft)

Question is...

I've found the boat is leaking from where its been previously patched, ok thats good I suppose means the boat wont have yet another patch.

Whats the best thing to use to remove the patch, is there a solvent someone sells that will safely remove the glue without attacking the hypalon?

Thanks very much!

ribraff · 13 July 2008, 21:40

The best way to tackle this is to remove the old patch with a hot air gun slowly heating it up and then pull it off by pulling up one of the corners and peeling it back with a pair of pliers or similar, allow the patched area of the tube to cool down and use a dremmel type tool which is basically a small dye grinder, very slowly grind the glue off, it's best to have it on a low setting. You should end up with a keyed patch of fabric ready for the new patch.

GTM · 13 July 2008, 21:49

Thanks for that! I'll give it ago, I've got a Dremel.

What attachment would work best do you think?

Chris · 15 July 2008, 19:25

Quote:

Originally Posted by GTM

Thanks for that! I'll give it ago, I've got a Dremel.

What attachment would work best do you think?

Sanding drum, just be gentle and just get the old glue off not half the hypalon as well.

ribraff · 15 July 2008, 20:22

Use the rounded stome which you usually get with the set, make sure it has'nt got any sharp corners on it or you'll go through!!!

Remember to start off on a slow speed 'til you get the hang of it.

Ezgoing · 16 July 2008, 02:46

Use bostik thinners.

Glue will melt.No damage to tube.

rgds

jyasaki · 16 July 2008, 16:15

Bostik M501 contains toluene, which will at least soften the hypalon (which is why its also used in the adhesive.) Long exposure will dissolve it. Granted, a wipe-down will probably not do much, but it will probably take a bit more than a single wipe to get the old glue off. Bottom line is to watch carefully for any effect to the hypalon. Allowing the solvent to flash off between application wouldn't hurt.

jky

ribraff · 16 July 2008, 17:57

If you use the Dremmel tool with a sanding stone you kill two birds with one stone, removing the glue and keying the hypalon ready for the new patch.

Use this one

mike-stgt · 17 July 2008, 17:21

Hi, there is a special tool on the market to clean body parts from cars . Its a round rubber for the drillingg machine . You get on the glue with the rotating rubber and it gets warm and rubbed away. 3M has it e.g. (Ihave it also :-) )

Mike

jyasaki · 17 July 2008, 21:37

Quote:

Originally Posted by mike-stgt

Hi, there is a special tool on the market to clean body parts from cars . Its a round rubber for the drillingg machine . You get on the glue with the rotating rubber and it gets warm and rubbed away. 3M has it e.g. (Ihave it also :-) )

Mike

Cratex? Or Kratex, maybe. It's a rubber infused with an abrasive powder. Gunsmiths use them for polishing steel. Usually mountable on a spindle for use with a Dremel or similar tool.

I would think they wouldn't be abrasive enough for this purpose, though. Dunno.

jky

mike-stgt · 20 July 2008, 08:18

Hi again,
im am rebuilding my Avon SR5,4 at the moment. I use the rubber abbrassive from 3M to clean the tubes from glue of ols patches. It is working well, because the glue gets hot from the rotation and the rubber is abrading the glue then easy. The tubes are clean after and have no abrassive wear. With sanded tools it is not as easy to work for a beginner.

Mike