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This is admittedly not a 27-specific question but I figure there would be someone in our ranks who would have an answer. My Avon Redcrest has had a small panel detach from the exterior of the bow chamber <img src="emoticons/icon_frown.gif">it's used to hold a rod which supports a cover). The recommended procedure is to use methyl ethyl ketone (MEK) to clean the two parts before reattaching with the appropriate cement. MEK evidently is not available here in anything smaller than a litre, which seems excessive given that I'll likely only need a teaspoonful or two. My local Home Hardware (which knew of MEK, unlike Home Depot and Canadian Tire!) suggests using acetone to clean the Hypalon and the detached panel and then eliminate any acetone "residue" with methyl alcohol. Thanks, yet again, for any advice.
Ken Pole
Santiva
Ottawa
Ken Pole, Ottawa
1975 Mark III Santiva
Offline
Isn't MEK (methyl ethyl keytone) the standard catalyst used with polyester resin (I.e. fibreglass). So can't you buy small tubes in the autobody/fibreglass repair area of CTC or Home Depot etc. If I'm not mistaken this stuff is pretty dangerous around your eyes, just the smallest drop in your eye can cause blindness. Please be very careful.
Chris: thanks for the suggestion about where to acquire MEK in small quantities. Unworry about the risk; I routinely wear a full-face respirator, elbow-length gloves and coveralls when using any of this stuff. Cheers.
Ken Pole
Santiva
Ottawa
Ken Pole, Ottawa
1975 Mark III Santiva
Offline
Ken,
I used MEK as a solvent for a summer job spraying industrial coatings between college semesters. Take a lot of precautions with this stuff, only use it outside. I'm beginning the process of rebuilding a hypalon (Avon) dingy too and have found some of the best information is on the rafting sites. Hypalon is pretty tough stuff, but you may want to try alcohol first and work your way up to the really nasty stuff. Some of the sites suggest both acetone and toluene (Berrymans chemtool is mostly toluene I believe.) Anyway let us know what you find out. thanks
Mike M
SV Pura Vida
#375
Galveston Bay
Mike M
SV Wind Horse
#375
Galveston, Tx
Offline
Caution-----MEK the solvent you are talking about------is not to be confused with MEKP (peroxide)---the stuff you use to "harden" polyester resin. Different animals. MEK is a small pussy cat. MEKP is a roaring lion!!!!! )relatively speaking.Dave Tinder
DAWN BREAKER Mk3
Ft Myers
Sunny, 70 degree weather, N wind at 10, I'm not sailing I'm fixing a dingy. This morning I've experimented with most of the solvents discussed in this thread (except the catalyst) and found that my preferred way to remove old adhesive from hypalon is with a hair dryer. There is no residue and it works faster. The only catch is that the hair dryer has to be on its highest setting. I'm using two so that one can cool down while the other is in use. If you try it let me know how it works for you.
Mike M
SV Pura Vida
#375
Galveston Bay
Mike M
SV Wind Horse
#375
Galveston, Tx
Offline
Finally! I took Home Hardware's advice and used acetone to remove the lingering residue of the old adhesive and then methyl alcohol to really clean the area before reaffixing a Hypalon pocket that holds the batten that supports the Avon's spray hood. I opted to stay away from MEK because (a) I'm not familiar with it and (b) I couldn't get it a small quantity. Hope all you warm-water sailors enjoy the winter!
Ken Pole
Santiva
Ottawa
Ken Pole, Ottawa
1975 Mark III Santiva
Offline
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