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Post by joker64 on Apr 19, 2013 17:35:55 GMT
I have been looking at the paint shaver for sometime, but only recently came across a video of it being used on a curved surface, and it seems to be doing pretty good. There is a European version that I am looking at. Keeping fingers crossed.
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dodo
New Member
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Post by dodo on Apr 24, 2013 12:24:21 GMT
sailbleu, Had to go reread the original, and yes, it appears as if the AF is already off, so the soda blasting will/would not do anything joker64. The final part will be literally sanding at this stage, opening all the blisters and letting drain for some period of time, depending upon the temps, humidity etc, then rebuilding everything back up. I personally have not heard of a gelplane, need to look that one up later today. could be an interesting tool. I wonder if one could rent one locally at a rental yard of some sort. I can rent 7-10" disc sanders with vacuum attachment if one does not want to buy one, or potentially ruin there own! Marty
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dodo
New Member
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Post by dodo on Apr 24, 2013 12:29:20 GMT
Hi, The Gelplane is awesome. I literally enjoyed the peeling. You can use a homemade Hotvac to accelerate the drying time and, above all, to get rid of the hydrolysis products (Propylene Glycol and Styrene) which appear to be the culprits of "osmosis". www.trans-ocean.eu/Forum/zumTOForum/tabid/166/aft/629/Default.aspxRegards, Dodo
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Post by MalcolmP on Apr 24, 2013 18:22:32 GMT
For those (unlike Zanshin and I guess Sailbleu) whose German is as bad as mine there is a English auto-translate at: bit.ly/YRaPBQLooks a really good tip for those with a bit of technical know-how
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Post by Zanshin on Apr 25, 2013 10:49:47 GMT
I was surprised how good the Google translation was; apart from a few technical terms that weren't translated correctly, it is understandable. I didn't know that the goal was to vacuum away the styrene and other chemicals in addition to the water.
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Post by electricmonk on Apr 28, 2013 10:26:22 GMT
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Post by joker64 on Jun 2, 2013 11:31:14 GMT
Update: Ok, back to the boat to strip the gelcoat / epoxy layers. We ultimately bought a Paint Shaver Pro copy in Italy. We paid a discount price of 580 Euro. It had two sets of blades. PhotosOn a scale of 1-10 I give it a 5, and only because due to our persistance we got the job done. As it isn't good on concave surfaces, we had a bit of work to do anyway with the angle grinder fitted with a 60 grit sanding disc. In total it took 2 men 4 days of work. We found some interesting things once we had all the old stuff off. 1. Whoever applied the epoxy failed to do so where the boat supports were at the time. Nice. 2. I found a screw affixing the interior that extended to the Matt. 3. It appears that perhaps the bow thruster was added after market, the holes made too far forward, and thus filled over, and re-drilled further aft. Again.....nice. 4. It appears to have a LOT of voids between the matt and the first rovings (if I am writing the word correctly). I will try to post a video where as I grind the matt away on an area showing a lighter color, the resin starts to fall away revealing a void. If I removed all of these, I would have to remove everything down to the first layer of rovings. Sorry to just place a link to the dropbox folder, but if anyone wants to see they can see all there including the work with the stripper. On one of the last video's one can see a strange green 'vein' running fore to aft under the roving. It is strange. It almost appears that this boat was started in the mold on a friday, they got as far as the matt, let it dry, and started again on Monday....what do I know, but there doesn't appear to be a good bond between the matt and the roving. Now, the plan is to use a epoxy / filler system, and hopefully followed off by a copper coat (homemade according to the receipe on a previous post). Still more work to do. I am thinking that since some 'experts' say that actual fiber glass doesn't hold water, but the matt and possibly the gelcoat, and seeing that we have remove almost all of that.......how much drying might be needed? This visit, I noticed what appears to be oily residue escaping through what matt has remained. However, to touch it doesn't seem oily. We pressure washed it, again, and will see in the next few weeks if there is any change. As always, if anyone sees anything in my pics or videos that I haven't addressed, or that you think of importance please let me know. Steve
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Post by MalcolmP on Jun 2, 2013 17:32:07 GMT
Glad to hear that you are making progress, despite the unpleasant surprises
Do let us know your dropbox link for the images
Malcolm
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Post by joker64 on Jun 3, 2013 8:02:37 GMT
Glad to hear that you are making progress, despite the unpleasant surprises Do let us know your dropbox link for the images Malcolm I tried to put the link in my previous post, but as I haven't done this before.....I'll try again. DropboxClick on the word 'Dropbox', and hopefully it'll take you to a list of phots and videos.
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Post by Don Reaves on Jun 3, 2013 9:40:05 GMT
The link works very nicely.
Don
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