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01-02-2021, 09:05 PM #1
how to remove bad core and delaminated fiberglass using pneumatic air hammer
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01-02-2021, 09:06 PM #2
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makes the demolition job go faster
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01-02-2021, 09:07 PM #3
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you'll need 15 amp power supply, compressor and the air hammer tool
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01-02-2021, 09:14 PM #4The Historic Photo Master
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...air chisel...
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noli liked this post
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01-02-2021, 09:20 PM #5The Historic Photo Master
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...those plywood cores lasted more than enough years from day one, to serve the boat manufacturers purpose, warranty & costs in building a new boat... however they now decide to replace this core material, isn't going to last forever either...
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noli liked this post
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01-08-2021, 07:45 AM #6Screaming And Flying!
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That air hammer will crack the glass. I would NEVER do this on mine or anyone else's boat. Metal on glass is a big no-no.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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Rigaud liked this post
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01-09-2021, 12:29 AM #76000 RPM
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A chainsaw circlet-style cutterhead (Lancelot and competitors) on an angle grinder absolutely eats wet (or dry) plywood, might be a better way and less chance of cracking as Xstream indicates.
Matt
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XstreamVking liked this post
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01-09-2021, 05:06 AM #8
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01-09-2021, 05:18 AM #9Screaming And Flying!
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I have used the lancelot chainsaw blade like described by mattgreen above. Aggressive 24# discs and plastic/wood wedges. When in the biz I built an air powered 18''chainsaw to cut out foam and wood quickly. jm2cts. Everyone does this stuff their way. Air chisels work for you go for it.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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MattGreen liked this post
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01-09-2021, 06:06 AM #10
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I'm just trying to get as many experienced systems of removing delamination for educational purposes
thanks for your input Xstream
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01-09-2021, 06:25 AM #11Screaming And Flying!
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There is tool called a "gellcoat peeler" mainly designed for osmostic blister repairs. Some vids on you tube of it in action. It has some use as a grinder replacement.
Last edited by XstreamVking; 01-09-2021 at 06:28 AM.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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01-09-2021, 10:54 AM #126000 RPM
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Hi Noli, to build on your thread, and a bit of a clarification, removing delaminated wood core is a somewhat different question than removing delaminated glass. Either or both can happen, for different reasons. Xstream is on the mark as usual with his input. Gelcoat peelers are for planing away Fiberglass laminates and gel. They have been on the market for decades and can remove lots of material, but not super accessible to DIYers. They are marketed to professional boatyards, I think a person wanting to fix their own boat would struggle to get access to one at a reasonable price.
Another option for removing lots of Fiberglass at a time that is easier to get is a segmented diamond cutter head on a big angle grinder. These are marketed for bevelling and planing concrete. I have a 7” one on a 15 amp Makita grinder with an aftermarket cast aluminum guard/dust shroud. It absolutely mows down glass, like old stringer tabbing for example. A quick pass afterwards with 24/36 grit regular grinder disc and you’re good to go.
Matt
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01-10-2021, 02:08 PM #13
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Thanks Matt for the input...would a gelcoat peeler work for the same task the guy in the video was doing [ time 0:30 to 0:40 ] ?
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01-11-2021, 08:25 PM #14
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looks like Metan Marine has been using air chisel for more than a decade
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01-12-2021, 08:14 AM #15Screaming And Flying!
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Look closely at the 50 sec fwd mark. See the white marks on the green glass areas. That is where the chisel has fractured the glass. Look at the marks, same size as the chisel blade. They are in "get-er-done" mode. Not the way I did it, but if you want to make money it's the quickest way.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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