Re: blue water boats......ve resin ?
Hey oops, ever consider using a full blasting hood to do that grinding? I assume they have enough room for a respirator and would give you complete protection from the itchies.
Its got to be horrible on your back.
just a thought
drewp
lol.... drewp i dont know if you remember a few years back we were talking about grinding protection.....sgnt major, showed a pick of a full bio suit......well guess what?.
i got one !
. mine is more of a light rain suit....but it is ofically a bio suit. the pants have elastics around the ankles, and the coat is a one piece hoody style.
i wear 11 mil rubber gloves. tapped around the wrists to the suit. over that, i wear a cloth pair of coverals. over the hood, i wear a full beach towel with the ends wrapped around my neck. (this is basic neck protection in case a grinding disc flys apart)
then i wear a full face resporator. the really expencive kind that is also a lexan eye/face mask. fogging is not an issue as the breathing apperatus in side the mask, encapsulates the nose/ mouth like a standard resporator.
the guys at the shop laugh at me when they see me in the full outfit, and they joke that i look like im doing some mad experiments !!!
the full outfit is really hot to wear, and the plastic of the bio suit traps water in....so you sweat heavy...especially pressing the grinder against the hull.
but....i am so protected from glass dust. i dont itch......at all !....nothing in the bed,,,no worries about washing my clothes in the girls washing machine !
Are you done yet ? Why not? How goes it man. Just wondering if your plan is working out.
i was going to start another thread on something i made for this repair.......but first of all.....
the boat has taken an extraordinary amount of grinding.
this is due to the hand lamination.
the ortho resin seems to be de laminating in between every layer and is VERY brittle. the hull is approx one inch thick of multliple layers of .75 oz csm.
these layers are delaminating every where.
to properly repair the boat...i have to grind till i get to an area that is not de laminated.
so far the grinding has gone on 20 hours.
i actually pulled a huge chunk of fiberglass off the hull. 1/4 inch thick and 3 feet by 6 feet. this area de laminated from the roving material deeper in the hull.
there are parts of the hull that i can see the stringer bottoms and the foam.
ok......so.....to repair this......i have to re-bed the stringers from the bottom !
i cleaned the area....scuffed the inside of the glass with 80 grit best i could then shot acetone in the area.
this is where i needed a new type of "oops super dooper peanut butter"
so here it is......oops super dooper peanut butter v 5.2 pat pend
i catylised one liter of resin at 2% then i slowly mixed in 50% milled fibers/ thickining the resin. then i poured in 550 gr of 1/4 inch chopped fibers. and mixed that into the catylised resin. this gave me a very thick short strand paste....more like a thick putty with a perfect 45% resin to 55% glass ratio.
i smeared this up into the hull on each side of the stringers and down the underside of them.
i also used the putty to fill the void area where there was no glass.
this putty is exactally like the chopped material that comes out of a chopper gun during the manufacturing process of other hulls. (except for the milled fibers to thicken the resin which will make the putty better)
after that was in place i rolled a 1.5 oz mat over the putty...then a 1708 wrap over that (this is strictly in the void area and not over the hull)
this process patched the holes in the hull perfectly.
the heat from cure was huge.....so i opened the shop door to control the temp of the cure......when the glass area was starting to cool a little (coming off the back end of the cure) i heated the area with a propane heater keeping the heat up but not too hot.....just under 200 degrees. this will make the paste and layups very stiff and strong.
oh......i also took aquarium tubing before i put in the putty and placed the end of the tubing in any areas i saw that were void of foam. after the past got hard i injected 120 ccs of 2 part foam thru the aquarium tubing. and removed the tubing. i used a huge syringe to inject the foam
i have more grinding to do today so i can start another marathon glassing of the whole hull now that the holes are repaired.
as far as the peanut butter paste.....that stuff is really strong....i mean really strong....i was whacking it with a big hammer last night...only small pieces from rough edges came off...the core of the stuff was undamaged....im going to whip up some more and make a two foot section 1/3 inch thick (to simulate the thickness of a boat hull.....and test that for stregnth, but i was really impressed by last nights results.
at this point ....the hull is repaired to the point i could float the boat right now.. so the gellcoating phase will begin on saturday.
i think i will have this boat done ahead of schedule.
oh....by the way......the bayliner i just finished (another full re-keel/re gellcoat job) sold yesterday for 15 grand....it was an 05....really pretty boat. it came out great.
ok....gotta go back and grind and glass some more.....ill have more up dates on the putty and post a thread with the testing results....
cheers guys
oops
