Gelcoat or Fiberglass repair?

Yacht Dr.

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Re: Gelcoat or Fiberglass repair?

Awesome! Thanks for all your help Doc! Can you tell me what materials I might need to do this? I would like to have them on hand before start the grinding.

You mean like a shopping list of stuff ? .. wow..tall order there m8 :) ... Hmm..lets see here...

1. Die grinder with a Rasp bit ( I like the Rasps or carbides better then the stone bit .. less fine dust flyin ). No need for a 4.5" grinder. A Dremel could work..but to buy the right bit you could have bought a HF Die grinder at the same cost.

2. Resins/fillers/gelcoat.

2a. I am going to assume you have a newer boat due to the pictures ( nice shine and multi-piece-bow roller ) try to get the factory gelcoat. Post your year/make/model and I think I could help on the Gel code.

2b. I would normally recommend making your own fillers with resin and cabosil/glass .. but from your limited repair I think it would be more economical to just buy "pre made fillers". Get some glass hair filler and some glaze filler in the smallest amount possible.

3. Box of latex "powdered" gloves ( helps to quick change gloves when needed ).

4. Plastic spreaders ( you can cut these thing to any shape and size ).

5. Multipack of sand paper ( 40 grit should be in there..up to 120 if possible ). The rest of the sand paper can be bought one sheet at a time at your local autobody shop supplier.

6. 1 Qt. of acetone should be all you need. But if 2 Qts are the same price as a Gal .. pick up the Gal size.

7. Roll of paper towels ( and a few cut up cotton t-shirts for final wipedown ).

8. A preval or 2 if you plan on Spraying the repair.

9. Buff it now or later .. you can just sand it down to like 1000 grit and leave it till your next rub out..or buff it out now ( It would be nice to borrow a buffer from a friend ..its only gonna take you 5 min to buff out to shine ..kinda sucks to dump 50 bucks on a cheap buffer for 5 min lol ).

I can think of more sundries ..but for now this will do..

Would you recommend a small grinder or a bigger 7" disc grinder? I'm thinking a little small drill tip size grinder or even hand sanding may be the best for the smaller areas?

I would never hand sand for repair prep .. just me though. Use the Die grinder I suggested above.

how do you recommend I double check the bow eye, as well as reinforce it?

I would Remove your bow eye before even starting the glass repairs. Your in for 10 min gettin the eye out..and probably 10 min ( call it 20 min for 2 guys at 10 min each ) to reinstall the eye with fender washers or a backing plate. Cheap labor for a secure tow feature dont you think :) .. You will save that in time alone trying to work around that thing.. get it out of there.

More pics the better..

YD.

PS. I do not agree suggesting an Iboats member to just ONE contributor .. please Anyone speak up at Anytime to put your comments/Ideas up on a thread.
 

tipitina

Petty Officer 2nd Class
Joined
Apr 15, 2004
Messages
133
Re: Gelcoat or Fiberglass repair?

You mean like a shopping list of stuff ? .. wow..tall order there m8 :) ... Hmm..lets see here...

1. Die grinder with a Rasp bit ( I like the Rasps or carbides better then the stone bit .. less fine dust flyin ). No need for a 4.5" grinder. A Dremel could work..but to buy the right bit you could have bought a HF Die grinder at the same cost..

I have a Makita 9227 rotary, would this be overkill then I guess? I could always use another tool ;)

2. Resins/fillers/gelcoat.

2a. I am going to assume you have a newer boat due to the pictures ( nice shine and multi-piece-bow roller ) try to get the factory gelcoat. Post your year/make/model and I think I could help on the Gel code...

Boat is a 2000 Fishmaster 2400 produced by Polar/Dynasty.

2b. I would normally recommend making your own fillers with resin and cabosil/glass .. but from your limited repair I think it would be more economical to just buy "pre made fillers". Get some glass hair filler and some glaze filler in the smallest amount possible...
Would it be extremely more economical? If not, I would consider getting the necessary materials to make my own. I'm considering making some other projects if this one turns out decent :)

8. A preval or 2 if you plan on Spraying the repair...

What is this? Would a brush work or is spraying the preferred method?

9. Buff it now or later .. you can just sand it down to like 1000 grit and leave it till your next rub out..or buff it out now ( It would be nice to borrow a buffer from a friend ..its only gonna take you 5 min to buff out to shine ..kinda sucks to dump 50 bucks on a cheap buffer for 5 min lol )...

I have the makita as mentioned above ;)



I would Remove your bow eye before even starting the glass repairs. Your in for 10 min gettin the eye out..and probably 10 min ( call it 20 min for 2 guys at 10 min each ) to reinstall the eye with fender washers or a backing plate. Cheap labor for a secure tow feature dont you think :) .. You will save that in time alone trying to work around that thing.. get it out of there...

This sounds like a very good idea. I also 100% agree with reinforcing the eye. Would fender washers alone work, or should I try to fabricate/find a backing plate?

More pics the better....

Will definitely update with the pics!!!


Mr. Awesome!


PS. I do not agree suggesting an Iboats member to just ONE contributor .. please Anyone speak up at Anytime to put your comments/Ideas up on a thread.

You boys play nice! And I would like as much input as possible, although, I truly appreciate the shove iin the right direction and the motivation OOOOPSTER! Thanks a bunch for that!
 

tipitina

Petty Officer 2nd Class
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Apr 15, 2004
Messages
133
Re: Gelcoat or Fiberglass repair?

I was afraid how that quoted text would turn out.... not too shabby :)
 

tipitina

Petty Officer 2nd Class
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Apr 15, 2004
Messages
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Re: Gelcoat or Fiberglass repair?

Found the preval, is this preferred? I have access to a compressor and gun as well, but was planning to just brush the gel coat. Open to suggestions for the best method though! Hope to start grinding this week.
 

Yacht Dr.

Vice Admiral
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Messages
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Re: Gelcoat or Fiberglass repair?

I have a Makita 9227 rotary, would this be overkill then I guess? I could always use another tool ;)

Yea..um..no on the 9227 lol ( thats the one you want for buffing ;) ).
You want something like this die grinder http://www.harborfreight.com/electr...-782A-E011-B31E-001B2163195C&mr:referralID=NA


Boat is a 2000 Fishmaster 2400 produced by Polar/Dynasty.

Sorry.. I dont have any color codes for that..


Would it be extremely more economical? If not, I would consider getting the necessary materials to make my own. I'm considering making some other projects if this one turns out decent :)

Do some price shopping ... Your gonna need some resin/1.5oz mat/cabosil and gelcoat for the repair.
Or your gonna need a small can of fiberglass putty/glazing putty ( bondo basically ) and gelcoat.


What is this? Would a brush work or is spraying the preferred method?

Personally I like to encapsulate my repairs with gel. For your repair you should end the repair with spraying. You might be able to Brush coat some gel to help with the fairing..but I think its a waste of money. Gelcoat should be the Last thing to apply on a repair. Preval is disposable .. so less cost in clean up.


I have the makita as mentioned above ;)

Yup :)


This sounds like a very good idea. I also 100% agree with reinforcing the eye. Would fender washers alone work, or should I try to fabricate/find a backing plate?

Backing plates are allways the best ;)

YD.
 

tipitina

Petty Officer 2nd Class
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Messages
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Re: Gelcoat or Fiberglass repair?

What type of resin would be best? I was thinking epoch but read it doesn't work well with gelcoat. Also, how would you recommend fabbing up the backing plate? Just like a 1/8" piece of aluminum, bend to shape and attach with washers and nuts? Thanks again!
 

Yacht Dr.

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Re: Gelcoat or Fiberglass repair?

I use Laminating resin ( not General Purpose ) for Most of my repairs.

Backing plate .. I like to use Stainless if at all possible. It can be a strip of SS bedded in the bow stem.

YD.
 

tipitina

Petty Officer 2nd Class
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Messages
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Re: Gelcoat or Fiberglass repair?

I think I found some good stainless in 12"x12" size which seems to me would make a nice solid backing. It's available in sizes up to .120" in thickness. Is this too thick? Too thin?

Also, is the laminating resin poly or epoxy? I have found both and tons of conflicting information as to which has better adhesiveness with gelcoat. I am looking for some local, but if not, I'm thinking maybe U.S. Composites? I'm open for suggestion here, and feel free to PM if you don't want to step on any toes.

Sorry for all the questions :( So much conflicting info out there..
 

tipitina

Petty Officer 2nd Class
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Re: Gelcoat or Fiberglass repair?

So I've found something... Evercoat laminating polyester resin?

I also see evercoat gelcoat. This any good? Wax or no-wax?
 

Yacht Dr.

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Re: Gelcoat or Fiberglass repair?

I would suggest you remove All the hardware in the area .. Grind out the bad glass..get back with some pics please.

All you need is Laminating resin from a reputable supplier ( Yes polyester is what you would use normally ).

Get the grind out and post some pics m8 :) ..

YD.
 

tipitina

Petty Officer 2nd Class
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Re: Gelcoat or Fiberglass repair?

YD, you still there? Between weather, work, and life in general, I hadn't been able to tackle this, but I'm going to try it this week and next in my free time, as the weather appears to be forecasted pretty nice! I was going to order some of the resin, and supplies tonight. Just wanna make sure your still around once I start grinding
 

Yacht Dr.

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Re: Gelcoat or Fiberglass repair?

Yes mate .. Im still here :) ..

So are all the other Iboat members :D

Get them pics up so we can help you on your next step(s) .. :) ..

YD.
 

tipitina

Petty Officer 2nd Class
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Re: Gelcoat or Fiberglass repair?

Alright! Will have pics up on Friday. In the meantime, I plan to start ordering up the supplies. I keep reading that you must use epoxy to stick to already cured poly, but when I looked at US Composites site to order, they have a "435" poly resin that says it's great for repairs. Since this is in fact above the waterline, I think poly would be "ok," but this is also an important strutural area when trailering, so I want it strong. I am ordering a piece of stainless that I will fit for a backing plate, but I would really appreciate some insight as to which resin to get. There is TOO much info out there on this, and to be honest, I am overwhelmed and confused. I generally think I'm a pretty intelligent guy, but this is making me crazy!

Help on resin? I do plan to put a coat of gelcoat over the final repair after it's complete if that matters?

Thanks!!!
 

Woodonglass

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Re: Gelcoat or Fiberglass repair?

Yep, the 435 resin is what you want. Sand the surface as best you can, wash down with Acetone and glass away!!!!
 

tipitina

Petty Officer 2nd Class
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Re: Gelcoat or Fiberglass repair?

Sweet! Ordered today! Pics coming Friday morning.
 

Yacht Dr.

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Re: Gelcoat or Fiberglass repair?

Your good to go mate..

Any resin thats not out of a big box store is good :)

YD.
 

tipitina

Petty Officer 2nd Class
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Messages
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Re: Gelcoat or Fiberglass repair?

You guys are awesome! Know that the stuff is coming in, you've helped me go from "man I can't cut up the fron of my boat!," to "I got this, cause I got people!" Thanks Again!

Pics coming soon...
 

Yacht Dr.

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Messages
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Re: Gelcoat or Fiberglass repair?

You guys are awesome! Know that the stuff is coming in, you've helped me go from "man I can't cut up the fron of my boat!," to "I got this, cause I got people!" Thanks Again!

Pics coming soon...

I hope its not like starwars 7 soon :D ..

Gettim up .. PM Woodonglass if you need help man..

YD.
 

tipitina

Petty Officer 2nd Class
Joined
Apr 15, 2004
Messages
133
Re: Gelcoat or Fiberglass repair?

Trying! Have everything ready, just waiting on some cooperative weather! I don't have a covered area, so I need a dry day off... I love the rain, but I swear it's out to get me!
 
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