RE: 50" Project PLUG build & Fiberglass Molding  
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RE: 50" Project PLUG build & Fiberglass Molding - 3/31/2008 4:31:19 PM   
martno1fan



Posts: 7427
Joined: 1/20/2005
From: blackpool, UNITED KINGDOM
Status: online 		I agree with Mike if your planning on using the mould more than a cpl of times id make the best mould you can .Regarding the brush marks maybe one of those sponge type brushes would work? not sure as ive never even used one for paint just an idea maybe?.Hey mate if my name goes to the top that would be a first haha just kidding mate its no biggie i was just messing.Good luck with it.
Mart

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       Post #: 51

RE: 50" Project PLUG build & Fiberglass Molding - 3/31/2008 4:44:41 PM   
mike the snake


 

Posts: 122
Joined: 2/2/2008
From: santa rosa, CA, USA
Status: offline 		To edit my last post;

The end-grain allows the resins to kick off WITHOUT evrything getting too hot.

Molds are great, if taken care of they pay for themselves quickly. They also bring a premium if really nice.

Brushing the gelcoat on it was impossible for me to get ALL the little thin areas in one coat. I'd do 2 coats to be sure of complete coverage. It's not a huge deal if you plan on painting the boat.

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       Post #: 52

RE: 50" Project PLUG build & Fiberglass Molding - 3/31/2008 4:47:11 PM   
Dreamin Hemi



Posts: 1174
Joined: 11/20/2004
From: Milton, DE, USA
Status: offline 		You've made your point Mart, you're a top man! I personally don't mind the bottom.....anyways, just to keep you smiling, Your now #1.

If I spend any more money on this project, I may be headed towards my 2'nd divorce! Already over budget on this project. Just layers of glass is what I intend to use since I have pleanty already in the shop. If it makes 3-5 hulls, I'll be very happy, heck, just give me one good hull, that was my origional intention before I started getting emails for possible requests. If I start making several, I WILL infact make a carbon reinforced mold from this plug as suggested.

Don't have the pictures, but I noticed this morning the plug had a minor flaw. While picking the imperfection over, a 1" section of gelcoat just smeared away! I sprayed over a very slight area of bare wood that was filled with tree sap. Apparantly the resins in the gelcoat reacted with the sap softening the sap and never hardened! Had to scrape that area out and apply epoxy to fill the void. Sanded to a blended smooth appearance, reprimed, and just laid more gelcoat. Hopefully I'll be able to wetsand that area this afternoon once cured and start setting up for the molding process.

< Message edited by Dreamin Hemi -- 3/31/2008 4:48:41 PM >

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       Post #: 53

RE: 50" Project PLUG build & Fiberglass Molding - 3/31/2008 4:51:01 PM   
Dreamin Hemi



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quote:

ORIGINAL: mike the snake



Brushing the gelcoat on it was impossible for me to get ALL the little thin areas in one coat. I'd do 2 coats to be sure of complete coverage. It's not a huge deal if you plan on painting the boat.

I think I will be applying 2 good coats of gelcoat with a brush just for that reason. Probably 2 heavy coats for the mold, what do you think?


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RE: 50" Project PLUG build & Fiberglass Molding - 3/31/2008 4:56:05 PM   
martno1fan



Posts: 7427
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From: blackpool, UNITED KINGDOM
Status: online 		just dont over do the gelcoat on the actual hull it cracks easy and looks like crap .

ps thanks for making me top man for the day

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       Post #: 55

RE: 50" Project PLUG build & Fiberglass Molding - 3/31/2008 4:58:51 PM   
Dreamin Hemi



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quote:

ORIGINAL: martno1fan

just dont over do the gelcoat on the actual hull it cracks easy and looks like crap .

ps thanks for making me top man for the day

Are you talking about the gel used to make the mold, or the gel that's applied TO a mold for making a fiberglass hull?

ps, no problem!

< Message edited by Dreamin Hemi -- 3/31/2008 4:59:30 PM >

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       Post #: 56

RE: 50" Project PLUG build & Fiberglass Molding - 3/31/2008 5:06:04 PM   
martno1fan



Posts: 7427
Joined: 1/20/2005
From: blackpool, UNITED KINGDOM
Status: online 		I was thinking about the making of the hulls themselves as you see alot of real nice gelcoated finnishes and they last five minuites when been bounced arround at 40 mph or more .I was told thinner gelcoat is better than thick as its less likeley to crack.

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       Post #: 57

RE: 50" Project PLUG build & Fiberglass Molding - 3/31/2008 5:10:39 PM   
Dreamin Hemi



Posts: 1174
Joined: 11/20/2004
From: Milton, DE, USA
Status: offline 		Makes sence to me! I'll keep that in mind....still will brush on the 2 coats I plan to do for my hulls, same goes for my mold.

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       Post #: 58

RE: 50" Project PLUG build & Fiberglass Molding - 3/31/2008 5:54:46 PM   
mike the snake


 

Posts: 122
Joined: 2/2/2008
From: santa rosa, CA, USA
Status: offline 		My mold is made from gelcoat, but tooling resin, or even just epoxy resin can be used to make the mold surface.

I brushed the gelcoat into my mold making a part.

My gelcoat mold surface seems to have held up OK over time.

(in reply to Dreamin Hemi)
       Post #: 59

RE: 50" Project PLUG build & Fiberglass Molding - 3/31/2008 5:58:43 PM   
Dreamin Hemi



Posts: 1174
Joined: 11/20/2004
From: Milton, DE, USA
Status: offline 		Good! I'm just using finishing gelcoat for my mold surface, two brushed laters should work.

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RE: 50" Project PLUG build & Fiberglass Molding - 4/5/2008 7:14:31 PM   
Dreamin Hemi



Posts: 1174
Joined: 11/20/2004
From: Milton, DE, USA
Status: offline 		In case you were wondering, haven't abandoned the build, just waiting for supplies to ship. Should be here middle of next week. In the meantime, have time to make this hull perfectly smooth. More wetsanding and buffing was required, but the bottom hull is finally ready for molding!
The flanges will be trimmed down and evened out once the two halves are joined and glassed together

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< Message edited by Dreamin Hemi -- 4/5/2008 7:22:32 PM >

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       Post #: 61

RE: 50" Project PLUG build & Fiberglass Molding - 4/6/2008 4:44:01 PM   
martno1fan



Posts: 7427
Joined: 1/20/2005
From: blackpool, UNITED KINGDOM
Status: online 		Looks really good the finnish looks awesome good luck with the mould and keep the pics coming.
mart

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       Post #: 62

RE: 50" Project PLUG build & Fiberglass Molding - 4/6/2008 6:03:32 PM   
Dreamin Hemi



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quote:

ORIGINAL: Dreamin Hemi

Good! I'm just using finishing gelcoat for my mold surface, two brushed laters should work.

Update....found a good suplier that sold me tooling gelcoat (orange) that I'm going to use for my mold surfaces. Still debating whether to apply with a foam brush, or spray.

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RE: 50" Project PLUG build & Fiberglass Molding - 4/6/2008 10:38:29 PM   
Dreamin Hemi



Posts: 1174
Joined: 11/20/2004
From: Milton, DE, USA
Status: offline 		PHOTOSHOP FOLKS...........NEED YA!!

Anybody good at photoshop???

I'm posting these pictires in hopes someone could help design the top deck for this hull. Could be a team effort here! I really do like the look of the canopy there, and want to base my design off of that. Any suggestions will be greatly appreciated! Good luck, and hopefully let's see all these great design possibilities!

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