Cheapest (safest too) way to glass???

twintrades

Petty Officer 1st Class
Joined
May 7, 2008
Messages
305
I was wondering After the floor go's down How many layers of glass do i need?

weight per sqr yard is 8.21 oz add says its listed "F72 Satin finish"

I would use it in 8' peices for my 12' length. Could i get by with just one layer or should i do 2 layers?? ( its 50'' wide Bopat is 60'')

And approx. How many gallons of poly resin??

How far up the sides should the floor glass go also?

Lastly how many layers of glass should there be on the inside of the transom? Currently the transom has nothing on it ( rotten wood right now i have to make a new one.) Im leaving the outside glass alone its not broken at all.

Sorry for all the questions But i have alot and you guys rock!!
Im trying to be as cheap as i can this year so we can use the boat. Then next spring /summer i thought id sand off the paint and put more glass down.
would that work?

Sucks not having much money and A whole lotta get up and go.:(
 

Driven1

Petty Officer 2nd Class
Joined
Jul 13, 2008
Messages
157
Re: Cheapest (safest too) way to glass???

Cheapest way to go is polyurethane resin, about 35 bucks a gal. Use fiberglass matting for them. Doesn't have to be really heavy stuff.The amount of resin you'll need depends on the total surface area you're covering. Rule of thumb is about double the amount of resin when using mat. In your case probably 2 to 3 gals should do it I would think.

The purpose of the glass on the floor and transom is mostly for sealing purposes to keep water from getting into the wood. So to do the job only a single layer of glass is necessary on both (a lot of manufacturers never even bothered with it, hence rotted stringers and transoms). For added longevity to the floor, 2 layers are recommended. 2 to 4 layers around the edges for added strength extending up the hull 2 to 3" from the floor.

If you're going to put more glass down later, I'd recommend not bothering with the paint until you're actually ready for it. It'll save you time and money later. Paint's purely cosmetic. Not functional.

Almost forgot. On the inside of the transom you'll want to make the edges fairly beefy using mat and woven. About 4 layers total should do it. This is where all of the force from the motor is transferred to the hull so you want to be sure the corners can take it.

Enjoy!
 

twintrades

Petty Officer 1st Class
Joined
May 7, 2008
Messages
305
Re: Cheapest (safest too) way to glass???

What do you use to fix the transom wood to the existing glass? Do you put a layer of glass between the new transom board and the existing transom glass?? ( to hold the transom in place while you glass the sides)

And when laying up glass for the sides do you go 4'' boath ways??
And should i go Matt/woven cloth/matt/wovencloth/matt?

Time for work. ( allways gets in the way of fun)
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: Cheapest (safest too) way to glass???

i forgot what kind of boat you are doing.

if its an ob/small transom....glass it to the hull...then clamp it.

if its a larger transom....you need to "squeeze" the thing togeather....really freekin tight !....so u use the thru hull holes allready in the hull....

see hull extension in progress for this....it has detailed pics......

and your layup schedu;e looks good depending on what thickness of woven cloth you are using......


as for the deck....one layer wont do if you are just painting over it....i highly suggest 8 oz total....more if you want.....even if you are carpeting....a matt, woven, matt shedule is good....as it is an area prone to wear thru or de lam with shifting deck
 
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