How many layers?

[Evinrude Boater]

I've glassed-in the ribs and stringer in my 16' flat bottom runabout with two layers of 6oz cloth and epoxy resin. The cloth runs continuously over each piece and extends 2"-4" on the hull. It seams quite rigid now but I'm not sure how many layers of glass it should have. Also, should I apply another coat of resin over the cured lamination to make sure the fiber is fully sealed?

 

[crab bait]

Re: How many layers?

hard to say.. <br /><br />i'd a used 'biaxial' cloth ,myself..<br />6 oz is pretty thin..<br /><br />ofcoarse, i'm not a big fan of 'glassin' in' stuff.. if'n it's glued down good to hull ,, an 2 part floation foam added ,, an the floor glued down good to ribs byway of a peanut butter epoxy mix .. then what's all the 'glassin' in ' for..?? anyway..<br /><br />an NO,, do not add extra epoxy to the cloth<br />..!! it'll make for a heavy an brittle cloth joint..

 

[Evinrude Boater]

Re: How many layers?

Yeah, I did use biaxial cloth on the front three ribs with another layer of 6oz cloth. I figured they take all the waves...and I ran out of biaxial at that point. The back five ribs have just 6oz cloth. I'm planning to foam under the floor in the spring when it warms up. Anything's better than how they originally built this boat.

 

[prockvoan]

Re: How many layers?

Foam filling the hole after the floor has been install will lock in all your ribs,floor and bottom of the boat together.Normaly when glassing in ribs,one would use up to 24 oz cloth with most boat builders using 18 oz biaxial cloth.But you should be fine.