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Newbie, Stringer Replacement ???s

Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=14263
Printed Date: November-17-2024 at 7:49pm


Topic: Newbie, Stringer Replacement ???s
Posted By: TWG819
Subject: Newbie, Stringer Replacement ???s
Date Posted: July-01-2009 at 9:36pm
Ok, I have been reading this site for help with my upcoming stringer replacement. Lots of useful tips/tricks for me. Using Skibum's(I believe) website and Lance's pictorial for reference on wood floor, Thanks.

Douglas Fir for the primaries, pine for the secondaries, and untreated 3/4" plywood with CPES and epoxy resin for the floor. Also, will use the 4lb foam. These decisions seem to be discussed to no end. Like the fillet, 2/4/8 method for glassing stringers.

Question 1) Ballpark how much epoxy resin, 10 gallons good starting point. I have seen numbers from 4-20 gallons. 5 layers on the floor seems to be a satisfactory amount.

Question 2) Stringers with resin only, even the 2/4/8 cloth will not cover the entire stringer. Should I glass each side, glass from hull on one side to the other to completely enclose stringer.

Question 3) Want to use epoxy/filler to seal edge between hull and floor then lay a solid sheet (per side) of 10oz glass from rear/front and hull/bilge. Good/Bad idea. Does the hull seam or seam at floor and stringer need more glass. 3M 5200 seems to be the prefered caulk for this.

Any pointers would be appreciated. I am completely new to this, but have 2 months before school starts and about 12 days of vacation not counting weekends.





Replies:
Posted By: critter
Date Posted: July-01-2009 at 11:57pm
Originally posted by TWG819 TWG819 wrote:


Good luck with the project and you will get lots of help from this site.. My comments are inline.

Question 1) Ballpark how much epoxy resin, 10 gallons good starting point. I have seen numbers from 4-20 gallons. 5 layers on the floor seems to be a satisfactory amount.

I used 11 gallons on my Barracuda. But that was with a 3/4 plywood floor that was epoxied. I did not put 5 layers over the plywood floor.
I did fill and glass the gap at the hull and glass the floor to the Sringers.

Question 2) Stringers with resin only, even the 2/4/8 cloth will not cover the entire stringer. Should I glass each side, glass from hull on one side to the other to completely enclose stringer.

I used the 2/4/8 cloth and then clothed each side and then biaxial from hull over stringer to hull to completely enclose the stringer.

Question 3) Want to use epoxy/filler to seal edge between hull and floor then lay a solid sheet (per side) of 10oz glass from rear/front and hull/bilge. Good/Bad idea. Does the hull seam or seam at floor and stringer need more glass. 3M 5200 seems to be the prefered caulk for this.

I only used 5200 when I used a screw and then used resin over that. I tried to use resin and glass where possible.



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1980 Ski Nautique
1966 Barracuda



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