OK so I am starting to think again about the amount of materials I will need. I want to ensure I have enough materials to finish, but not so much left over for a second boat.....or do I?
I started out with some measurements.
First some ground rules.
All measurements were made in Inches.
I have included extra for tabbing where needed.
I will have to find the area (L x W) to find the Square Inches needed.
When I buy the CSM/1708 I need to know the Square Yards (SQ IN / 1300).
For Resin needs I have found a couple different formulas.
1708 Biax ... 1 Gallon wets out 4 square yards
1.5 OZ MAT = 1 Gallon covers 4.2 square yds or.... for 50" CSM - Need approximately 32oz resin per yard (there are ~150 oz of resin in a Gallon)
I will provide data for different areas of the repairs keeping CSM and 1708 separate, then provide a tally at the end.
Transom - I plan on 2 layers of CSM and 1 of 1708.
Area is 46? x 43? = 258 Sq In.1978 sq.in., times two faces?=3956sq.in.
CSM = 516 Sq In.
1708 = 258 Sq In.
Hull ? I need to replace the layer of glass that was above the balsa core I removed. Again I plan on 2 layers of CSM and 1 layer 1708.
Area is 46? x 205? = 9,430 Sq In. OK
CSM = 18,860 Sq In.
1708 = 9,430 Sq In.
Stringers (figured both as one, the boat isn't 33' lol)
Area is 20? x 400? = 8,000 Sq In. OK
Same 2 layers of CSM and 1 layer 1708.
CSM = 16,000 Sq In.
1708 = 8,000 Sq In. (I will be wrapping entire stringer + tabbing)
Bulkheads (3 ea) same 2 layers CSM and 1 layer 1708 ?
Area is 33? x 32? = 1,056 Sq In. x3 = 3,168 Sq In. OK
CSM = 7,128 Sq In.
1708 Tabbing = 1,584 Sq In. (8" tabbing)
Motor Mounts (2ea) same 2 layers CSM and 1 layer 1708?
Area is 15? x 38? = 570 Sq In. x2 = 1,140 Sq In. OK
CSM =2,280 Sq In.
1708 = 1,140 Sq In.
Deck - CSM on two sides 75? x 216? = 16,200 Sq In. x2 = 32,400 Sq In. OK
CSM = 64,800 Sq In.
Deck - 1708 Tabbing ? 12? x 432? = 5,184 Sq In.OK
Totals
CSM = 109,584 Sq In.
1708 = 25,596 Sq In.
Converted to Sq Yds.
CSM = 84 Sq Yds.
1708 = 20 Sq Yds.
Resin required using formulas above:
CSM = 18 - 20 Gallons
1708 = 5 Gallons
Earlier it was suggested by WoG that I could start out with 25 yards (1 Roll) of 1.5 oz CSM Chopped Strand Mat)
10 yds of 1708 Biaxial cloth and 15 Galons of Resin.
I want to trust Wood's estimate but after doing my own figures don't want to be too short.
Please help!