seacast transom - Page 3

McGillicuddy · #21 11-28-2008, 10:53 PM

jonesg, Congratulations! Interesting stuff. What's the boat, beam, transom height & thickness, and how many gallons did you use. Thanks.

jonesg · #22 11-30-2008, 08:20 AM

My boat isn't a seacraft, I have a 73 Chrysler Center console 20' . ended up joining here simply because of the level of expertise evident in the repair projects.

I needed 3 x 5 gal buckets of seacast but bought 2 instead to save $220, made up another 5 gals myself after checking the seacast out.
They package a lot of extra chopped fiber and I still have a load of it leftover so no need to buy more.

This book by John Wills has lots of resin formulas to make up your own concoctions.
He was involved in discovering how to make polyester resin catalyse at room temps 50 yrs ago.
For $16 its an interesting read even if you don't plan on making up your own mixes.
http://johnawills.com/indpu.html

McGillicuddy · #23 11-30-2008, 04:15 PM

Interesting reading to be sure. Finally, a chemistry lesson that I can take interest in applying

Thanks for the link.
Are you the author or how did you learn of these books.
Love to see pictures of the process you used, Seacraft or not. Cheers, -McGill

jonesg · #24 12-04-2008, 03:29 PM

No I'm not John Wills, I found his books on "aircraft spruce and supply" when I was ordering glass cloth.

I notice from reading the contents list from seacast it almost reads as if they don't want you to know whats really in it. It doesn't list DMA but it has to be in there or the resin simply will not work. NA will not work with BPO.

Seacast is a great product though, I wouldn't hesitate to recommend it, I just like making things myself.

The only occurance of cracking is some guy tried to make a jackplate from seacast, thats a misapplication methinks.

Will's book has some funny recipes, poor mans parting film can be made by dissolving old movie reels in acetone, thats how they used to make it and why it had a blue green tint.
Todays concoctions are tinted with dye to simulate the old method.

paragod · #25 12-12-2008, 12:54 AM

I used Seacast in my 30ft Scarab with 2-225 about 5 yrs ago it was our first try at it turmed out very good and still holding. The second 2 trys were Hydro Streams turned out very nice there is still a pile in the driveway I cant get off. It took 15 gals to do the Scarab.