Fiberglass Tips and repair materials
Here's a question I received on the web: Wayne,
We are redoing the interior deck of our boat as it had rotted. Have put down wood with water proofing on underneath and are ready to fiberglass over it. Can you give us some idea what we should do and what problems we might encounter. ThanksResins, cloth, and other materials
Here's the answer June, 2000 First, there's a million and two problems associated with fiberglassing, and that's not counting the mess or wasted material it'll take to get friendly with it...........BUT, it ain't all that bad.
I would check out a book at the library to use as a guideline; then my couple tips would be to fill all voids and uneven areas with a resin based filler containing strands of fiberglass. After that sets and is sanded to suit you, place a layer of light fiberglass cloth over a coat of wet resin (with hardener added; but not too much). Use more prepared wet resin RIGHT AWAY and a brush & squeege to spread, smooth, and remove air bubbles etc. That whole mess is gonna harden real Quick...so hurry! Get it good enough to please you cause mistakes have to be grinded and or sanded out and re-done.
PRACTICE ON A SMALL AREA FIRST, even if it's only a piece of scrap wood. GOOD LUCK
O Yeah; throw away your brushes etc.(one-time use only) and probably last time-use for the clothes your wearing.
Another tip you might find useful if the top area of stringers are showing signs of deterioration or rot: They usually have a layer of fiberglass up both sides and across the top; after removing the old floor the stringers can be repaired by drilling or cutting access holes in areas of rot and after a drying out period use this product: Click here for Boat Life Git Rot You'll find that if you follow the directions it works extremely well and has been in use for years in the industry. The price may seem high, but take my word for it, the savings in time and aggravation trying to repair a stringer far out-weigh the cost. Git rot works on those areas that may be just starting to rot but if you have major rotted wood in stringers, transom, and even when replacing a rotten deck there is a new product that will save you more time and aggravation than anything I've seen before; It's Seacast Pourable Transom and it can be used to permanently replace/repair rotten stringers, transoms, and even replace decks and floors.
For now you'll have to click on the link and you'll see what I'm trying to describe but if you check back here soon I expect to have a product review/test completed. I'll cover the steps to follow as well as tell you about a few weekend projects Seacast would come in handy for.
For the best prices on your fiberglass supplies and related components, click here and find the products you need. West Marine
How Much Epoxy Do You Need?
1 gallon of resin wets out:
Material --- Sq Ft Coverage
.75 oz mat covers 64 square feet
1.5 oz mat covers 32 square feet
6 oz cloth covers 90 square feet - This is a very common weight. Figure 50 square feet of coverage with 2 top coats of additional epoxy to completely bury the cloth weave (three total coats of epoxy).
10 oz cloth covers 60 square feet
18 0z woven roving covers 40 square feet
24 oz woven roving covers 32 square feet
2415 bi-ply covers 16 square feet
After you get the hull and deck complete to your satisfaction of course you'll be in need of paints and finishes. The options are many and you can browse through the selections here: West Marine
If you have some more questions at this point as to what to use, and where, you can contact me or one of the manufacturers for additional info.
If you need to install a deck plate for access and future inspection Click here to view and/or purchase West Marine
One of the most trusted and experienced names in the restoration business is Eastwood. For the really custom and specialty finishes and restoration tools and supplies, click here to browse Eastwood.
Automotive restoration is their main product line but much of what you find there is applicable to boat and motor restoration and customization as well.
When you re-install consoles, seat-bases, access-covers, etc. it's a good idea to use 3M.5200.ADHESIVE.SEALANT.
If you had to remove your motor or anything else below the water-line, then use BOATLIFE.LIFE.CALK.
Click here to view and/or purchase. West Marine
I still have small circular impressions where they attached themselves prior to my scrapping. ANSWER YEP, and that's the reason everybody hates bottom painting. You can blast them off with some mediums other than sand and not harm your gelcoat.
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