Construction methods with plywood plywood is ideal for several construction methods.
Epoxy plywood mat in between.
We have more than four decades of experience in composite construction in marine aviation industrial applications.
If in doubt test the material using scrap wood to insure that it cannot be pulled off.
No amount of epoxy can change an exterior grade panel into one of marine grade.
It is compatible with epoxy even though it has mat with it.
You may want to entertain the idea of epoxy i use raka 900 medium.
Although most cloths will work with epoxy there are some that are not compatible.
Don t force the epoxy into the cloth which may trap air in the fabric and show through the clear finish.
The fiberglass cloth used in fiberglassing a typical plywood boat must be compatible with epoxy resin.
Apply enough epoxy to saturate the fabric and the wood below.
Features an inventory of polyester resin epoxy gel coat mat and cloth foam and the various tools to aid in any lamination project.
The 1708 is a 17 ounce 45 bias fabric with a 3 4 ounce chopped strand mat stitched to it.
Now let s go to our 207.
Again this is epoxy that is sold as a clear coating epoxy.
Wet out clarity of mat with epoxy varies somewhat with different suppliers but none of them wet out as clear as a good 4 oz or 6 oz fiberglass cloth.
And two or three layers of fiberglass cloth or mat between the two sheets of plywood before you cut to shape.
For gently curving or flat projects like cabin soles or plywood decks mat and epoxy should work fine.
Epoxy coating would be used on something that is plywood based construction that may be veneered inside and out so it has the appearance of traditional joinery but is very much a monocoque structure.
Knitted fabric is compatible with polyester vinyl ester and epoxy fiberglass resin.
Dip the brush in the epoxy and lay the epoxy on the surface with light even strokes.
Put a lot of weights on it to compress it while it cures.
Fiberglass mat should not be substituted for cloth.
The most common is stitch and glue construction where panels are cut to a designed shape and temporarily joined with wire or plastic ties.
It s thinner it s not as viscos.
The mat that is stitched to the fabric does not have a styrene binder like the regular chopped strand mat.
The fabric does not wet out perfectly clear with epoxy.
Make the transom a couple of inches over size all the way around.
Then you apply epoxy fillets and fiberglass tape to permanently join the structure in a rigid shape.