Marine grade plywood means the glue which bonds the layers is water resistant which is not the same as pressure treated wood (or plywood) which...
If it is a polyethylene buoy then you could cut it in half (or just cut a big hole) then fill it with block styrofoam then weld it back together....
Looking at the photo I would guess that this foam core is not meant to be used for vacuum infusion. The grooves are there so it can be used on...
Pericles I am sure Sunseeker did a good job but from the article you sent it does not show any application where it was used to replace a cored...
Kovaceski Here is a summary of the terminology that I think is normally used. -Resin Injection Molding is used to make plastic parts using...
David Pascoe, has written a number of articles about the problems associated with the incorrect uses of laminated cores in boat building, His work...
I think Westlawn has a great product. Other educational institution should take note. Not everyone can take time off to attend full time...
Kovaceski I guess I didn't really answer your original question. I will try to give some info assuming what you are looking for is Vacuum...
You could make a boat using HDPE but since it is a thermoplastic material it will require heat to form the shape and that means expensive tooling....
Kovaceski I think what you are looking for is Vaccum infusion instead of RTM. With RTM you need 2 molds (male and female). This is good if you...
there is some good information in the book "The Elements of Boat Strength" by Dave Gerr. There should be enough information in there to calculate...
