Can someone suggest a replacement for 3/4 inch plywood that can be cut and glued or sealed and that will hold up better to the marine enviroment. I have tried polyethelene (white plastic) but silicone will not hold.
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Starboard info
Starboard is good stuff, depending on what you want to use it for. From FAQ section of King Plastic Manufacturer's website: "What sealants and adhesives are recommended for King StarBoard? BoatLIFE® LifeCaulk® works well to replace old or worn caulking. Before caulking, the surface should be prepared by abrading it with medium-grit sandpaper, then cleaning it with acetone, toluene or alcohol. King StarBoard can be welded using special rods. Contact Plastic Welding Technolgies (www.pwtworld.com) for details. Adhesives have been used with some success, however King Plastic Corporation recommends using mechanical fasteners to ensure reliability."
Starboard is good stuff, depending on what you want to use it for. From FAQ section of King Plastic Manufacturer's website: "What sealants and adhesives are recommended for King StarBoard? BoatLIFE® LifeCaulk® works well to replace old or worn caulking. Before caulking, the surface should be prepared by abrading it with medium-grit sandpaper, then cleaning it with acetone, toluene or alcohol. King StarBoard can be welded using special rods. Contact Plastic Welding Technolgies (www.pwtworld.com) for details. Adhesives have been used with some success, however King Plastic Corporation recommends using mechanical fasteners to ensure reliability."
NO!
Starboard is not a replacement for plywood. It does not have the structural strength and therefore must be well supported. Marine grade plywood is the substance you are in need of. The price is much higher, but is will withstand the marine environment. Jim
Starboard is not a replacement for plywood. It does not have the structural strength and therefore must be well supported. Marine grade plywood is the substance you are in need of. The price is much higher, but is will withstand the marine environment. Jim
starboard
I've done quite a bit of work with starboard. Grainger has the glue. Its 2 part, sorta expensive but does the job. No other glue will work.
I've done quite a bit of work with starboard. Grainger has the glue. Its 2 part, sorta expensive but does the job. No other glue will work.
Yes! It most certainly is!
I'm not sure what Jentine's objection is based upon, but I can assure you that for just about every usage on a boat you can think of (hatches, dividers, minor bulkheads, etc.) Starboard (and competing product from Taco) is a very satisfactory and totally waterproof substitute for plywood. The caveats would be: melting point: starboard-type products have something like a 200 degree melting point and shouldn't be used for engine compartment sections that might be exposed to this heat; critical bulkheads: vertical structural bulkheads that support a lot of the coach roof or deck should be replaced with the strongest material possible (although thicker Starboard pieces might replace thinner plywood sections). I've used Starboard to replace rotted flooring and bulkheads in my cockpit locker and can see no evidence that this material was less rigid than the original plywood (in fact, it was denser and more rigid for the same thickness).
I'm not sure what Jentine's objection is based upon, but I can assure you that for just about every usage on a boat you can think of (hatches, dividers, minor bulkheads, etc.) Starboard (and competing product from Taco) is a very satisfactory and totally waterproof substitute for plywood. The caveats would be: melting point: starboard-type products have something like a 200 degree melting point and shouldn't be used for engine compartment sections that might be exposed to this heat; critical bulkheads: vertical structural bulkheads that support a lot of the coach roof or deck should be replaced with the strongest material possible (although thicker Starboard pieces might replace thinner plywood sections). I've used Starboard to replace rotted flooring and bulkheads in my cockpit locker and can see no evidence that this material was less rigid than the original plywood (in fact, it was denser and more rigid for the same thickness).
King StarBoard
From King StarBoard FAQ’s: http://www.kingstarboard.com/InfoCenter/FAQ.aspx Q. Is King StarBoard as strong as marine plywood? A. There are many types of marine plywood. The better ones are stronger than King StarBoard, which was not designed to be a structural material. High Density Polyethylene (HDPE) is a rugged material which is easy to mold, has a high resistance to impact, a modest structural strength, and is not affected by most chemicals. HDPE (Marine Lumber) is not a structural material. The framing or structure it is attached to must be able to withstand any stress or load it may be subject to. Marine Lumber is an excellent product to make non load bearing products respectfully, Gord
From King StarBoard FAQ’s: http://www.kingstarboard.com/InfoCenter/FAQ.aspx Q. Is King StarBoard as strong as marine plywood? A. There are many types of marine plywood. The better ones are stronger than King StarBoard, which was not designed to be a structural material. High Density Polyethylene (HDPE) is a rugged material which is easy to mold, has a high resistance to impact, a modest structural strength, and is not affected by most chemicals. HDPE (Marine Lumber) is not a structural material. The framing or structure it is attached to must be able to withstand any stress or load it may be subject to. Marine Lumber is an excellent product to make non load bearing products respectfully, Gord
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