![]() ![]() Aluminum boats aren’t molded, so they tend to have much simpler hullforms and accessories must be secured in place with fasteners. ADVANTAGE: Poly boats are molded, so like fiberglass boats, they can have hulls with complex shapes and compound curves decks can have molded-in compartments and large accessories like seat bases or consoles can also be molded.There are few over 20’ and many of the relatively large models require structural hull supports built from different materials. DISADVANTAGE: Polyethylene isn’t as structurally stiff as fiberglass or aluminum, so poly boats are limited in size.One of our editors owned a 10’ poly boat which fell out the back of a pick-up truck while doing 50 MPH, and after bouncing down the road and off onto the shoulder, other than a few scuff marks it remained undamaged. Whack the hullsides with a sledgehammer (Triumph will invite you to at the boat shows) and there’s zero effect. Smash into a rock jetty, much less a piling, and a poly boat will just bounce right off. ADVANTAGE: Polyethylene is extremely impact-resistant, and we’ll go as far as to say that poly boats are virtually indestructible in the normal course of recreational boating.Triumph builds some of the largest and best-looking plastic boats around, using a type of polyethylene combined with UV protecting materials, pigments, and antioxidants, which they call “Roplene.” In a nutshell, here are the major advantages and disadvantages of polyethylene as opposed to fiberglass or aluminum: ![]()
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