Roto Marine Products Floats


Permafloat dock float logo

Permafloat® Dock Floats are premium-quality, durable, and can be easily attached to nearly any new or existing wood, steel, or aluminum dock system. Cellofoam rotationally molds each Permafloat® with a nominal 0.150 inch thick walls using virgin polyethylene with ultraviolet inhibitors to make the floats extra durable to withstand damage from harsh marine environments. Permafloat® Dock Floats are filled with expanded polystyrene foam for superior buoyancy, and the rugged shell encapsulates the foam to protect the marine environment. The floats are suitable for both residential and commercial applications, and are backed by a 15-year limited manufacturer warranty.

Cellofoam was a pioneer in the encapsulation of EPS foam in docks to protect the environment. We have taken this environmentally friendly stance one step further by refusing to sell EPS foam for unencapsulated dock flotation.

Photo of a group of three stacked Permafloat dock floats
Close-up photo of a Permafloat dock float showing two options for connecting to a dock
Pretty dock made using Permafloat dock floats
Pretty dock made using Permafloat dock floats
Pretty dock made using Permafloat dock floats

Key Features

Purchasers of our floats and lift tanks should engage with professional design experts to incorporate these products into their marine systems.


Protect what matters most

We’re dedicated to manufacturing products that meet the highest standards of quality and performance. Need to know if Cellofoam’s products are right for your next project? Reach out to our team.