{"id":2066,"date":"2026-10-21T00:42:39","date_gmt":"2026-10-21T00:42:39","guid":{"rendered":"https:\/\/zhhmarinefender.com\/?p=2066"},"modified":"2026-10-21T01:35:09","modified_gmt":"2026-10-21T01:35:09","slug":"eva-foam-fender","status":"publish","type":"post","link":"https:\/\/zhhmarinefender.com\/fr\/eva-foam-fender\/","title":{"rendered":"Qu'est-ce qu'un garde-boue en mousse EVA ?"},"content":{"rendered":"

Built from closed-cell ethylene-vinyl acetate (EVA) foam, an EVA foam fender keeps a hull off docks, piles and other vessels without relying on air pressure. In retail catalogs the name usually means a solid molded bumper for boats and docks. Some industrial suppliers also use it for foam-filled fenders, which wrap a closed-cell EVA or polyethylene core in a reinforced polyurethane skin. Which product fits depends on vessel size, where the fender mounts (hanging, flat, bow, corner or fixed to the dock), and whether a protective skin is needed against abrasion and UV. Both share one working principle: a foam body with no air chamber to lose.<\/p>\n

Understanding EVA Foam Fenders<\/h2>\n

EVA foam fenders protect hulls and docks by compressing closed-cell ethylene-vinyl acetate foam, and the term covers both solid molded bumpers for small craft and foam-filled fenders for commercial berths. Knowing which of the two a listing means is the first step in comparing prices or specifications.<\/p>\n

EVA (Ethylene-Vinyl Acetate) is a copolymer that can be foamed into a closed-cell structure. Because most cells are isolated from one another, closed-cell EVA foam floats and takes up little water compared with open-cell foam. Low water uptake is the main reason EVA is used for boat bumpers that sit in spray and rain every day.<\/p>\n

Solid EVA fenders are lighter to lift and handle on deck than rubber fenders of similar size, and unlike pneumatic fenders<\/a> they need no inflation. EVA and polyethylene cores are not interchangeable on a specification sheet. Density, stiffness and water uptake differ by polymer and formulation, so a datasheet for one says nothing about the other.<\/p>\n

\n
\n\n\n\n\n\n\n\n\n
Term<\/th>\nWhat it usually means<\/th>\nWhat to ask the supplier<\/th>\n<\/tr>\n<\/thead>\n
EVA foam fender<\/td>\nRetail: a solid molded EVA bumper. Industrial: sometimes a foam-filled fender with an EVA core<\/td>\nWhether the product has a skin, and what the core material is<\/td>\n<\/tr>\n
Foam-filled fender<\/td>\nA closed-cell foam core (often polyethylene, sometimes EVA) inside a reinforced polyurethane skin<\/td>\nCore material, core density, skin construction and skin hardness on the datasheet<\/td>\n<\/tr>\n
Closed-cell EVA vs closed-cell polyethylene<\/td>\nTwo different foam polymers, both with mostly sealed cells<\/td>\nWater absorption and compression test results with test conditions, not the polymer name alone<\/td>\n<\/tr>\n
Dock bumper vs boat fender<\/td>\nCommon trade usage: “bumper” for dock-mounted pieces, “fender” for units hung from the boat, though both terms are used for either<\/td>\nWhich side the product mounts on, before ordering hardware<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\"Foam-Filled-Fenders-2\"<\/p>\n

Solid EVA Fenders vs Foam-Filled Fenders<\/h3>\n

Solid EVA fenders and foam-filled fenders differ mainly in construction: the first is foam all the way through, while the second adds a fibre-reinforced polyurethane skin over a closed-cell polyethylene or EVA core. The skin changes where wear happens and what to inspect.<\/p>\n

Without a skin, sunlight, hull contact and dock abrasion act directly on the foam, so the surface of a solid EVA fender is both its wear layer and its wear indicator. In a foam-filled fender the skin takes that load and the core stays protected, which moves the inspection point from the foam surface to cuts and tears in the skin. Same name, different maintenance.<\/p>\n

For a trailer boat or a pontoon boat in a sheltered marina, a solid EVA bumper is usually enough once its size and contact height have been checked. A skinned foam-filled fender there buys durability the duty never uses. Foam-filled fenders earn their cost on commercial berths, tug and workboat operations and offshore structures. There, sizing starts from a berthing-energy calculation for the design vessel, a separate engineering step covered in a dedicated foam fender selection guide<\/a>.<\/p>\n

\n
\n\n\n\n\n\n\n\n\n
Scenario<\/th>\nSolid EVA fender<\/th>\nFoam-filled fender (PE or EVA core, PU skin)<\/th>\n<\/tr>\n<\/thead>\n
Hanging fender on a small boat or tender<\/td>\nSuitable; light enough to handle by hand. Size by boat length, weight and freeboard<\/td>\nUsually more than the duty needs, unless the boat lies alongside other vessels daily<\/td>\n<\/tr>\n
Dock corner, slip end or floating pontoon edge<\/td>\nSuitable as a molded corner piece or flat strip fixed to the dock<\/td>\nSuitable where vessels heavier than leisure craft berth<\/td>\n<\/tr>\n
Commercial berth, tug or workboat contact<\/td>\nNot suitable unless the supplier can show compression test data for that duty<\/td>\nSuitable when sized from berthing energy and allowable hull pressure<\/td>\n<\/tr>\n
Ship-to-ship transfer or offshore platform<\/td>\nNot suitable<\/td>\nSuitable when rated for the calculated energy; compare against pneumatic options<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

Key Features of EVA Foam Fenders<\/h2>\n

The features that matter in an EVA fender are closed-cell construction, energy absorption and weather resistance, and each one depends on foam density, formulation and whether the fender has a protective skin.<\/p>\n