Technical Specifications Of Foam Filled Fender

technical specifications of foam filled fender

Floating Foam Filled Fender Scope Of Work

This specification details the requirements for the supply and performance of Foam Filled Marine Fenders as per to marine fendering industry requirement based on ABS classification society Type Approval for foam filled fender . This specification does not include requirements for mounting hardware.

Foam Filled Fender References

A. The publications listed below form a part of this specification to the extent referenced. The publications are referred in the text by basic designation only.

  1. U.S. Department of Defence (DOD): RR-C-271 – (1995) Chains and Attachments, Welded and Weld less.
  2. Federal Standards (FED-STD): PPP-C-1752B – (1990) Polyethylene Plastic Foam.
  • ASTM International (ASTM):
  • A36 – Standard Specification for Carbon Structural Plate.
  • A536 – Standard Specification for Ductile Iron Castings.
  • A513 – Standard Specification for Mechanical Tubing.
  • A53 – Standard Specification for Pipe.
  • A123 — Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.
  • A153/A153M — Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Hardware.
  • A593 – Standard Specification for Stainless Steel Bolts.
  • D412 — Vulcanized Rubber and Thermoplastic Rubbers and Thermoplastic Elastomers — Tension.
  • A413/A413M — Carbon Steel Chains.
  • D624 — Rubber Property Tear Resistance.
  • D885 – Test Method for Tire Cords, Tire CordFabrics, and Industrial Filament Yarns Made fromManmade Organic Base Fibers.
  • D1052 — Measuring Rubber Deterioration-CutGrowth Using Ross Flexing Apparatus.
  • D1630 — Rubber Property — Abrasion Resistance(NBS Abrader).
  • D2240 — Rubber Property — Durometer Hardness.
  • D3575 — Flexible Cellular Materials Made fromOlefin Polymers.
  • F2192-02 — Test Method for Determining and Reporting the Berthing Energy and Reaction of Marine Fenders.
  • American Welding Society (AWS): D1.1 – Structural

Welding Code — Steel.

PIANC — International Navigation Association: Report of WG33 — Guidelines for the Design of Fender Systems.

Fender Manufacturer Qualifications

Fender manufacturer shall meet the following requirements.

Manufacturing – Facility in which the fenders are manufactured shall have the following certifications:

  1. Quality Management System – ISO9001:2015.
  2. Environmental Management System — ISO14001:2015
  3. ABS Type Approval certificate — foam filled marine fenders.

Foam Filled Fender Quality Assurance

foam filled fender quality assurance

Elastomer Skin:

The Elastomer skin of the foam fender shall be generally free from cracks, burrs, warp age, checks, chips, or blistered surfaces, and shall have a smooth surface.

Steel Fabrication:

The steel used in fabrication shall be free from kinks, burrs, sharp bends, and other conditions which would be detrimental to the finished product.

Manufacturing processes shall not reduce the strength of the steel to a value less than intended by the design. Manufacturing processes shall be done neatly and accurately. Make bends by controlled means to ensure uniformity of size and shape.

Foam Core:

The foam core shall be homogeneous fabricated construction and shall not be in chip or granular form.

The foam core construction shall utilize only a heat-laminated process, and yield a single solid foam core.

The foam core shall not contain scraps, strips, or sheets of foam either rolled or stuffed into the required shape unless pieces are bonded together in layers of uniform patterns to form a homogeneous, one-piece core.

Homogeneous foam rings of adequate thickness to ensure performance of the fender is acceptable provided the Contractor could show a minimum 3-year performance of similar fenders.

Tests shall be carried out on every batch of foam delivered, and shall be in accordance with ASTM D3575 or comparable ISO methods.

All foam used shall be traceable to the manufacturer of the foam, by means of production data and lot number, or other positive means. Production/Quality Control records of the fender manufacturer shall record this information for each fender manufactured.

The fender manufacturer’s records must be able to trace all foam used in each fender back to the manufacturer of the foam, and identify the date the foam was manufactured and tested.

The manufacturer of the foam shall provide certified test reports for each lot of foam delivered, and the fender manufacturer must maintain those records for a period of 10 years. The fender manufacturer shall provide proof that the sufficient quantity of foam was purchased to complete this contract.

The fender manufacturer shall retain samples from each lot of foam used in the fenders. The samples shall be subject to re-tests at the request of the purchaser of the fenders.

Welding: AWS D1.1:

Welds shall be of sufficient size and shape to develop the full strength of the parts connected by the welds. Welds shall transmit stress without permanent deformation or failure when the parts connected by the weld are subjected to proof and service loading.

Foam Filled Fender Delivery, Storageand Handling:

Fenders shall be undamaged when delivered and shall be handled and stored so as to prevent damage such as bending or abrading end fittings or cutting of skin.

Protect fenders from exposure to damaging liquids, oils, and greases.


Fenders that are delivered to the site in a damaged condition or that are not in conformance with this specification are subject to rejection. Any rejected materials shall be replaced with suitable materials, at no additional cost to the Owner.

Performance Requirements

performance requirements

The Foam Filled marine fenders shall be designed so that when compressed across its diameter by two parallel flat plates extending the full length and width of the fender, the fender shall absorb no less than 90% of above rated performance when 60 percent compressed (i.e. to a dimension of 40 percent of its original diameter) with a corresponding load of not more than 110% of the above rated reaction force.

The fender shall also be designed to withstand a sustained reaction force of 50% of the rated reaction force for a duration of not less than 24 hours each occurrence for at least 200 occurrences during its 10-year predicted life.

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