Marine Board - Withstands the harshest marine conditions.

Marine Board and King StarBoard® provided by Interstate Plastics is environmentally stabilized to withstand the most challenging and roughest marine environments.

Marine Board is a superior alternative to wood at an economical price, and won't delaminate or lose its color. Marine Board is easily machinable using common woodworking tools. King Starboard® is the industry standard for extreme outdoor weather performance. Interstate Plastics provides Marine Board as a more economical version of Starboard®, without sacrificing material specifications or performance.


What is Marine Board?

Manufactured for marine use, Marine Board HDPE is a superior alternative to wood at a very economical price. While resistant to salt water, a wide range of chemicals and UV exposure, unlike other alternatives, Marine Board doesn't splinter, crack, delaminate, rot, swell or absorb water. Even under heavy foot traffic on yacht decks, it remains virtually maintenance free.

The colors of Marine Board are integrated with the polymer, retaining color vibrancy and saving you time and money from needing to repaint. Marine Board is easily cut, routed, shaped and drilled using common standard woodworking and shop tools.

With a self-lubricating formula and a high sliding resistance alongside excellent long-term durability and weather resistance, Marine Board HDPE is an ideal marine plastic for a variety of applications including replacing wood, metal or laminate walkways, hatches, walkways, cabinetry and countertops as well as ship and boat components regularly exposed to harsh outdoor environments.

In addition to its resistance to marine and other outdoor conditions, Marine Board has a decorative, textured surface that does not show wear, dirt or scratches.

Interstate Plastics also carries King Starboard®?HDPE Marine Board, the industry standard for extreme outdoor weather performance. Interstate Plastics provides Marine Board as a more economical version of Starboard®, without sacrificing material specifications or performance, and also offers varying grades of Marine Board plastic including King StarBoard®, King StarBoard®?A/S, King StarBoard®?XL, and King Starlite®XL Utility.


  • Acid, odor, moisture, and mildew resistant
  • Extremely easy to machine
  • Excellent resistance to acids, alcohols and bases
  • Excellent long term durability
  • Great weather resistance?
  • Abrasion resistant
  • Thermoformable
  • Good flexibility and toughness
  • Cost effective versus other marine solutions
  • Low-Maintenance
  • UV Stabilized, all-weather resistant
  • FDA approved in certain grades
  • High impact and tensile strength
  • Excellent energy absorption
  • Maintains decorative, textured surface
  • Retains original color?
  • Will not show wear, dirt or scratches
  • Gloss finish
  • Easy to clean

King Starboard® Specs, Grades & Applications

Varying Grades of Marine Grade HDPE

King StarBoard®
With all the same benefits as Marine Board, King StarBoard® lends itself to the industry standard of original marine-grade HDPE. With a proprietary formula, King StarBoard®?is most advanced and highest performing consistently flat continuous Marine Grade plastic sheet.

King StarBoard®?is environmentally stabilized to storm the harshest weather and stand up to any extreme marine environment.

Marine Board versus King StarBoard®?A/S
With all the same benefits at Marine Board and King StarBoard®, StarBoard®?A/S grade applies an anti-slip texture, perfect for high traffic walkways and other areas where a texture is desired.

Marine Board versus King StarBoard®?XL
Interstate Plastics' King Starboard®?XL is a lighter, more economical version of the popular Marine Board.

This 100% virgin polymer, marine-grade cellular material has an excellent surface finish. Interstate Plastics' Black King StarBoard®?XL sheets are up to 30% lighter in weight than Marine Board, and are made with the same textured surface and colors for a perfect match.

Sheet sizes are 54" wide and 96" long. Black and white versions are most readily available and remain equally priced.You can expect 15 day delivery for this item.

Marine Board versus King Starlite®?XL Utility
King Starlite®?XL Utility is an economical cellular (closed cell) utility sheet made from select high-grade King StarBoard®recycled High-Density Polyethylene.

Fabricating and finishing King Starlite®?XL Utility is easy using standard woodworking tools. King Starlite®?XL Utility forms easily for smooth curves and bends. Since there is no grain pattern, parts can be cut from any part of the sheet, virtually eliminating waste (offering greater economy versus wood).

Marine Board Applications
  • Marine and non-marine walkways, cabinetry, countertops
  • Ship and boat components
  • Alternative to wood and metal
  • Furniture hatches
  • Cover rails
  • Trim and components decorative wood.
Physical Properties of Marine Board
Molecular Weight
0.062 lbs.
Density
58.1 - 60.2 lbs/ft^3
Water Absorption
0.03% at 24 hours
Modulus of Elasticity:
Homopolymer
Copolymer
 
150k psi
60k - 145k psi
DSC Melting Point:
Homopolymer
Copolymer
 
275F
230 - 273F
Specific Heat @ 73F
2.25 kJ/kg K
Hardness, Shore D
55 - 70
Coefficient of Friction
0.29
Auto-Ignition Temperature
790F
Elongation at Yield
10%
Tensile Modulus of Elasticity
900 N/mm^2

*Values listed are typical and are meant only as a guide to aid in design. Field testing should be performed to find the actual values for your application.

Prop 65 Warning WARNING: This product can expose you to chemicals including Bisphenol A, CAS 80-05-7, which are known to the State of California to cause birth defects or other reproductive harm. For more information go to?www.P65Warnings.ca.gov.

Product Title
Product Description
Marine Board withstands the rigors of harsh outdoor marine environments.
HDPE MARINE BOARD SHEET - BLACK
Marine Board withstands the rigors of harsh outdoor marine environments.
HDPE MARINE BOARD SHEET - DOLPHIN GRAY
Marine Board withstands the rigors of harsh outdoor marine environments.
HDPE MARINE BOARD SHEET - SANDSHADE
Marine Board withstands the rigors of harsh outdoor marine environments.
HDPE MARINE BOARD SHEET - LIGHT GRAY
Marine Board withstands the rigors of harsh outdoor marine environments.
HDPE MARINE BOARD SHEET - SEA FOAM OFF WHITE
Marine Board withstands the rigors of harsh outdoor marine environments.
HDPE MARINE BOARD SHEET - WHITE

 


 

King Starboard withstands the rigors of harsh outdoor marine environments.
KING STARBOARD® SHEET - BLACK
King Starboard withstands the rigors of harsh outdoor marine environments.
KING STARBOARD® SHEET - DOLPHIN GRAY
King Starboard withstands the rigors of harsh outdoor marine environments.
KING STARBOARD® SHEET - SANDSHADE
King Starboard withstands the rigors of harsh outdoor marine environments.
KING STARBOARD® SHEET - LIGHT GRAY
King Starboard withstands the rigors of harsh outdoor marine environments.
KING STARBOARD® SHEET - SEAFOAM
King Starboard withstands the rigors of harsh outdoor marine environments.
KING STARBOARD® SHEET - WHITE

 


 

Marine Board XL is a lighter, economical version of Marine Board.
MARINE BOARD - BLACK XL
Marine Board XL is a lighter, economical version of Marine Board.
MARINE BOARD - GRAY XL
Marine Board XL is a lighter, economical version of Marine Board.
MARINE BOARD - WHITE XL

 


 

King Starboard XL is a lighter, economical version of King Starboard.
HDPE KING STARBOARD® SHEET - BLACK XL
King Starboard XL is a lighter, economical version of King Starboard.
HDPE KING STARBOARD® - DOLPHIN GRAY XL
King Starboard XL is a lighter, economical version of King Starboard.
HDPE KING STARBOARD® - WHITE XL

 


 

King Starlite XL Utility is a lightweight marine substrate utility sheet.
King Starlite® Sheet - Black XL Utility
King Starlite XL Utility is a lightweight marine substrate utility sheet.
King Starlite® - Dolphin Gray XL Utility
King Starlite XL Utility is a lightweight marine substrate utility sheet.
King Starlite® - White XL Utility

 


 

Polymer construction material with desirable architectural specifications for long term durability.
STARBOARD®?ST WHITE - SCRATCH RESISTANT ULTRA-STIFF BUILDING SHEET
Polymer construction material with desirable architectural specifications for long term durability.
STARBOARD®?ST DOLPHIN GRAY - SCRATCH RESISTANT ULTRA-STIFF BUILDING SHEET
Polymer construction material with desirable architectural specifications for long term durability.
STARBOARD®?ST BLACK - SCRATCH RESISTANT ULTRA-STIFF BUILDING SHEET
Polymer construction material with desirable architectural specifications for long term durability.
STARBOARD®?ST CHARCOAL GRAY - SCRATCH RESISTANT ULTRA-STIFF BUILDING SHEET
Polymer construction material with desirable architectural specifications for long term durability.
STARBOARD®?ST SEAFOAM - SCRATCH RESISTANT ULTRA-STIFF BUILDING SHEET
Polymer construction material with desirable architectural specifications for long term durability.
STARBOARD®?ST EVERGLADE - SCRATCH RESISTANT ULTRA-STIFF BUILDING SHEET
Polymer construction material with desirable architectural specifications for long term durability.
STARBOARD®?ST SANSHADE- SCRATCH RESISTANT ULTRA-STIFF BUILDING SHEET
Polymer construction material with desirable architectural specifications for long term durability.
STARBOARD®?ST MOCHA BROWN - SCRATCH RESISTANT ULTRA-STIFF BUILDING SHEET

 


 

HDPE welding rod is sold by the pound, shipped in 4' straight lengths.
HDPE Welding Rod - Black
HDPE welding rod is sold by the pound, shipped in 4' straight lengths.
HDPE Welding Rod - Natural
HDPE welding rod is sold by the pound, shipped in 4' straight lengths.
HDPE Welding Rod - Marine Grade White
HDPE welding rod is sold by the pound, shipped in 4' straight lengths.
Saw blades that offer premium performance on hard and soft plastics.

 


Plastic cutting bits by Onsrud are an industry standard in quality.
Onsrud - Plastic Router Bits
Onsrud 70-500 Series HSS High Speed Steel Two Flute Fractional Drill Bits for Plastic
Onsrud 70-500 HSS High Speed Steel Drill Bits for Plastic
Carbide-tipped saw blades ideal for cutting brittle plastic.
Forrest NO-MELT Saw Blades
Plastic welding is easy with the Leister plastic welding kit.
Leister Plastic Welding Kit

Interstate Plastics Suppliers