Description

King StarBoard® is the original marine-grade high-density polyethylene sheet and the leading brand in the marine industry. The King name is synonymous with quality to those who know plastics, and the King StarBoard® brand has been helping pros build better boats for more than thirty-years. It is the product of a proprietary process called K-Stran™, the most advanced manufacturing process for superior flatness and consistency. King StarBoard® has a matte finish on both sides of the sheet. It is environmentally stabilized to withstand the harshest outdoor conditions. King StarBoard® will not rust, delaminate or rot when exposed to UV, humidity or water. It is ideal for a variety of marine applications from replacing wood, to building boat components and furniture. The polymer sheet never needs painting or refinishing, works like wood, and is easy to fabricate with common woodworking tools and techniques.

King StarBoard® is upgradable to King MicroShield® with an advanced antimicrobial technology for protecting the product surface against stain and odor causing bacteria, algae and fungi.*

King StarBoard® is upgradable with King FlameShield, for ASTM E-84 Class A Flame Compliance and CAN/ULC-S102 for Canadian Compliance.

For more information about King MicroShield® and King FlameShield, please visit those product pages.

Disclaimer: King MicroShield® may affect color. King FlameShield may affect finish and color.

*For bacteriostatic, fungistatic, & algistatic properties. This product is exempt from registration under 40 CFR 152.25(a). King MicroShield® effectiveness verified by ISO and ASTM standards. This product does not protect users or others from disease-causing bacteria. Always clean this product thoroughly after use.

Where to Buy

Specifications

Standard Sheet Sizes

in: 48” x 96” 54” x 96”
mm: 1219mm x 2438mm 1371.6mm x 2438mm
Colors Only in 1-1/2” gauge, all standard colors available All standard colors available

Standard Gauges

in: 1/4” 3/8” 1/2” 3/4” 1” 1-1/2”
mm: 6.4mm 9.53mm 12.7mm 19mm 25.4mm 38mm

Approximate Weight 48 x 96 (only in 1-1/2″ gauge)

lbs: 240 lbs
kg: 108.6kg

Approximate Weight 54 x 96

lbs: 45 lbs 67.5 lbs 90 lbs 135 lbs 180 lbs
kg: 20kg 31kg 41kg 61kg 81kg

Tolerance information:
Gauges 1/4″ up to 1-1/2” ± 5% | Length and width plus only at room temperature

Custom sheet sizes, gauges and colors available

Physical Properties
Properties Units ASTM Nominal Values
Density g/cc D1505 0.955
Tensile Strength @ Yield psi D638 >4,100
Tensile Modulus psi D638 255,000
Elongation @ Break % D638 >600
Elongation @ Yield % D638 9.8
Flexural Modulus psi D790 185,000
Flexural Stress @ 5% Strain psi D790 3,810
Compressive Properties 10% Strain psi D695 4,950
Durometer Shore D D2240 68
Tensile Impact ft.lbs./in.2 D1822 115
Izod Impact Resistance ft.lbs./in.2  D256 1.1
Brittleness Temp. ºC (ºF) D746 <-76ºC (<-105ºF)
Vicat Softening Temp. ºC (ºF)  D1525  123ºC (253ºF)
Heat Deflection Temp. 66 psi ºC (ºF)  D648  75ºC (167ºF)
Screw and Nail Withdrawal lbs D1761 657 & 63
Flammability Rating UL94 HB

All values are determined on specimens prepared according to ASTM standards.
Nominal values should not be interpreted as specifications.
King StarBoard® is made entirely from FDA and USDA approved material.
King StarBoard® meets ASTM D4976.
The raw material used to make King StarBoard® does not contain BPA’s or Phthalates.

Colors

Additional Information
  • Made of the finest polymers available, using our
    proprietary K-Stran™ process for superior flatness
    and consistency.
  • Environmentally stabilized for harsh sun and tough
    marine environments.
  • Will not rot, swell, splinter or delaminate when exposed
    to humidity or water.
  • Precise tolerances ensure consistent color, thickness and
    density, even for special thickness gauges and custom
    order colors.
  • Easy to fabricate with standard woodworking tools and
    requires little or no finishing.
  • Available in eight standard colors to match or accent
    any gelcoat.
  • Unlimited custom/proprietary colors.
  • Durable matte-textured surface on both sides.
  • Easy to clean and never needs refinishing.
  • Edges finish cleanly and easily.
  • Forms easily for smooth curves.
  • Has passed the Federal Motor Vehicle Standard 302 fire
    test required for use in motor vehicles, including
    motor homes.
  • Available in large sheets up to 54” x 96” or 48” x 96”.
  • Custom sheet sizes available.
  • Shipped with a protective masking on one side.
  • Proven on thousands of boats and yachts.
  • Experienced boat builders and boaters know the King StarBoard® brand and trust it more than any other.