The Polymer Building Sheets That Last A Lifetime.
Now Available for Upgrade with a ASTM E-84 Class A or B Flame/Smoke Rating and CAN/ULC-S102 for Canadian Rating
- Description
- Videos
- Colors
- Specifications
- Physical Properties
- Physical Properties FlameShield Class A
- Flame/Smoke Rating
- Downloads
- LEED Points
King StarBoard® ST is a special, high-density polyethylene sheet that provides scratch-resistant surface for many King StarBoard® applications. A unique and advanced polymer makes the material 25% stronger than the original King StarBoard®. High scratch-resistance makes it especially appropriate in the construction of cabinets and furniture. Also, its high strength and stiffness make it desirable for applications where less structural support is available. King StarBoard® ST is now available with our exclusive antimicrobial additive King MicroShield™. The latest technology for protecting the product surface against a broad spectrum of damaging bacteria, algae, and fungi by reducing the amount of microbes by 99.99%.
King StarBoard® ST is environmentally stabilized and has been developed to withstand the harshest outdoor conditions. It can be used in wet areas that need to be washed often for cleaning, or are regularly exposed to moisture. It can be fabricated using common woodworking tools and techniques.
King StarBoard® ST XL is a lighter, more economical version of King StarBoard® ST and is up to 30% lighter in weight. It is made with the matte gloss surface and colors for a perfect match and has a thickness tolerance of plus or minus 5%.
Black, Mocha Brown, Evergreen Everglade, Dolphin Grey, Sanshade, Seafoam, White/White*Note: Color accuracy can vary considerably on computer monitors and printers. Please consult your distributor for a product sample before making critical color choices. Specialty colors by special order only.
Standard Sheet Sizes: (in)
48” x 96”
Standard Gauge: (in)
1/4” | 3/8” | 1/2″ | 3/4” | 1” | 1-1/2”
Approximate Weight: (lbs)
40 lbs | 60 lbs | 80 lbs | 120 lbs | 160 lbs | 240 lbs
Standard Sheet Sizes: (mm)
1220mm x 2440mm
Standard Gauges: (mm)
6.4mm | 9.53mm | 12.7mm | 19mm | 25.4mm |38mm
Approximate Weight: (kg)
18kg | 27kg | 36kg | 54.4kg | 72.6kg | 109kg
Tolerance information: Gauges ± 5%, both width and length Plus Only at room temperature.
Custom sheets sizes, gauges, and colors available upon request.
King StarBoard® ST is available in an XL version upon request.
Scratch & mar resistance: Internal testing method
shows a 295% improvement over non-ST finish.
Chemical Resistance
| Properties | Units | ASTM | StarBoard® ST |
StarBoard® STXL |
| Density | g/cc | D1505 | .96 | .77 |
| Tensile Strength @ Yield | psi | D638 | >4500 | >3600 |
| Tensile Modulus | psi | D638 | 8.8 | 48% |
| Elongation @ Break | % | D683 | >600 | - |
| Elongation @ Yield | % | D638 | 8.8 | 4.8 |
| Flexural Modulus | psi | D790 | 225,000 | 163,000 |
| Flexural Stress @ 5% Strain | psi | D790 | 4,480 | 3,480 |
| Compressive Properties 10% Strain | psi | D695 | 4,790 | 2,820 |
| Durometer | Shore D | D2240 | 69 | 68 |
| Tensile Impact | ft.lbs./in.2 | D1822 | 99 | - |
| Izod Impact Resistance | ft.lbs./in.2 | D256 | 1.4 | 1.7 |
| Brittleness Temp. | ºF | D746 | <-105º | - |
| Vicat Softening | ºF | D1525 | 270º | - |
| Heat Deflection Temp. 66 psi | ºF | D648 | 183º | 179º |
| Screw and Nail Withdrawl | lbs | D1761 | 755 & 55 | 548 & 49 |
| 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 ST® is made entirely from FDA and USDA approved materials.
King StarBoard ST® meets ASTM 4976 PE 244
King StarBoard ST Physical Properties | King StarBoard STXL Physical Properties | King StarBoard ST MSDS
| Properties | Units | ASTM | Nominal Values |
| Density | g/cc | D1505 | 1.3 – 1.35 |
| Tensile Strength @ Yield | p.s.i. | D638 | 3780 |
| Tensile Strength @ Break |
p.s.i. | D663 | 1,170 |
| Elongation @ Yield | % | D638 | 8.6 |
| Elongation @ Break | % | D638 | 53 |
| Flexural Modulus | p.s.i. | D790 | 179,000 |
| Durometer (Hardness) |
Shore D | D2240 | 71 |
| Flexural Stress @ 5% Strain |
psi | D790 | 4330 |
| Vicat Softening | ºF | D1525 | 264 |
| Heat Deflection Temp. 66p.s.i. |
ºF | D648 | 188 |
| Coefficient of Linear Thermal Expansion |
in./in./ºF | D696 | 6×10-5 |
| Surface Burning Characteristics |
FSI & SDI | E-84 | 20 & 60 |
| Surface Burning Characteristics | FSI & SDI | ULC-S102 | 20 & 65 |
Protect Your Interests with E-84 Class A or B Flame Rated Polymer Sheets from King Plastic Corporation
Available in King StarBoard® Products
The ASTM E84
This test method is intended to compare the surface flame spread and smoke developed measurements to those obtained from the tests of mineral fiber cement board and select grade red oak flooring. The results are expressed as Flame Spread Index and Smoke Developed Index.
Results
Class A Interior Finish:
Flame Spread Index 0-25, Smoke Developed Index 0-450. Includes any material classified at 25 or less on the flame spread test scale and 450 or less on the smoke developed test scale. Any element thereof when so tested shall not continue to propagate fire.
Class B Interior Finish:
Flame Spread Index 26-75, Smoke Developed Index 0-450. Includes any material classified at 25 but not more than 76 on the flame spread test scale and 450 or less on the smoke developed test scale.
LEED for Existing Buildings, September 2008
1 point: MR Credit 2.2 Sustainable Purchasing:
Durable Goods
LEED for New Construction, Version 2.2
2 points: MR credit 4.2 Recycled Content
LEED for Commercial Interiors, Version 2.0
2 points: MR credit 4.2 Recycled Content
1 point: EQ credit 4.5, Low-Emitting materials
LEED for Homes, January 2008
.5 point: MR credit 2.2 Environmentally
Preferable Products
LEED for Schools, First Edition, November 2007
2 points: MR Credit 4.2 Recycled Content
Green Guild for Health Care, version 2.2
1 point: MR Credit 5.2 Furniture & Medical
Furnishings: Materials
1 point: MR Credit 5.3 Furniture & Medical
Furnishings: Manufacturing, Transportation and Recycling
