Kynar® Fluoropolymer Family
Burning Studies
Kynar® PVDF resins have been tested and meet many standards that most other polymers cannot. The table below lists test standards that certain Kynar® resins meet.
CERTAIN GRADES OF KYNAR® PVDF MEET THE FOLLOWING TEST STANDARDS
|
TEST METHOD |
PROPERTIES |
|---|---|
|
ASTM E 84 (NFPA 255, UL 723) |
Surface Burning Characteristics of Building Materials |
|
ULC S102.2 |
Canadian Surface Burning Characteristics of Building Materials |
|
NFPA 262 (UL 910) |
Flame Travel and Smoke of Wires and Cable for Use in Air-Handling Spaces |
|
UL 2024 |
Optical Fiber Raceway |
|
FM 4910 |
Cleanroom Materials Flammability Test Protocol |
|
UL 2360 |
Combustibility Characteristics of Plastics Used in Semi-Conductor Tool Construction |
|
FAR 25.853 |
Federal Aviation Administration Smoke Density and Toxicity Performance |
|
ASTM E 662 |
Optical Density of Smoke Generated by Solid Materials |
|
ASTM E 162 |
Surface Flammability of Materials Using a Radiant Heat Energy Source |
|
BS 476:7 Class 1Y |
British Standard: Fire Tests on Building Materials and Structures |
|
UL Bulletin 94 (V-O) |
Test for Flammability of Plastic Materials for Parts in Devices and Appliances |
|
UL 94 5 VA/5VB |
Safety of Flammability of Plastic Materials for Parts in Devices and Appliances Testing |
|
UL 1887 |
Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics |
|
UL 2043 |
Fire Test for heat and visible smoke release for discreet products and their accessories installed in air-handling spaces |
ADDITIONAL STANDARDS INFORMATION:
Kynar® 740-02 and Kynar® 1000 HD homopolymer, and Kynar Flex® 2850-02 copolymer, were the first thermoplastics to meet the ASTM E84 flame spread and smoke development requirement for materials installed in plenums. These resins meet the criteria by having a flame spread/smoke developed index of less than 25/50, respectively. Some foamed Kynar® parts with a density of 0.03 g/cc meet ASTM E84 with a 10/30 rating.
Kynar® 740 PVDF homopolymer piping, tested in accordance with Underwriters Laboratories Canada (ULC) S102.2M88, meets the flame and smoke criteria with a zero flame spread and 45 smoke generation. Kynar® 740-02 resin meets the Under- writers Laboratories (UL) 1887 Steiner Tunnel Test with a zero flame propagation, 0.02 peak average optical density, and a zero average optical density (0, 0.02, 0).
Kynar® and Kynar Flex® resins meet or exceed the requirements for NFPA 262 (UL 910 Modified Steiner Tunnel Test for Wire and Cable). Kynar® grades that pass the more stringent NFPA 255 (Steiner Tunnel Test for Limited Combustible Applications) are also available. Select Kynar Flex® resins also comply with UL 2024, a test designed for fiber-optic conduit used in plenums.
Testing in accordance with ASTM D2863 indicates that Kynar® homopolymer resin has a limiting oxygen index (LOI) of 43, that is, a 43% oxygen environment is needed for the polymer to continue to burn. Special Kynar® PVDF products are available with an LOI of nearly 100%. Kynar® homopolymer meets UL standards for a burn rating of V-O per UL 94. Also, sheets of metal coated with Kynar 500® resin exhibit zero flame spread and zero smoke developed when tested in accordance with the ASTM E84 tunnel test.
Kynar® homopolymer resins and Kynar Flex® 2850-00, 2750-01, and 3120-10 resins meet Factory Mutual 4910 (FM 4910) flame and smoke test criteria. These recent flame and smoke standards were established for semi-conductor clean room environments where fires can cause high value losses, making it essential that fire be contained within the ignition zone.
Kynar Flex® 2950-05 and Kynar SuperFlex® resins were tested and passed Federal Aviation Regulations (FAR) 25.853 testing standards designed for Federal Aviation Administration (FAA) smoke density and toxicity performance. Please feel free to contact a sales representative for further information related to specific requirements.