Formex™, Formex™ GK, and Statex™
In the 1980’s the need for a low-cost durable electrical insulation material resulted in the development of a flame retardant plastic material by the ITW Technology Center. Today, three grades of material are marketed under the Formex™, Formex™ GK, and Statex™ brand names. All are UL recognized electrical insulators.
Formex™, Formex™ GK, and Statex™ materials are used to comply with UL, CSA, IEC, VDE, TUV, BSR or MITI standards when there is a need for electrical insulators and barriers. This unique product family has successfully replaced a variety of flame retardant sheet materials including polycarbonate, polyester, PVC and aramid papers.
Formex , Formex GK and Statex have the following features:
• UL 94V-0 Flame Class Rating
• Non-hygroscopic (moisture absorption < 0.1%)
• Excellent dielectric strength
• Superior score and folding ability
• Economical
*Product is line-marked on treated side with carbonless black ink.
Notice: The above information is believed to be accurate and reliable.
We assume no responsibility for end use applications and no performance warranty is expressed or implied.
Static Dissipative Flame Retardant Polypropylene Sheet | ||||
---|---|---|---|---|
PROPERTIES | TEST METHOD | STATEX-10 | STATEX-18 | STATEX-31 |
Color | Natural* | Natural* | Natural* | |
Thickness - inch | .010+.003/-.0015 | .018+.004/-.002 | .031+.004/-.000 | |
Thickness - millimeter | .25+.08/-.04 | .46+.10/-.05 | .79+/10/-.00 | |
MECHANICAL PROPERTIES | ||||
Tensile Yield - psi | ASTM D-882 | |||
Machine Direction | 4800 | 4800 | 4800 | |
Transverse Direction | 3600 | 3600 | 3600 | |
PHYSICAL PROPERTIES | ||||
Density - gm/cc | ASTM D-792 | 0.988 | 0.988 | 0.988 |
Flammability | UL 94 | VTM-0 | V-0 | V-0 |
Oxygen Index | ASTM D-2863 | 28 | 28 | 28 |
Water Absorption - % change in weight | ASTM D-570 | 0.01% | 0.01% | 0.01% |
Heat Deflection Temperance at 66 psi | ASTM D-648 | 106°C/223°F | 106°C/223°F | 106°C/223°F |
Relative Thermal Index | UL 746B | |||
Electrical | 95°C/203°F | 100°C/212°F | 101°C/223°F | |
Mechanical Without Impact | 95°C/203°F | 100°C/212°F | 101°C/223°F | |
ELECTRICAL PROPERTIES | ||||
Static Decay - seconds (Federal Test Method 101C) | ASTM D-257 | <2 | <2 | <2 |
Surface Resistivity - ohms/square | ASTM D-257 | 109 to 1011 | 109 to 1011 | 109 to 1011 |
Dielectric Breakdown - volts | ASTM D-149 | 17,500 | 27,540 | 37,200 |
Dielectric Strength - volts/mil | ASTM D-149 | 1750 | 1530 | 1200 |
Volume Resistivity - ohm-cm | ASTM D-257 | 146x1015 | 146x1015 | 146x1015 |
Dielectric Constant | ASTM D-150 | 2.3 | 2.3 | 2.3 |
Dissipation Factor | ASTM D-150 | 0.0009 | 0.0009 | 0.0009 |
High Current Are Ignition - arcs to ignite | UL 746A | 113 | 23 | 195 |
High Voltage Are Tracking - in/min | UL 746A | 0 | 0 | 0 |
Hot Wire Ignition - seconds | UL 746A | 6 | 11 | 21 |
ASTM D-3638 | 600 | 600 | 600 |