TekNational, Inc.
Formex™ GK/Formex™ Product Data

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

 

Flame Retardant Polypropylene Sheet
PROPERTIESTEST METHODFORMEX GK-5BKFORMEX GK-10FORMEX GK-17FORMEX GK-30
ColorBlackNatural & BlackNatural & BlackNatural & Black
Thickness - inch.005+/-.0010.010+.003/-.0015.017+.003/-.001.030+/-.002
Thickness - millimeter.127+/-.025.25+.08/-.04.43+.08/-.03.76+/-.05
MECHANICAL PROPERTIES
Tensile Yield - psiASTM D-882
Machine Direction4400440044004400
Transverse Direction3200320032003200
PHYSICAL PROPERTIES
Density - gm/ccASTM D-7921.0351.0351.0351.035
FlammabilityUL 94VTM-0VTM-0V-0V-0
Oxygen IndexASTM D-286329292929
Water Absorption - % change in weightASTM D-5700.06%0.06%0.06%0.06%
Heat Deflection Temperance at 66 psiASTM D-648121_C/250_F121_C/250_F121_C/250_F121_C/250_F
Relative Thermal IndexUL 746B
Electrical115_C/239_F115_C/239_F115_C/239_F115_C/239_F
Mechanical Without Impact115_C/239_F115_C/239_F115_C/239_F115_C/239_F
Surface Energy - dynes/cm (as produced)ASTM D-2578>/- 50 outside only**>/-50>/-50>/-50
ELECTRICAL PROPERTIES
Dielectric Breakdown - voltsASTM D-14913,12522,00024,82032,400
Dielectric Strength - volts/milASTM D-1492625220014601080
Volume Resistivity - ohm-cmASTM D-2573.97X10__3.97X10__3.97X10__3.97X10__
Dielectric ConstantASTM D-1502.32.32.32.3
Dissipation FactorASTM D-1500.00190.00190.00190.0019
High Current Are Ignition - arcs to igniteUL 746A200200162200
High Voltage Are Tracking - in/minUL 746A0000
Hot Wire Ignition - secondsUL 746A97912
Comparative Tracking Index - voltsASTM D-3638600600600600
PACKAGING INFORMATION
Standard ConfigurationRollRollRoll & SheetRoll & Sheet
Core ID - inches6666
Roll OD - inches (approximate)18181818
Roll Width - inches242424x2524
Roll Weight - lbs (approximate)205225200200
Length/Roll - feet400020001000600
Area/Roll - square feet800040002000x20831200
Sheet Sizes - inches --24x2824x48,48x96*
Flame Retardant Polypropylene Sheet (continued)
PROPERTIESTEST METHODFORMEX GK-40FORMEX GK-62FORMEX-94BKFORMEX-125Bk
ColorNatural & BlackNatural & BlackBlackBlack
Thickness - inch.040+/-.002.062+/-.004.094+/-.004.125+/-.007
Thickness - millimeter1.20+/-.051.57+/-.102.38+/-.103.18+/-.18
MECHANICAL PROPERTIES
Tensile Yield - psiASTM D-882
Machine Direction4400440048004800
Transverse Direction3200320036003600
PHYSICAL PROPERTIES
Density - gm/ccASTM D-7921.0351.0350.9880.988
FlammabilityUL 94V-0V-0V-0V-0
Oxygen IndexASTM D-286329292828
Water Absorption - % change in weightASTM D-5700.06%0.06%0.01%0.01%
Heat Deflection Temperance at 66 psiASTM D-648121°C/250°F121°C/25°F106°C/22°F106°C/223°F
Relative Thermal IndexUL 746B
Electrical115°C/239°F115°C/239°F110°C/230°F110°C/230°F
Mechanical Without Impact115°C/239°F115°C/239°F110°C/230°F120°C/248°F
Surface Energy - dynes/cm (as produced)ASTM D-2578>/- 50 >/-50>/-50>/-50
ELECTRICAL PROPERTIES
Dielectric Breakdown - voltsASTM D-14937,80045,26056,40062,500
Dielectric Strength - volts/milASTM D-149945730600500
Volume Resistivity - ohm-cmASTM D-2573.97X10__3.97X10__146X10__146X10__
Dielectric ConstantASTM D-1502.32.32.32.3
Dissipation FactorASTM D-1500.00190.00190.00090.0009
High Current Are Ignition - arcs to igniteUL 746A200200200200
High Voltage Are Tracking - in/minUL 746A0000
Hot Wire Ignition - secondsUL 746A12123036
Comparative Tracking Index - voltsASTM D-3638600600600600
PACKAGING INFORMATION
Standard ConfigurationSheetSheetSheetSheet
Core ID - inches----
Roll OD - inches (approximate)----
Roll Width - inches----
Roll Weight - lbs (approximate)----
Length/Roll - feet----
Area/Roll - square feet----
Sheet Sizes - inches 24x48, 48x96*24x48, 48x96*24x2824x48

* Black only

** Treated one side only

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.