Formex™
GK Product Data
Flame Retardant Polypropylene Sheet
Product Features
- UL 94V-0 Flame Class Rating
- Non-hygroscopic (moisture absorption <0.1%)
- Excellent dielectric strength
- Superior score and fold ability
- Economical
|
 |
|
| |
Test Method |
Formex GK-5BK |
Formex GK-10 |
Formex GK-17 |
| Color |
|
Black |
Natural & Black |
Natural & Black |
| Thickness - inch |
|
.005 ± .001 |
.010 + .003 / -.0015 |
.017 + .003 / -.001 |
| Thickness - millimeter |
|
.127 ± .025 |
.25 + .08 / -.04 |
.43 + .08 / -.03 |
| MECHANICAL
PROPERTIES |
Test Method |
Formex GK-5BK |
Formex GK-10 |
Formex GK-17 |
| Tensile Yield - psi |
ASTM D-882 |
|
|
|
| Machine Direction |
|
4400 |
4400 |
4400 |
| Transverse Direction |
|
3200 |
3200 |
3200 |
| PHYSICAL PROPERTIES |
Test Method |
Formex GK-5BK |
Formex GK-10 |
Formex GK-17 |
| Density - gm/cc |
ASTM D-792 |
1.035 |
1.035 |
1.035 |
| Flammability |
UL 94 |
VTM-0 |
VTM-0 |
V-0 |
| Oxygen Index |
ASTM D-2863 |
29 |
29 |
29 |
| Water Absorption - % change in weight |
ASTM D-570 |
0.06% |
0.06% |
0.06% |
| Heat Deflection Temperature at 66
psi |
ASTM D-648 |
121°C/250°F |
121°C/250°F |
121°C/250°F |
| Relative Thermal Index |
UL 746B |
|
|
|
| Electrical |
|
115°C/239°F |
115°C/239°F |
115°C/239°F |
| Mechanical Without Impact |
|
115°C/239°F |
115°C/239°F |
115°C/239°F |
| Surface Energy - dynes/cm (as produced) |
ASTM D-2578 |
50 outside only** |
50 |
50 |
| ELECTRICAL
PROPERTIES |
Test Method |
Formex GK-5BK |
Formex GK-10 |
Formex GK-17 |
| Dielectric Breakdown - volts |
ASTM D-149 |
13,125 |
22,000 |
24,820 |
| Dielectric Strength - volts/mil |
ASTM D-149 |
2625 |
2200 |
1460 |
| Volume Resistivity - ohm-cm |
ASTM D-257 |
3.97x1015 |
3.97x1015 |
3.97x1015 |
| Dielectric Constant |
ASTM D-150 |
2.30 |
2.30 |
2.30 |
| Dissipation Factor |
ASTM D-150 |
0.0019 |
0.0019 |
0.0019 |
| High Current Arc Ignition - arcs
to ignite |
UL 746A |
200 |
200 |
162 |
| High Voltage Arc Tracking - in/min |
UL 746A |
UL 746A |
0.0 |
0.0 |
| Hot Wire Ignition - seconds |
UL 746A |
9 |
7 |
9 |
| Comparative Tracking Index - volts |
ASTM D-3638 |
600 |
600 |
600 |
| PACKAGING INFORMATION |
Test Method |
Formex GK-5BK |
Formex GK-10 |
Formex GK-17 |
| Standard Configuration |
|
Roll |
Roll |
Roll & Sheet |
| Core ID - inches |
|
6 |
6 |
6 |
| Roll OD - inches (approximate) |
|
18 |
18 |
18 |
| Roll Width - inches |
|
24 |
24 |
24 & 25 |
| Roll Weight - lbs (approximate) |
|
205 |
225 |
200 |
| Length/Roll - feet |
|
4000 |
2000 |
1000 |
| Area/Roll - square feet |
|
8000 |
4000 |
2000 & 2083 |
| Sheet Sizes - inches |
|
- |
- |
24 x 48 |
| |
| **Treated one side only |
| |
|
