Tough-Seal 31 Specifications
(Typical)
| Physical Properties | ||
| Color, Part A | Off White | |
| Viscosity at 25°C, cP, Part A, (RVT #5, 20 RPM) | 3,500 | |
| Specific Gravity at 25°C, Part A | 1.15 | |
| Density at 25°C, lbs/gal, Part A | 9.6 | |
| Color, Part B | Black | |
| Viscosity at 25°C, cP, Part B, (RVT #5, 20 RPM) | 7,000 | |
| Specific Gravity at 25°C, Part B | 1.02 | |
| Density at 25°C, lbs/gal, Part B | 8.5 | |
| Color, Mix | Grey / Black | |
| Viscosity at 25°C, cP, Mix, (RVT #5, 20 RPM) | 5,000 | |
| Specific Gravity at 25°C, Mix | 1.07 | |
| Density at 25°C, lbs/gal, Mix | 8.9 | |
| Mix Ratio by Volume | 1A to 2B | |
| Mix Ratio by Weight | 57A to 100B | |
| Gel Time at 25°C, Minutes, 100 grams | 10 | |
| Shelf Life, Ambient, Part A Bulk (15°C to 35°C) | 3 Months | |
| Shelf Life, Ambient, Part B Bulk (15°C to 35°C) | 12 Months | |
| Shelf Life, Cold, Part A Bulk (-18°C to 3°C) | 12 Months | |
| Shelf Life, Cold, Part B Bulk (-18°C to 3°C) | 12 Months | |
| Electrical & Thermal Properties | ||
| Dielectric Strength, 25°C, Volts/mil | 325 | |
| Volume Resistivity, 25°C, Ohm-cm x (10)12 | 2.10 | |
| Dielectric Constant, 25°C - 1 MHz | 4.75 | |
| Dielectric Constant, 25°C - 1 kHz | 5.20 | |
| Dielectric Constant, 25°C - 60 Hz | 5.35 | |
| Dissipation Factor, 25°C - 1 MHz | 0.024 | |
| Dissipation Factor, 25°C - 1 kHz | 0.021 | |
| Dissipation Factor, 25°C - 60 Hz | 0.044 | |
| Heat Capacity Cp, 25°C, J/g°K | 1.75 | |
| Thermal Conductivity, 25°C, W/m°K | 0.18 | |
| Coefficient of Thermal Expansion, ppm/ °C | ||
| (-) 65°C to 75°C | 168 | |
| 75°C to 100°C | 168 | |
| 100°C to 150°C | 168 | |
| Coefficient of Thermal Expansion, ppm/°F | ||
| (-) 85°F to 167°F | 93 | |
| 167°F to 212°F | 93 | |
| 212°F to 302°F | 93 | |
| Hardness vs Temperature | ||
 |
(-75°C / -103°F) | 87 A |
| (-25°C / -13°F) | 50 A | |
| 5°C / 41°F | 44 A | |
| 25°C / 77°F | 37 A | |
| 50°C / 122°F | 37 A | |
| 66°C / 150°F | 37 A | |
| 80°C / 176°F | 37 A | |
| 100°C / 212°F | 37 A | |
| 120°C / 248°F | 35 A | |
| 150°C / 302°F | 33 A | |
| Hardness vs Ambient Cure Time | ||
|
|
1 hour | 4 A |
| 2 hours | 6 A | |
| 4 hours | 11 A | |
| 8 hours | 14 A | |
| 12 hours | 14 A | |
| 1 day | 16 A | |
| 2 day | 19 A | |
| 3 days | 22 A | |
| 4 days | 23 A | |
| 1 week | 30 A | |
| 1 month | 41 A | |
| Mechanical Properties | ||
| Tensile Strength per ASTM D638, 25°C, PSI | 800 | |
| Elongation per ASTM D638, Type I, 0.125 in, 25°C | 400% | |
| Co=Cohesive Ad=Adhesive | ||
| Tensile Lap Shear Strength per ASTM D1002, 25°C, psi ** | ||
 |
Aluminum Bare | 470 Co |
| Steel Bare | 260 Ad | |
| Steel Ground | 280 Ad | |
| Primed Steel | 150 Ad | |
| Galvanized Steel | 260 Ad | |
| Tin Plated Steel | 250 Co | |
| Chrome Plated Steel | 250 Co | |
| Tensile Lap Shear Strength per ASTM D3163, 25°C, psi ** | ||
 |
FRP - Polyester Fiberglass | 180 Ad |
| Garolite G-9 Melamine/Glass | 130 Ad | |
| Garolite G-10 Epoxy/Glass | 130 Ad | |
| Garolite XX Phenolic/Paper | 190 Ad | |
| Tensile Lap Shear Strength per ASTM D3163, 25°C, psi ** | ||
 |
Acrylic | 110 Ad |
| Acrylic/PVC | 120 Ad | |
| PVC - Polyvinyl Chloride | 150 Ad | |
| CPVC - Chlorinated PVC | 170 Ad | |
| ABS - Acylonitrile Butadiene Styrene | 120 Ad | |
| PETG - Polyethylene Terephthalate | 100 Ad | |
| Lexan - Polycarbonate | 90 Ad | |
| Nylon 6/6 - Polyamide | 160 Ad | |
| Polypropylene | 40 Ad | |
| Polyethylene LDPE | 10 Ad | |
| Polyethylene HDPE | 40 Ad | |
| Teflon PTFE - Polytetrafluoroethylene | 20 Ad | |
| Noryl - Polyphenylene Oxide/Polystyrene | 170 Ad | |
| Ultem - Polyetherimide | 100 Ad | |
| **20 mil Bondline, 1 in x 4 in Adherands, 1 in Overlap | ||
