Tough-Seal 21 Specifications
(Typical)
| Physical Properties | ||
| Color, Part A | Off White | |
| Viscosity at 25°C, cP, Part A, (RVT #5, 20 RPM) | 7,000 | |
| Specific Gravity at 25°C, Part A | 1.32 | |
| Density at 25°C, lbs/gal, Part A | 11.0 | |
| Color, Part B | Black | |
| Viscosity at 25°C, cP, Part B, (RVT #5, 20 RPM) | 11,000 | |
| Specific Gravity at 25°C, Part B | 1.28 | |
| Dielectric Constant, 25°C - 60 Hz | 5.75 | |
| Dissipation Factor, 25°C - 1 MHz | 0.026 | |
| Dissipation Factor, 25°C - 1 kHz | 0.028 | |
| Dissipation Factor, 25°C - 60 Hz | 0.064 | |
| Heat Capacity Cp, 25°C, J/g°K | 1.37 | |
| Thermal Conductivity, 25°C, W/m°K | 0.26 | |
 |
Coefficient of Thermal Expansion, ppm/ °C | |
| (-) 65°C to 75°C | 135 | |
| 75°C to 100°C | 0 | |
| 100°C to 150°C | 75 | |
| Coefficient of Thermal Expansion, ppm/°F | ||
| (-) 85°F to 167°F | 75 | |
| 167°F to 212°F | 0 | |
| 212°F to 302°F | 42 | |
| Hardness vs Temperature | ||
 |
(-75°C / -103°F) | 88 A |
| (-25°C / -13°F) | 75 A | |
| 5°C / 41°F | 69 A | |
| 25°C / 77°F | 64 A | |
| 50°C / 122°F | 62 A | |
| 66°C / 150°F | 61 A | |
| 80°C / 176°F | 62 A | |
| 100°C / 212°F | 57 A | |
| 120°C / 248°F | 51 A | |
| 150°C / 302°F | 47 A | |
| Hardness vs Ambient Cure Time | ||
|
|
1 hour | 15 A |
| 2 hours | 26 A | |
| 4 hours | 31 A | |
| 8 hours | 35 A | |
| 12 hours | 35 A | |
| 1 day | 39 A | |
| 2 day | 46 A | |
| 3 days | 52 A | |
| 4 days | 57 A | |
| 1 week | 60 A | |
| 1 month | 68 A | |
| Mechanical Properties | ||
| Tensile Strength per ASTM D638, 25°C, PSI | 450 | |
| Elongation per ASTM D638, Type I, 0.125 in, 25°C | 225% | |
| Co=Cohesive Ad=Adhesive | ||
| Tensile Lap Shear Strength per ASTM D1002, 25°C, psi ** | ||
 |
Aluminum Bare | 540 Co |
| Steel Bare | 530 Ad | |
| Steel Ground | 480 Co | |
| Primed Steel | 530 Co | |
| Galvanized Steel | 560 Co | |
| Tin Plated Steel | 470 Co | |
| Chrome Plated Steel | 560 Co | |
| Tensile Lap Shear Strength per ASTM D3163, 25°C, psi ** | ||
 |
FRP - Polyester Fiberglass | 540 Co |
| Garolite G-9 Melamine/Glass | 530 Co | |
| Garolite G-10 Epoxy/Glass | 550 Co | |
| Garolite XX Phenolic/Paper | 570 Co | |
| Tensile Lap Shear Strength per ASTM D3163, 25°C, psi ** | ||
 |
Acrylic | 560 Co |
| Acrylic/PVC | 430 Co | |
| PVC - Polyvinyl Chloride | 530 Co | |
| CPVC - Chlorinated PVC | 660 Co | |
| ABS - Acylonitrile Butadiene Styrene | 500 Co | |
| PETG - Polyethylene Terephthalate | 610 Co | |
| Lexan - Polycarbonate | 520 Co | |
| Nylon 6/6 - Polyamide | 520 Co | |
| Polypropylene | 50 Ad | |
| Polyethylene LDPE | 20 Ad | |
| Polyethylene HDPE | 40 Ad | |
| Teflon PTFE - Polytetrafluoroethylene | 40 Ad | |
| Noryl - Polyphenylene Oxide/Polystyrene | 220 Ad | |
| Ultem - Polyetherimide | 540 Co | |
| **20 mil Bondline, 1 in x 4 in Adherands, 1 in Overlap | ||
