MasterFlex J Seal - High performance expansion joint system | South Africa
MasterFlex J Seal Expansion Joint System description
The MasterFlex J Seal expansion joint system comprises a neoprene profile which is fixed in position with a two-part epoxy adhesive type MasterBrace ADH 2200 (Concresive 2200). The profile is occasionally bonded to Wabocrete II nosings but may also be fixed directly to suitable concrete or steel substrates. A profile glue is used for all neoprene-to-neoprene bonding.
USES Masterflex J Seal expansion joint systems are versatile and simple, enabling effective sealing in a wide range of applications including road bridges, car park structures, commercial buildings, stadia and water management structures. Masterflex J Seal expansion joint systems will accommodate movements up to 100%.
MasterFlex J Seal Expansion Joint System Benefits
- Reliable and durable
- Wabocrete II polyurethane mortars nosings with proven reliability
- Versatile performance
- Can accommodate 100% movement
- Differential, rotational and shear movement accommodated
- Wide range of profiles to meet different gap and movement requirements
- Fabricated on site to suit site conditions
- Environmentally friendly
- Cold applied system
MasterFlex J Seal Expansion Joint System Chemical Resistance
| Water | Excellent |
| Acid | Very Good |
| Alkali | Very Good |
| Ketones | Very Good |
| Alcohols | Very Good |
| Synthetic Oils | Good |
| Oxidation | Very Good |
| Fuels | Excellent |
| Weather | Very Good |
MasterFlex J Seal Expansion Joint System Typical Properties*
Substrate preparation:
| Colour: | Cement grey |
| Mixed density: | 1758 kg/m³ at 25°C |
| Flashpoint: | N/A |
| Compressive strength to ASTM D695: | 60 N/mm² at 7 days |
| Bond strength: | Greater than that of the concrete |
| Pot life: At 25°C: At 40°C: | 1 hour 45 minutes 45 minutes |
| Tack free time:
At 25°C: At 40°C: | 7 hours 2 hours 15 minutes |
| Full cure:
At 25°C: At 40°C: | 5 days 3 days |
Rubber:
| Shore A Hardness ASTM
D2240 / BS 903 Part A26: | 65 |
| Specific Gravity ASTM D297 /
BS 903 Part A1: | 1.45 |
| Tensile strength ASTM D412 /
BS 903 Part A2: | 16 N/mm2 |
| Elongation at break ASTM
D412 / BS 903 Part A2: | 300% |
| Compression set (22 hours @
100°C) ASTM D395B / BS 903
Part A6: | 40% |
| After ageing properties ASTM
D573 / BS 903 A19: | 24 hours @ 100°C |
| Change in hardness ASTM
D2240 / BS 903 Part A26: | 6 |
| Change in tensile strength
ASTM D412 / BS 903 Part A2: | -25% |
| Change in elongation ASTM
D412 / BS 903 Part A2: | -35% |
*Properties listed are based on laboratory-controlled tests, are
only for guidance and are not a guarantee of performance.