QM 140T is a two-component, translucent, room temperature condensation cure, silicone material. When catalyzed with QM Cat Clear Thixo 2 the resulting material is extremely thixotropic. QM 140T is also available for non-thixotropic, flowable, applications when catalyzed with QM Cat Clear. The cured rubber has excellent properties and good shelf life stability.
| Packing | Weight | Mix Ratio |
| Gallon Pail Kit | 11 lbs | 10:1 |
| 5 Gallon Pail Kit | 44 lbs | 10:1 |
| 55 Gallon Drum Kit | 550 lbs | 10:1 |
KEY FEATURES
High tear strength
High thixotropy (if desired)
Fast demold time
Excellent dimensional stability
MAIN APPLICATIONS
Molds for polyester, polyurethane and epoxy resin castings
Designed specifically for vacuum bag applications
| Uncatalyzed | |||
| TEST | QM 140T | QM CAT CLEAR | QM CAT CLEAR THIXO 2 |
| Color | Translucent | Translucent | Translucent |
| Viscosity | 120,000 cps | 100 cps | 200 cps |
| Specific Gravity |
1.15 |
1.00 | 1.03 |
MIX RATION 10:1 by weight
| Catalyzed | ||
| PROPERTY | QM CAT CLEAR | QM CAT CLEAR THIXO 2 |
| Color | Translucent | Translucent |
| Catalyzed Viscosity | Flowable | Thixotropic, easily workable |
| Specific Gravity |
1.13 |
1.13 |
| Work life at 25°C | 20 minutes | 20 minutes |
| Tack-Free Time |
4 to 6 hours |
4 to 6 hours |
| Demold Time |
12 to 16 hours |
8 to 12 hours |
3 Days at 25°C
| Catalyzed Properties | ||
| PROPERTY | QM CAT CLEAR | QM CAT CLEAR THIXO 2 |
| Durometer, Shore A | 40 | 40 |
| Tensile Strength | 650 psi | 500 psi |
| Elongation |
500% |
350% |
| Tear B | 175 ppi | 70 ppi |
| Linear Shrinkage |
< 0.3 % |
< 0.3% |
| Useful temperature |
- 50 – 150°C |
- 50 – 150°C |
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