Description
A two-component, room temperature, addition cure silicone material. The cured rubber has excellent mechanical properties, good shelf-life stability, excellent physical properties and resin resistance. This material is a good choice for the molding of furniture, picture frames and architectural materials. QM 254 is exceptionally good where high durometer and dimensional stability are required. This material also has excellent thermal 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 durometer
- Low viscosity
- Casting resin resistance
- Fast demold time
- Excellent dimensional and thermal stability
MAIN APPLICATIONS
- Molds for architectural replication
- Molds for polyester, epoxy resin casting, and rigid or foam polyurethane
- Molds for technical articles and prototypes
- Molds for furniture and picture frame replication
| Uncatalyzed | |||||
| TEST | QM 254 A | QM 254 B | |||
| Appearance | Beige | Black | |||
| Viscosity | 45,000 cps | 6,000 cps | |||
| Specific Gravity | 1.26 | 1.04 | |||
| Catalyzed | |
| MIX RATIO 10:1 by weight | |
| PROPERTY | RESULT |
| Catalyzed Color | Black |
| Viscosity | 35,000 cps |
| Work life at 25°C | 60 minutes |
| Demold Time | 8 to 12 hours |
| Cured Properties | |
| 3 Days at 25°C | |
| Durometer, Shore A | 60 |
| Tensile Strength | 1,000 psi |
| Elongation | 140% |
| Tear | 90 ppi |
| Linear Shrinkage | < 0.1 % |
| Useful temperature range | -55°C – 204°C |
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