Bellofram Dense (Solid Silicone) Extruded Products
With expertise in custom formulations and toolmaking, Bellofram Silicones produces solid silicone elastomer extrusions in almost limitless shapes and hardnesses in diameters up to 2.500”. Our extruded rubber cords, tubes, and custom profiles are used to make gaskets, seals, O-rings, and grips and handles that ensure worker safety when operating hoses and nozzles. Larger diameter rubber extrusions are popular choices as bumpers and guards for equipment protection.
We offer solid silicone rubber extruded materials that can withstand 500,000 flexes, and commercial-grade silicones that are maintenance-free in less-demanding environments. A fully approved NSF 51 version produced with FDA ingredients is also available, in applications where FDA compliance is required. Bellofram Silicones solid extruded products are highly resistant to compression set and extreme temperatures.
Multiple extrusion manufacturing and production lines allow us to produce virtually any required quantities with very short lead times.
| MATERIAL PROPERTIES OF BELLOFRAM HIGH TEAR AND FLEX RESISTANT SOLID SILICONES EXTRUDED PRODUCTS | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SOLID SILICONE EXTRUDED PRODUCTS TO SPEC TO SPEC A-A-59588 CL3B, GR30, GR50 | ASTM D395 | Heat Age, 70 Hours @ +200°C (ASTM D573) | ASTM D2137 | ASTM D471 | ASTM D813 | ASTM D2632 | ||||||
| COMPOUND MODEL | DUROMETER, SHORE "A" | TENSILE STRENGTH min MPa (PSI) | ELONGATION % min. | TEAR RESISTANCE, kN/m (ppi) | COMPRESSION SET, 70 Hours @ +100°C | HARDNESS CHANGE | TENSILE CHANGE | ELONGATION CHANGE | BRITTLE POINT, min. °C (°F) | WATER IMMERSION, VOLUME CHANGE % | DeMATTIA FLEX, (1/2 inch max crack growth) | IMPACT RESILIENCE, min % |
| 6305 | 30 ± 5 | 6.9 (1000) | 500 | 26.25 (150) | 25 | ± 5 | -20% | -35% | -70 (-94) | +5 | 500,000 cycles | 40 |
| 6505 | 50 ± 5 | 8.28 (1200) | 500 | 26.25 (150) | 20 | ±10 | -25% | -30% | -70 (-94) | +5 | 140,000 cycles | 45 |
| MATERIAL PROPERTIES OF BELLOFRAM SOLID SILICONE EXTRUDED PRODUCTS | ||||||
| COMPOUND MODEL | ASTM D2000-08 DESIGNATION | DUROMETER SHORE "A" | TENSILE (PSI) | HEAT AGE, 70 Hours @ +225 °C | OIL IMMERSION IRM 903 70 hrs @+150 °C | COMPRESSION SET, 22 Hours @ +175°C |
| 6304 | ASTM D2000 M1GE305 | 30 ± 5 | 1175 | Change in Tensile Strength, ±30% Change in Elongation, -50% Change in Durometer, ±15 pts | Volume change, +63% | 28% |
| 6404 | ASTM D2000 M1GE405 | 40 ± 5 | 1150 | Volume change, +61% | 42% | |
| 6504 | ASTM D2000 M1GE505 | 50 ± 5 | 930 | Volume change, +59% | 61% | |
| 6604 | ASTM D2000 M1GE605 | 60 ± 5 | 925 | Volume change, +46% | 33% | |
| 6704 | ASTM D2000 M1GE705 | 70 ± 5 | 820 | Volume change, +41% | 42% | |
| 6804 | ASTM D2000 M1GE805 | 80 ± 5 | 810 | Volume change, +35% | 40% | |
| MATERIAL PROPERTIES OF BELLOFRAM FLAME RETARDANT SOLID SILICONE EXTRUDED PRODUCTS | |||||||
| COMPOUND MODEL | ASTM D2000-08 DESIGNATION | DUROMETER SHORE "A" | TENSILE MPa (PSI) | HEAT AGE, 70 Hours @ +225 °C | OIL IMMERSION IRM 903 70 hrs @+150 °C | COMPRESSION SET, 22 hrs @+175°C | MEETS BURN REQUIREMENTS OF UL 94 V-0 |
| 6309 | ASTM D2000 M1GE305 | 30 ± 5 | 5 ( 725 ) | Change in Tensile Strength, ±30% Change in Elongation, -50% Change in Durometer, ±15 pts | Volume change, +80% | 50% max. | PASS |
| 6409 | ASTM D2000 M1GE405 | 40 ± 5 | 50% max. | PASS | |||
| 6509 | ASTM D2000 M1GE505 | 50 ± 5 | 70% max. | PASS | |||
| 6609 | ASTM D2000 M1GE605 | 60 ± 5 | 70% max. | PASS | |||
| 6709 | ASTM D2000 M1GE705 | 70 ± 5 | 50% max. | PASS | |||
| 6809 | ASTM D2000 M1GE805 | 80 ± 5 | 50% max. | PASS | |||
| MATERIAL PROPERTIES OF BELLOFRAM NSF/ANSI 51 CERTIFIED SOLID SILICONE EXTRUDED PRODUCTS | |||||||
| COMPOUND MODEL | ASTM D2000-08 DESIGNATION | DUROMETER SHORE "A" | TENSILE (PSI) | HEAT AGE, 70 Hours @ +225 °C | OIL IMMERSION IRM 903 70 hrs @ +150 °C | COMPRESSION SET, 22 Hrs @+175°C | NSF/ANSI 51 CERTIFIED |
| 6304-NSF | ASTM D2000 M1GE305 | 30 ± 5 | 1175 | Change in Tensile Strength, ±30% Change in Elongation, -50% Change in Durometer, ±15 pts | Volume change +63% | 28% | Yes |
| 6404-NSF | ASTM D2000 M1GE405 | 40 ± 5 | 1150 | Volume change, +61% | 42% | Yes | |
| 6504-NSF | ASTM D2000 M1GE505 | 50 ± 5 | 930 | Volume change, +59% | 61% | Yes | |
| 6604-NSF | ASTM D2000 M1GE605 | 60 ± 5 | 925 | Volume change, +46% | 33% | Yes | |
| 6704-NSF | ASTM D2000 M1GE705 | 70 ± 5 | 820 | Volume change, +41% | 42% | Yes | |
| 6804-NSF | ASTM D2000 M1GE805 | 80 ± 5 | 810 | Volume change, +35% | 40% | Yes | |
MATERIAL PROPERTIES FOR
DENSE (SOLID SILICONE) EXTRUDED PRODUCTS
