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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

Solid Silicone Extruded 
6304-NSF
Solid Silicone Extruded 
6304
Solid Silicone Extruded 
6305
Solid Silicone Extruded 
6309
Solid Silicone Extruded 
6404-NSF
Solid Silicone Extruded 
6404
Solid Silicone Extruded 
6409
Solid Silicone Extruded 
6504-NSF
Solid Silicone Extruded 
6504
Solid Silicone Extruded 
6505
Solid Silicone Extruded 
6509
Solid Silicone Extruded 
6604-NSF
Solid Silicone Extruded 
6604
Solid Silicone Extruded 
6609
Solid Silicone Extruded 
6704-NSF
Solid Silicone Extruded 
6704
Solid Silicone Extruded 
6709
Solid Silicone Extruded 
6804-NSF
Solid Silicone Extruded 
6804
Solid Silicone Extruded 
6809