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v-340-kit

V-340 Silicone Rubber Compound

SKU: V-340. Category: .

V-340 is a two component, addition reaction, room temperature or heat accelerated cure silicone rubber compound. It is designed as a variable hardness rubber with high strength properties, long library life, excellent detail reproduction, excellent release characteristics, and improved resistance to inhibition. The specific hardness is dependent on which curing agent is used. V-340 is an excellent choice for pattern shop, model shop, and Stereolithography service bureau mold making and tooling

TYPICAL APPLICATIONS

  • Conventional production and prototype molds
  • Finished rubber parts
  • Stereolithography (SLA) molds
  • Casting Architectural molding

SHELF LIFE
Twenty four (24) months from date of manufacture when stored at 24°C (75°F) in original unopened containers.

TYPICAL PROPERTIES – AS SUPPLIED
Part A – Base Component
Color Beige
Consistency Pourable
Viscosity, cP. (mPa.s) 45,0000
Part B Curing Agent
Color CA-45: Blue
Color CA-55: Black
TYPICAL CATALYZED PROPERTIES
Mixed at 24°C (75°F) and 50% R.H
Mix Ratio,A:B(Parts by weight) 10:1
Viscosity, cP. (mPa.s) 30,000
Pot Life, minutes(1) 100
Coverage – cu. in/lb. (cc/kg) 21.3 (769)
Coverage – cu. in/lb. (cc/kg) -50 to 150 (-58 to 302)
Coefficient of Thermal Expansion in/in/°C 2.5 x 10^-4

(1) Time at which material gels

TYPICAL ELECTRICAL PROPERTIES
Dielectric Constant, 1kHz ASTM D150 3.4
Dissipation Factor, 1kHz ASTM D150 0.007
Dielectric Strength, 75 mil V/mil ASTM D149 550
Volume Resistivity, ohm-cm ASTM D257 1 x 10^15
TYPICAL PROPERTIES OF CURED RUBBER
Cured 24 hours at 25°C (77°F)
CA-45 CA-55
Mix Ratio, A:B 10:1 10:1
Color Blue Black
Specific Gravity 1.3 1
Hardness (Shore A) (4) ASTM D2240 45 55
Tensile Strength, psi (N/mm^2) ASTM D412 800 (5.5) 700 (4.8)
Elongation (%);ASTM D412 400 300
Tear Resistance, ppi (N/mm) ASTM D624, Die B 150 (26.3) 50 (8.8)

**NOTE: Cure time may be accelerated by oven curing at 49-65°C (120-150°F) for 2-3 hours. HEAT CURING WILL EFFECT PHYSICAL PROPERTIES