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Elmet Technologies

Elkem (Bluestar Silicones) CAF® 1 Silicone Rubber
Categories: Polymer; Thermoset; Silicone; Silicone Rubber

Material Notes: Description: CAF 1 and CAF 1 Extra Fluid are one component room temperature curing silicone elastomers:
  • Acetic.
  • Variable rheology, from self-leveling to fluid, from CAF 1 to CAF 1 Extra Fluid.
  • Red.
Applications: CAF 1 and CAF 1 Extra Fluid are mainly used in sealing and bonding applications in which low viscosity is required. CAF 1 and CAF 1 Extra Fluid are notably used for:
  • Sealing of electrical heating elements (CAF 1 Extra Fluid).
  • Engine sealing in automotive after sales service (CAF 1).
  • General maintenance in the aeronautics industry (CAF 1).
Advantages: CAF 1 and CAF 1 Extra Fluid cure quickly and have very good resistance to high temperature. CAF 1 and CAF 1 Extra Fluid therefore ensure perfect sealing and bonding between different materials subject to thermal strain. CAF 1 and CAF 1 Extra Fluid also have high resistance to chemical agents.

Information provided by Bluestar Silicones

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.15 g/cc1.15 g/ccafter curing; ASTM D297
 1.20 g/cc1.20 g/ccISO R 1183
Brookfield Viscosity 250000 cP250000 cPASTM D445
Storage Temperature 2.00 - 30.0 °C35.6 - 86.0 °F
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 4747ASTM D2240
Tensile Strength 4.40 MPa638 psiASTM D412
Elongation at Break 200 %200 %ASTM D412
100% Modulus 2.00 MPa
@Strain 100 %
290 psi
@Strain 100 %
ASTM D412
Shear Strength 1.80 MPa
@Thickness 1.00 mm
261 psi
@Thickness 0.0394 in
curing 7d at 23°C
Tear Strength 6.00 kN/m34.2 pliASTM D624
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.10e+15 ohm-cm1.10e+15 ohm-cmASTM D257
Dielectric Constant 3.0
@Frequency 1e+6 Hz
3.0
@Frequency 1e+6 Hz
ASTM D150
Dielectric Strength 20.0 kV/mm508 kV/inASTM D419
Dissipation Factor 0.0031
@Frequency 1e+6 Hz
0.0031
@Frequency 1e+6 Hz
ASTM D150
 
Thermal PropertiesMetricEnglishComments
Thermal Conductivity  0.250 W/m-K
@Temperature 150 °C
1.74 BTU-in/hr-ft²-°F
@Temperature 302 °F
Standard NF x 10021
 0.300 W/m-K
@Temperature 30.0 °C
2.08 BTU-in/hr-ft²-°F
@Temperature 86.0 °F
Standard NF x 10021
Maximum Service Temperature, Air  225 °C
@Thickness 2.00 mm,
Time 3.60e+6 sec
437 °F
@Thickness 0.0787 in,
Time 1000 hour
 300 °C
@Thickness 2.00 mm,
Time 259000 sec
572 °F
@Thickness 0.0787 in,
Time 72.0 hour
Peak
Minimum Service Temperature, Air -65.0 °C
@Thickness 2.00 mm,
Time 3.60e+6 sec
-85.0 °F
@Thickness 0.0787 in,
Time 1000 hour
 
Processing PropertiesMetricEnglishComments
Cure Time 7.00 min0.117 hourSkin Formation Time
 360 min
@Thickness 2.00 mm
6.00 hour
@Thickness 0.0787 in
Shelf Life 24.0 Month24.0 Month
 
Descriptive Properties
AppearanceViscous paste
Cohesive failure1curing 7d at 23°C, 1 mm
ColorRed

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