FEATURES APPLICATIONS
XIAMETER® LS-70 Fluorosilicone Rubber is used for making
molded, extruded, and calendered rubber goods.
TYPICAL PROPERTIES
Specification Writers: These values are not intended for use in preparing
specifications. Please contact your local XIAMETER® sales representative prior to writing specifications on this product.
CTM1/ASTM
1CTMs (Corporate Test Methods) are similar to standard ASTM tests in most instances.
Copies of CTMs are available upon request.
Properties obtained using 1.0 phr STI-V on 0.075” thick (1.91mm) slabs press cured 10 min. at 171°C (340°F); slabs were not post cured.
DESCRIPTION
general-purpose, 70 durometer stock that exhibits excellent
fluid resistance to most hydrocarbon and silicone fluids.
175°C (-81 to 347°F) under immersion conditions, and
Table I: Properties obtained with Typical Molding- and Extrusion-Type Vulcanization Agents These values are not intended for use in preparing specifications.
Formulations/Vulcanizing Agents Test Methods/Physical Properties1
Compression Set, after 22 hrs/177°C (350°F)
1Obtained on slabs 0.075” thick; formulated, press cured, and post cured as indicated. Suitable for making many
Vulcanizing Agents QUALITY CONTROL PROCEDURES
Other vulcanizing agents are discussed in the fabrication
HOW TO USE FLUID RESISTANCE Compounding Blending PRODUCT SAFETY INFORMATION Fabricating
XIAMETER is a registered trademark of Dow Corning Corporation.
Dow Corning are registered trademarks of Dow Corning Corporation.
2011 Dow Corning Corporation. All rights reserved.
Table II: Fluid Resistance of XIAMETER LS-70 Fluorosilicone Rubber1 These values are not intended for use in preparing specifications.
Durometer, Strength, Elongation Immersion , Percent Conditions
1Obtained by adding 1.0 phr STI-V to XIAMETER LS-70 Fluorosilicone Rubber. Slabs 0.075” thick were press cured 10 min. at 171°C (340°F); and post-cured 4 hrs. at 200°C (392°F) prior to testing. Table III: Heat Resistance of XIAMETER LS-70 Fluorosilicone Rubber1 These values are not intended for use in preparing specifications.
Durometer, Points Tensile Strength, Elongation, Percent Heat-Aging Conditions Percent Change
1Obtained by adding 1.0 phr STI-V to XIAMETER LS-70 Fluorosilicone Rubber. Slabs 0.075” thick were press cured 10 min. at 171°C (340°F) and post-cured 4 hrs. at 200°C (392°F) prior to testing
XIAMETER is a registered trademark of Dow Corning Corporation.
Dow Corning are registered trademarks of Dow Corning Corporation.
2011 Dow Corning Corporation. All rights reserved.
Table IV: typical Vulcanizing Agents for XIAMETER LS-70 Fluorosilicone Rubber These values are not intended for use in preparing specifications.
Recommended Physical Concentrations, Fabrication Peroxides Trade Names Conditions
Luperco is a trademark of Arkema, Inc. Di-Cup is a registered trademark of Geo Specialty Chemicals, Inc. LIMITATIONS DOW CORNING SPECIFICALLY DISCLAIMS ANY OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY.
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limited to refund of purchase price or replacement of any
and is believed to be accurate. However, because conditions and methods of use of our products are beyond our control, this information should not be used in substitution for
XIAMETER is a registered trademark of Dow Corning Corporation.
Dow Corning are registered trademarks of Dow Corning Corporation.
2011 Dow Corning Corporation. All rights reserved.
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