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Ecoflex™ 5

Mold Max™ XLS™ II vs. Ecoflex™ 5 vs. TASK™ 14

Super-Soft, Addition Cure Silicone Rubber

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TASK™ 14

Mold Max™ XLS™ II vs. Ecoflex™ 5 vs. TASK™ 14Ecoflex™ 5

Semi-Rigid Black Urethane Casting Resin

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Mold Max™ XLS™ II

Mold Max™ XLS™ II vs. Ecoflex™ 5 vs. TASK™ 14Ecoflex™ 5 versus TASK™ 14

eXtra Low-Shrinkage Silicone Mold Rubber

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
  • Silicone Rubber - Tin Cure
Mixed Viscosity13,000 cps800 cps30,000 cps
Mix Ratio By Volume1A:1BN/A (gram scale required)N/A (gram scale required)
Pot Life1 minute10 minutes40 minutes
Cure Time5 minutes45 minutes24 hours
Shore D Hardness50
Shore A Hardness530
ColorTranslucentBlackBlue
Tensile Strength350 psi1,800 psi550 psi
Elongation @ Break1,000 %125 %375 %
Disclaimer
Although we do our best to ensure the accuracy of this Compare Tool, Smooth-On offers no warranty either expressed or implied as to the reliability of the information contained herein. Smooth-On assumes no liability for loss or damage associated with use of the Compare Tool. If this is a critical project, we encourage you to review all of the technical data below and contact our Technical Service department with any questions or concerns.

All Technical Data

Ecoflex™ 5TASK™ 14Mold Max™ XLS™ II
Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Resins
  • Silicone Rubber - Tin Cure
Mixed Viscosity13,000 cps800 cps30,000 cps
Mix Ratio By Volume1A:1B
Mix Ratio By Weight1A:1B100A:120B100A:10B
Pot Life1 minute10 minutes40 minutes
Cure Time5 minutes45 minutes24 hours
Shore D Hardness50
Shore A Hardness530
Specific Gravity1.07 g/cc1.15 g/cc1.22 g/cc
Specific Volume25.8 cu. in./lb.24.1 cu. in./lb.22.7 cu. in./lb.
ColorTranslucentBlackBlue
Die B Tear Strength75 pli110 pli
Tensile Strength350 psi1,800 psi550 psi
Elongation @ Break1,000 %125 %375 %
100% Modulus15 psi95 psi
Shrinkage<.001 in. / in.0.0035 in. / in.0.001 in. / in.
Useful Temperature (min)-65 °F-65 °F
Useful Temperature (max)450 °F400 °F
Volume Resistivity9.000000E+15 ohm/cm
Dielectric Strength>360 volts/mil
Dielectric Constant, 100Hz3.4
Dissipation Factor, 100Hz0.002
Thermal Conductivity0.24 W/M*K

Product Description

Ecoflex™ 5

Ecoflex™ rubbers are platinum-catalyzed silicones that are versatile and easy to use. Ecoflex™ rubbers are mixed 1A:1B by weight or volume and cured at room temperature with negligible shrinkage.  Low viscosity ensures easy mixing and de-airing. Dispense using our convenient dispensing cartridges. Cured rubber is very soft, very strong and very “stretchy”, stretching many times its original size without tearing and will rebound to its original form without distortion.

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TASK™ 14

TASK™ 14 is a fast setting two-component urethane that cures quickly to black semi-rigid plastic. TASK™ 14 offers a longer pot life (10 minutes) and demold time of 45 minutes.

With a Shore value of 50D, these semi-rigid plastics are used for a variety of industrial applications including fast mold making, fast model duplication, prototyping, durable miniatures, black props and special effects, or making parts that are impact resistant. Fully cured castings are tough, durable and chemical resistant.

For Best Results… Do not cast TASK™ 14 into platinum cure (addition cure) silicone molds.

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Mold Max™ XLS™ II

Mold Max™ XLS™ II is a Shore 30A tin-catalyzed silicone mold rubber that exhibits very low long-term shrinkage. XLS™ II molds last longer than other silicones in production when casting chemically harsh resins such as epoxies and polyesters as well as urethane foams.

Mix ratio is 100A:10B by weight. Pot life is 40 minutes and cure time is 24 hours at room temperature. Mold Max™ XLS™ II silicone will reproduce the finest detail and is suitable for a variety of industrial and art related applications including making production molds for, reproducing prototypes, furniture, sculpture and architectural elements. Mold Max™ XLS™ II can be thickened with THI‑VEX™ additive for brush-on applications.

Vacuum degassing mixed material using a vacuum pump and chamber to remove entrapped air is recommended.

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Silicone Rubber - Tin Cure ›

Silicone Rubber - Platinum Cure ›

Urethane Rubber ›

Polysulfide Rubber ›

Urethane Resins ›

Epoxy Casting and Laminating Resins ›

Epoxy Putties ›

Epoxy and Urethane Coatings ›

Mix and Pour Expanding Foams ›

Adhesives ›

Lifecasting Materials ›

Skin Safe FX Materials ›

Polymer Modifiers for Concrete and Gypsum ›