QM 140

$187.85
SKU
QUA QM 140

PRODUCT DESCRIPTION

QM 140 is a two-component, room temperature, condensation cure silicone material.  The cured rubber has excellent mechanical properties and good shelf-life stability.  This material is an excellent choice for the molding of intricate patterns, skin molding and applications where high durometer, dimensional stability and extremely tough rubber are required. KEY FEATURES High tear strength Low viscosity Fast demold time Excellent dimensional stability   The standard catalyst for QM 140 is QM Cat 140.  Additional catalysts include QM Cat 140 Clear, various thixotropic catalysts and QM Cat Clear FG* for indirect food contact applications.

Packing Weight Mix Ratio
Gallon Pail Kit 11 lbs 10:1
5 Gallon Pail Kit 44 lbs 10:1
55 Gallon Drum Kit 550 lbs 10:1

Technical data sheets, and MSDS are available in the Technical Library. *Complies with FDA indirect food contact regulation CFR177.2600 only when used with QM Cat Clear FG.  Refer to QM Cat Clear FG data sheet for typical properties. MAIN APPLICATIONS Molds for polyester, polyurethane and epoxy resin castings Molds for technical articles and prototypes Molds for furniture and picture frame replication

Uncatalyzed Properties
Base Appearance Beige
Base Viscosity, cps 50,000
CATALYST QM CAT 140
Color

Purple

Viscosity, cps

250

Specific Gravity, g/cm2

1.03

Catalyzed Properties

PROPERTY QM CAT 140
Catalyzed Color Light Purple
Catalyzed Viscosity, cps 37,000
Specific Gravity, g/cm2

1.13

Pot Life(2)(minutes)

~45

Tack-Free Time

4 to 6 hours

Demold Time

12 to 16 hours

TYPICAL CURED PROPERTIES (3 DAYS @ 25C)

Durometer, Shore A 38 to 42
Tensile Strength, psi >650
Elongation, %

~300

Tear B, ppi

>160

Linear Shrinkage, %

<0.3

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