NuSil™ MED-4044

1 of 565 products in this brand
NuSil™ MED-4044 is a low viscosity silicone elastomer.

Product Type: Coating, Encapsulant, Potting Compound

Application Area: Medical Applications

Chemical Family: Silicones

Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Product Highlights
  • Two-part, translucent, pourable silicone elastomer
  • Offers high tear strength and excellent physical properties
  • Cures with heat via addition-cure chemistry
  • 10:1 Mix Ratio (Part A: Part B)

Applications & Uses

Application Area
Plastics & Elastomers End Uses
Applications
  • For use in potting, encapsulating, coating, and injection or transfer molding applications
Instructions for Use

Mixing

Combine Part A and Part B in a 10:1 mix ratio prior to use. Airless mixing, metering or dispensing equipment is recommended for production operations. If mixing by hand, take care to minimize air entrapment.

Vacuum Deaeration

Remove air entrapped during mixing by common vacuum deaeration procedure, observing all applicable safety precautions. Slowly apply full vacuum to a suitable container of at least four times the volume of material being de-aired. Hold vacuum until bulk deaeration is complete.

Cure Inhibition

Curing may be inhibited by traces of amines, sulfur, nitrogen oxide, organotin compounds, and carbon monoxide. Because organic rubbers often contain these substances, they should not come in contact with the uncured elastomer. Catalyst residues from silicone RTV elastomers and peroxide-cured silicone elastomers may also inhibit the cure.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Durometer Type A40.0
Viscosity73,400 (73,400 )cP (Mpa*s)
Work Time5.0hours
Tensile875 (6.03 )psi (MPa)
Elongat ion360.0%
Mix Rat io0.417361111
Specific Gravity1.09
Stress at Strain 200 %480 (3.31)psi (MPa)
Tear150 (26.46 )ppi (kN/m)
Cured Properties
ValueUnitsTest Method / Conditions
Cure at 177 °C5.0minutes
Cure SystemPlatinum
Post Cure at 150°C1.0minutes

Packaging & Availability

Regional Availability
  • Asia Pacific
  • Europe
  • Latin America
  • North America