NuSil™ MED-2000

1 of 565 products in this brand
NuSil™ NuSil™ MED-2000 is a RTV silicone adhesive.

Product Type: Adhesive

Application Area: Medical Applications

Compatible Substrates & Surfaces: Metal, Polyurethane

Chemical Family: Silicones

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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Product Type

Features & Benefits

Labeling Claims
Ready-to-Use Product Features
Product Highlights
  • One-part, solvent-free silicone
  • Cures at room temperature upon exposure to atmospheric moisture

Applications & Uses

Application Area
Compatible Substrates & Surfaces
Plastics & Elastomers End Uses
Applications
  • Well suited for use as an adhesive for bonding and sealing silicone materials
  • For applications requiring the bonding of silicone to metals, urethanes and various other substrates
Instructions for Use

Apply MED-2000, supplied in cartridges, with the use of appropriate dispensing equipment. Do not store alcohol near the worksite as traces of alcohol inhibit the catalytic system of the adhesive.

Surface Preparation

Thoroughly clean surfaces being bonded or built-up with silicone adhesive using a non-oily cleaner or mild soap to remove any surface contaminants. Do not use synthetic detergents or oil-based soaps, as they may be absorbed and subsequently leach out. Rinse first with hot water, followed by a thorough rinse using distilled water. Use compatible degreasers to clean metal surfaces.

Bonding Applications

Spread a layer of silicone adhesive on one of the surfaces. Squeeze both surfaces together to bond. Apply sufficient pressure to ensure full contact without forcing the silicone adhesive from between the pieces.

Curing Time

Curing or vulcanization time depends upon the thickness of the silicone adhesive layer, relative humidity, and accessibility of atmospheric moisture to the curing adhesive. For sections of typical thickness, a relative humidity level between 20-60% is recommended to cure the adhesive at room temperature.

Generally the adhesive forms a thick, tack-free outer skin for thick section films within a few minutes after application. The vulcanization rate slows when exposing very thin films to excessive humidity (80% relative air humidity). For films below 80 microns, the relative air humidity should be within 30% - 50%.

Because MED-2000 cures upon exposure to atmospheric moisture, keep tubes tightly closed when not in use. A plug of cured material may form in the tip of the tube. Remove or dispense the plug from the tube before using.

Non-Sterile Packaged Units

The acidic nature of MED-2000 provides a natural bactericidal effect. While containers may be relatively free of microorganisms, they can not be considered sterile unless subjected to a validated sterilization process. When the adhesive is fully cured it can withstand sterilization with ethylene oxide, dry heat, or steam autoclaving. The size and shape of fabricated articles must be considered when establishing the conditions of sterilization. Larger quantities and larger parts may require longer periods of heating and may retain ethylene oxide longer than small parts. It is the user’s responsibility to determine the out-gassing time required for a particular application if ethylene oxide sterilization methods are used.

Caution

Do not use MED-2000 in its uncured state to repair or encapsulate living tissue in the body. During curing, approximately 4-5% acetic acid (vinegar-like odor) is generated in vapor form. Avoid contact with eyes and skin, as uncured adhesive irritates. Take appropriate precautions if wearing contact lenses. In case of contact, flush eyes with water, use a dry towel to remove from skin and contact a physician. Keep out of REACh of children.

Properties

Appearance
Translucent
Typical Properties
ValueUnitsTest Method / Conditions
Mix Rat io1 PART
RheologyFlowable / Self Leveling
Durometer Type A25.0
Elongat ion800.0%
Extrusion Rat e2.5g/minute
Specific Gravity1.08
Stress at Strain 200 %105 (0.72)psi (MPa)
Tack Free Time13.0minutes
Tear80 (14.11 )ppi (kN/m)
Tensile1,375 (9.48 )psi (MPa)
Cured Properties
ValueUnitsTest Method / Conditions
Cure TypeRTV
Cure at RTV72.0hours
Cure SystemAcetoxy

Packaging & Availability

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