OPTOLINQ PM-4911 | Two part silicone potting material

Harmonization Code : 3910.00.00.90 |   Silicones in Primary Forms; Others
Main features
  • Low stress silicone potting gel
  • Low viscosity, good leveling, and bubble-free curing
  • Excellent long term temperature resistance

Product Description

OPTOLINQ PM-4911 is a two-component, low-stress transparent packaging adhesive. When the two components are mixed in a 1:1 ratio (by volume), they cure into a soft silicone gel. This gel offers buffering, shock absorption, insulation, waterproofing, and moisture-proof functions for electronic components. With a very low modulus, it generates minimal internal stress and exhibits robust resistance to cold and heat shock. OPTOLINQ PM-4911 also exhibits excellent adhesion on various surfaces, making its suitable for insulating a wide array of electronic components. PM-4911 is an ideal potting material for IGBTs, displays, and precision components.

Product Family
PM-4911  
Drum
25 kg

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.
Packaging
TDS, SDS & Technical documents

Technical Specifications

General Properties
Mix Ratio
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
 1:1
Pot Life
Pot Life
Pot life is the amount of time it takes for the viscosity of a material to double (or quadruple for lower viscosity materials) in room temperature after a material is mixed.

It is closely related to work life but it is not application dependent, less precise and more of a general indication of how fast a system is going to cure.
 2 hours
Shelf Life
Shelf Life
Shelf life is the amount of time after manufacturing that a product is guaranteed to retain its properties.

It differs vastly per product and it is based on temperature and storage conditions.

The properties can be guaranteed for the temperature and time range indicated on the TDS since those are the ones tested to be the best for the product.
Shelf Life @ 25°C 365 days
Electrical Properties
Volume Resistivity
Volume Resistivity
Volume resistivity, also called volume resistance, bulk resistance or bulk resistivity is a thickness dependent measurement of the resistivity of a material perpendicular to the plane of the surface.
 1.0x1015 Ohms⋅cm

Additional Information

Premixed Properties

Property

Part A

Part B

Appearance

Transparent

Transparent

Density [g/cm3]

0.92–1.02

0.92–1.02

Viscosity [cP]

400–500

250–350

Precautions before Use

  1. Avoid contact with condensed silicone rubber, its gas, nitrogen, sulfur, phosphorus, and other chemicals, including heavy metals, as they may inhibit curing of the product.
  2. Maintain a clean and ventilated workplace, using extraction trunks when necessary.
  3. Wear appropriate protective equipment and minimize direct contact with the human body. Refer to the Material Safety Data Sheet (SDS) before use.

Storage and Handling

Store in a well-ventilated, dry area below 25 °C, away from fire and heat sources. Avoid outdoor storage. For extended shelf life, consider cold storage. Shelf life is 12 months under recommended conditions.