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Product Table Head Definitions

Product #

Products are listed by product number in all search results and product display tables.

Clicking on a product number will download a PDF document of the product datasheet.

Type

Epoxy Technology, Inc. offers the following types or categories of products:

  • electrically conductive
  • thermally conductive
  • optical
  • UV
  • general

Number of Components

Most adhesives are packaged as one component or two components. Mixing is required to combine a two component material at the given mix ratio.

Conductivity

Conductance of a unit cube of any material.

Electrical: Conducts in range mili-ohms to mega-ohms
Thermal: Material designed to transfer or transmit heat.
Insulative: Insulating properties > 1 x 10e12 ohms

Cure Method

To change the physical properties of an epoxy by chemical reaction through polymerization, usually accomplished in the presence of heat and catalyst, alone or in combination.

Snap: Less than 5 minute cure with rapid heat source greater than 150°C.
Box Oven: Several hours duration inside box oven, usually between 50°C and 150°C.
Room: Capable of curing at room temp, usually near 23°C.
UV/Photo: Cured by Ultraviolet or Visible light.
Dual: Two step cure. Usually UV light first followed by a secondary oven cure.

Pot Life

The length of working time of a two component reactive system from the time of the addition of the curing agent in a specific mass (i.e. 100 grams). It is expressed in minutes.

Quick: 0-30 Min.
Short: 30 Min. - 2 Hrs.
Medium: 3 - 7 Hrs.
Long: 8 - 24 Hrs.
Days: Greater than 24 Hrs.

Pot Life Value

The length of working time of a two component reactive system from the time of the addition of the curing agent in a specific mass (i.e. 100 grams). It is expressed in minutes.

Viscosity

The property of resistance to flow exhibited within the body of a fluid. Usually measured in centipoise. 1 cps = Water. 400 cps = #10 Motor Oil. 1,000 cps = Castor Oil. 3,500 cps = Karo Syrup. 25,000 cps = Hersheys Chocolate Syrup.

Low: Flows easily. Pourable, like water or oil.
Medium: Has some flow. Consistency is between honey to molasses, toothpaste or ketchup.
High: Does not flow, paste-like. From molasses to peanutbutter like in consistency.

Viscosity Value

The property of resistance to flow exhibited within the body of a fluid. Usually measured in centipoise (cPs).

Tg

Glass Transition Temperature (Tg): Approximate midpoint of the temperature range over which a material undergoes a phase change from brittle to rubbery or vice versa.

Sub-ambient: -20°C to + 20°C
Low: 20°C to 60°C
Medium: 70°C to 100°C
High: 110°C to 180°C

Tg Value

Approximate midpoint of the temperature range over which a material undergoes a phase change from brittle to rubbery or vice versa. Measured in °C.

Thixotropic

The property of a paste or fluid to thicken or set up to a paste or semi-gel when allowed to stand. Agitation breaks it down but further standing will again permit a viscosity rise.

Yes: Material stays put when dispensed or applied. Does not flow.
No: Material flows/migrates when dispensed or applied.

Thixotropic Value

The property of a paste or fluid to thicken or set up to a paste or semi-gel when allowed to stand. Agitation breaks it down but further standing will again permit a viscosity rise.

Minimum Cure Temperature

The temperature at which the adhesive will cross link and obtain minimum cure properties.

Die Shear Strength

A push force necessary to break the bond between a common die of known dimensions and the specific substrate material. Usually measured in Kg.

Thermal Conductivity

The ability of a material to transfer heat. Usually measured in W/m°K.

CTE

Coefficient of Thermal Expansion: the ratio of change in dimensions of the cured adhesive to the original dimensions per degree rise in temperature. Aka expansion rate.

Index of Refraction

Nd. The amount of light scatter that takes place as light passing from one media to another.

Spectral Transmission

An indicator of an adhesive's transmission capability over a wide spectrum.

Hardness

The ability of an adhesive to resist an indentation force.

MSDS

Material safety datasheets (MSDS) are available for all products in our catalog.

Clicking on the product MSDS link will download a PDF document of the material safety datasheet.

 

 

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