OPTOLINQ LE-8011 | Two part epoxy resin

Harmonization Code : 3907.30.00.90 | Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms : Epoxide resins : Other

Main features

Excellent thermal stability
Excellent UV stability
High light transmittance

Product Description

OPTOLINQ LE-8011 is an epoxy resin specifically designed for infrared device packaging applications. This resin exhibits superior thermal stability and excellent UV stability, ensuring that devices can withstand high temperatures and ultraviolet light exposure without degradation.

Upon curing, OPTOLINQ LE-8011 forms robust cross-linked networks, providing strong adhesion and maintaining airtight seals. These properties make LE-8011 an ideal high-performance solution for infrared device packaging.

Key Features

Excellent thermal stability
Excellent UV stability
Excellent light transmission
Excellent adhesion
Good air tightness

Available versions

Visible Light Blocking (LE-8011)
UV-resistant Optically Clear (LE-8011U)

Product Family
LE-8011

1. Select Package Size

0.475 kg 0.5 kg

2. Available Package Type

Part A Part B

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.

Shortest leadtime

In stock

Contact for Pricing

Packaging

TDS, SDS & Technical documents

Specifications
Additional Information

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

100:95

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.

7 hours

Specific Gravity

Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume.

For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.

1.15

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

Physical Properties

Viscosity

Viscosity
Viscosity is a measurement of a fluid’s resistance to flow.

Viscosity is commonly measured in centiPoise (cP). One cP is defined as
the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP.

A product like honey would have a much higher viscosity -around 10,000 cPs-
compared to water. As a result, honey would flow much slower out of a tipped glass than
water would.

The viscosity of a material can be decreased with an increase in temperature in
order to better suit an application

400-800 mPa.s

Chemical Properties

Moisture absorption

0.74 %

Mechanical Properties

Hardness Hardness Hardness is a dimensionless quantity. There is no direct relationship between measurements in one scale and their equivalent in another scale or another hardness test.
Durometer (Shore D)	81-91

Thermal Properties

Coefficient of Thermal Expansion (CTE) Coefficient of Thermal Expansion (CTE) CTE (Coefficient of thermal expansion) is a material property that is indicative of the extent to which a material expands with a change in temperature. This can be a change in length, area or volume, depending on the material. Knowing the CTE of the layers is helpful in analyzing stresses that might occur when a system consists of an adhesive plus some other solid component.
Coefficient of Thermal Expansion (CTE), α1 Coefficient of Thermal Expansion (CTE), α1 CTE α1 (alpha 1) is the slope of the Coefficient of thermal expansion in a temperature range below the Glass transition temperature (Tg). It explains how much a material will expand until it reaches Tg.	65-75 ppm/°C
Coefficient of Thermal Expansion (CTE), α2 Coefficient of Thermal Expansion (CTE), α2 CTE α2 (alpha 2) is the slope of the Coefficient of thermal expansion in a temperature range above the Glass transition temperature (Tg). It explains the extent to which a material will expand after it passes Tg.	170-190 ppm/°C

Gel Time Gel Time Gel time is the time it takes for a material to reach such a high viscosity (gel like) that it is no longer workable. It is usually measured for different temperature conditions and even though it does not refer to full cure it is advisable to never move or manipulate the material after it reached its gel time since it can lose its desired end properties.
Gel time @ 150°C	205-275 Sec

Glass Transition Temperature (Tg)

Glass Transition Temperature (Tg)
The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding.

The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs.

163-173 °C

Additional Information

To meet higher application requirements, liquid encapsulation is expected to have (1) excellent thermal stability; (2) low transmittance decay. Our resin technology could help meet these challenges. With the resin improved in LE-8011, the pot life increased (~7 hours), and viscosity decreased (~400-800 cP). Meanwhile, LE-8011 is a Visible light-blocking encapsulation based on the optically clear version LE-8011U product platform, both products remain with superior anti-blue decay and thermal aging stability. Worth to be mentioned, the properties of both products remains within the same range, apart from their appearance in color and optical performance.

OPTOLINQ LE-8011 | Visible Light Blocking

LE-8011 is developed based on LE-8011U, thus LE-8011 keeps UV-blocking properties as LE-8011U.

OPTOLINQ LE-8011U | Optically Clear-UV Light Blocking

Optically clear encapsulation with stable UV blocking capabilities.

OPTOLINQLE-8011UOpticallyclearUVblocking

LE-8011U | UV Aging Performance

LE-8011 has superior anti-blue decay properties as LE-8011U.

LE-8011U | Thermal Aging Performance

Optically clear encapsulation with stable UV blocking capabilities.

Processing Instructions

Mix components A and B in a 100:95 weight ratio and stir uniformly. Ensure that the mixture is uniform and free from streaks or unevenness.
Defoam the mixture under vacuum conditions for 5 minutes.
Recommended curing condition: First cure at 130 °C for 1 hour, then post cure at 150 °C for 4 hours.

Curing conditions should be determined according to the specific needs of the package being encapsulated, the conditions mentioned are for reference only.

Storage and Handling

The uncured resin can be cleaned with acetone or a suitable cleaning agent. Water cannot be used as cleaning agent.

Store in a cold, dry, and clean environment between 10–30 °C with relative humidity below 70%. Keep away from exposure to direct sunlight. It is strictly forbidden to store in outdoor environments. At proper storage conditions, unopened Part A and Part B have a shelf life of 12 months.