LOCTITE ABLESTIK ABP 8035M

Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

Main features

Clear Silicone
High modulus at high temp
For High brightness LED

Product Description

LOCTITE® ABLESTIK ABP 8035M is a non-conductive clear silicone designed for high brightness LED die attach applications. This silicone based product has unique properties including excellent worklife stability which ensure it can be used continuous for 24 hours pin-transfer test.

LOCTITE® ABLESTIK ABP 8035M offers low outgas ratio during cure and high adhesion strength, good thermal stability, high transparent ratio and high storage modulus properties after cure which are important for LED applications.

Cure Schedule

30 minutes ramp to 175ºC; hold 60 minutes
1 hour @ 175°C

Specifications

Technical Specifications

General Properties

Work life @25°C

Work life @25°C
Work life is the amount of time we have to work with a material until it is no longer able to be easily worked and applied on a substrate.

It is based on the change in viscosity and it can rely on the application requirements.

24 hours

Physical Properties

Thixotropic index

Thixotropic index
Thixotropic Index is a ratio of a material s viscosity at two different speeds in Ambient temperature, generally different by a factor of ten.

A thixotropic material s viscosity will decrease as agitation or pressure is increased. It indicates the capability of a material to hold its shape. Mayonnaise is a great example of this. It holds its shape very well, but when a shear stress is applied, the material easily spreads.

It helps in choosing a material in accordance to the application, dispense method and viscosity of a material.

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

2,500 mPa.s

Mechanical Properties

Tensile Modulus Tensile Modulus Tensile modulus is a mechanical property that measures the stiffness of an elastic material. It is the slope of stress / strain curve of a material under direct tensile loading. It can be used to predict the elongation or elastic deformation of an object as long as the stress is less than the tensile strength of the material. Elastic deformation is caused by stretching the bonds between atoms and the deformation can be reversed when the load is removed. Tensile modulus is affected by temperature and is an important engineering attribute since we generally want to keep elastic deformation as small as possible.
Tensile Modulus @-65°C	620 N/mm2
Tensile Modulus @150°C	110 N/mm2
Tensile Modulus @25°C	240 N/mm2
Tensile Modulus @250°C	100 N/mm2