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LOCTITE STYCAST OA4000

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
  • LED Encapsulation
  • Moisture resistant
  • Excellent thermal shock properties

Product Description

LOCTITE® STYCAST OA 4000 is Part A of LOCTITE® STYCAST OS4000, a fast curing, water-white epoxy casting compound designed for the encapsulation of LED lamps and displays. The mixed compound will gel rapidly at temperatures above 120°C; following a short post cure of 2 hours @ 125°C it will develop high strength, moisture resistant castings with excellent thermal shock properties.

LOCTITE® STYCAST OS4000 can be colored and diffused by the addition of specific dye concentrates, AC7113 red, AC7044 green and AC7088 diffusant concentrate

Mix Ratio, parts by weight* 100/100

Product Family
OA4000  
Pail
4 kg

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.
Not Available Shipping in 8 - 12 weeks

Technical Specifications

General Properties
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
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 if 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.
4 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 @ 15°C 12 months
Mechanical Properties
Flexural Strength
Flexural Strength @ 25°C
Flexural Strength @ 25°C
Flexural strength, also known as modulus of rupture, or bend strength, or transverse rupture strength is a material property, defined as the stress in a material just before it yields in a flexure test. This is the flexural strength tested at Room Temperature, 25°C
206 N/mm2
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
Viscosity 7,000 mPa.s
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) 90
Electrical Properties
Dielectric Constant
Dielectric Constant
Dielectric Constant (k), commonly known as relative permittivity, is a number relating the ability of a material to carry alternating current to the ability of vacuum to carry alternating current.

It determines the ability of an insulator to store electrical energy and is the ratio of electric permeability in vacuum against the electric permeability of a material.

The lower the dielectric constant (κ) and dissipation factor, the less energy is absorbed from an electric field, making it a much better insulator.

It is a dimensionless property that can be affected by various factors such as the
thickness uniformity of a material, insufficient contact between the sample and electrodes, water adsorption and contact resistance.
Dielectric Constant @ 25 ˚C/100 kHz 2.89
Thermal Properties
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.
110 °C
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 ppm/°C

Additional Information

Pricing & Availability

Pricing for LOCTITE STYCAST OA4000

Volume Price Breaks can be seen for each product by clicking on its respective link under the DESCRIPTION column and looking to the volume price break table to the right of the product image. Price per unit is reflected in this table and used during checkout.

CAPLINQ lists all its prices without taxes, shipping payment charges or discounts. CAPLINQ has entities in Canada and the Netherlands, and if your shipping address is one of these two countries, applicable taxes will be applied.

If your shipping address is to the United States, we request your company?s Employer Identification Number (EIN) or Tax Identification Number (TIN). This is a unique 9-digit number assigned by the IRS and is required for all cross-border shipments. Failure to provide this number could result in delays to your order.

If your shipping address is within the EU, but outside the Netherlands, then we are required to request your company's Value Added Tax (VAT, BTW, MwSt) number to be able to ship the goods tax-free. For all other countries, no taxes are levied on your orders.

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Shipping Charges for LOCTITE STYCAST OA4000

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Availability for LOCTITE STYCAST OA4000

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