A6225| Anti bleed Additive

Harmonization Code : 3910.00.00.90 |   Silicones in Primary Forms; Others
Main features
  • Universal additive
  • Reduces bleed out on metal surfaces
  • Non halogenated

Product Description

A-6225 is a proprietary, patent-pending non-halogenated additive utilizing a monofunctional silicone together with a thiol reactive group allowing it to perform multiple functional roles. When used in metal filled and non-metal filled adhesive systems it reduces resin bleed out on a variety of surfaces such as with copper and gold traces. When used as a mold release in composite manufacturing the material imparts a residual anti-stiction silicone coating to surface of the parts.

A-6225 is co-curable in both free-radical based and traditional epoxy based polymerization systems. It can also enhance the rheological properties of various filled adhesives.

A-6225 is recommended for use as an additive to reduce resin bleed out specifically on metal surfaces. The recommended addition of the A-6225 to a formulation is between 2% - 5% weight percent of resin. It shows superior bleed control in silver filled formulations and can significantly reduce or eliminate resin bleed out in formulations that contain non-metal fillers such as silica. A-6225 may be applied up to full strength to molds or incorporated at 2 – 4% weight percent in resin formulations to provide mold release and surface anti-stiction properties.

Product Family
A6225  
50gr Jar

Catalog Product

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Packaging
TDS, SDS & Technical documents

Technical Specifications

General Properties
Appearance
Appearance
Appearance at room temperature.
 Colorless liquid
Density (g) 0.98 g/cm3
Functionality 1 Functional group/molecule
Molecular weight 1089 (estimated) g/mol
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
 50 mPa.s
Thermal Properties
Flash Point
Flash Point
The flashpoint of a solvent is the lowest possible temperature at which it can vaporize to form an ignitable vapor.

Flashpoint is often confused with “autoignition temperature”, which is the temperature at which a solvent ignites without an ignition source.
 153 °C

Additional Information

Epoxy Resin Incompatibility

A6225 rely on thiol functionality to bond in and prevent bleeding. Unfortunately thiol group react with epoxy resin instead of substrate reducing or even eliminating the resin bleed functionality.

 

Molecular Weight Estimation

We do not specifically measure the M.W. for this material and instead rely on the average M.W. of the starting material and the functionality (thiol group) that makes the product.