Anti Tacks

Although the basic rubber compounding processing principles are common worldwide, the equipment used varies from plant to plant. There are also the great number of formulations with different degrees of tackiness to be considered. It is to accommodate these plant and product variations that makes a range of anti tack types necessary. It is not unusual for a factory to run different anti tacks for different lines. At Stephenson Speciality Chemicals we therefore view all applications as unique and look to customise our anti tacks to meet specific individual requirements via our experienced technical team.

The most common factors considered during the selction of an anti tack are:

• Effectiveness of release
• Compound compatibility
• Surface appearance
• Effect on machinery
• Sedimentation
• Economy
• Cleanliness
• Foaming

Powder Products

The Alkon 9000 series of powder anti tacks is designed to be easily dispersed in water by the customer prior to application. The products provide good, even coatings on rubber compounds with minimum foaming or sedimentation.
After Initial preparation the powder products work in a similar way to the ready-made dispersions although the sedimentation characteristics are generally better. Release properties are excellent and being highly active materials offer greater economy regarding transport and storage.

Dispersion Products

The Alkon 6000 series of ready-made dispersions offers a wide range of products with different filler systems to suit customer demands and compound compatibility.
The products offer excellent release on the treated compound once further diluted with water. Products are available which give low and high visibility coatings without compromising efficiency.
The dispersion range offers an alternative to those companies who do not want to prepare their own dispersions from the powders but it also offers more complex dispersions which are not available in powder form.

Liquid Products

The Alkon 7000 series of liquid products offers a clean and efficient range of products suited to most compounds. Manufactured from selected fatty acids, the products offer a good balance between release, wetting efficiency and film feel. Unlike the powders and dispersions, the liquid products leave the surface of the compound completely clear after application.
Latest products include water soluble film formers that are better able to cope with the cold flow and stretch at the polymer surface exhibited by softer compounds.