UPGRADE FOR WAX COATINGS

Wax Coating for Coated Paper and Laminates

KEYWAX Rubber/Wax Concentrates are
most often used as wax additives for paper
converting. This improves the quality of the wax
coatings for coated paper, cellophanes, and paper laminates.

By introducing small quantities of butyl rubber between the wax crystals, KEYWAX Rubber/Wax Concentrates effectively solve the typical deficiencies of unmodified wax blends. This makes KEYWAX Rubber/Wax Concentrates the most efficient and effective way to overcome the typical deficiencies of unmodified wax blends:

• Wax coating improves the barrier properties of the substrate by reducing its permeability to air and moisture and increasing its resistance to normal wear and tear.
• Coated papers, foil/paper laminates or cellophanes are mainly used as protective wrappers for cheese, dry foods, ice cream novelties and similar products from which air and moisture must be excluded to prevent spoilage.
• In laminates, the wax acts as an adhesive which bonds the layers of paper, foil or board together. Its barrier properties are beneficial for containers whose contents must be kept dry.

KEYWAX Rubber/Wax Blends for Wax Coatings are:

• FLEXIBLE and CREASE RESISTANT...even at low temperatures
• IMPERMEABLE...moisture cannot penetrate between the wax crystals
• HEAT RESISTANT...KEYWAX resists melt and flow at high temperatures
• SCUFF RESISTANT
• HIGHLY VISCOUS to CONTROL WICKING...this keeps the substrate from absorbing too much of the coating, adding to cost and increasing brittleness

Key Polymer does the Hard Work:

Typical attempts by wax processors to blend rubber into wax have required significant process time and/or excessive physical energy resulting in a dark colored non-uniform mixture.

 KEYWAX RUBBER/WAX CONCENTRATES are easy to blend into molten wax with low horsepower mixers. There is no easier or more effective way for converters to add rubber and its desirable properties to their wax coatings.

 KEY POLYMER does the hard part - incorporation of tough durable butyl and polyisobutylene rubber into a wax base in a carefully controlled high horsepower blending process so that end users can cut back the concentrate with their wax using simple propeller mixers.

Wax Coating Applications

COATED PAPER:

• Typically the addition of 2-15% KEYWAX RUBBER WAX CONCENTRATE to coating waxes prevents strikethrough and enhances flexibility (especially at low temperatures).
• Resistance to vapor transmission, crease resistance, and heat sealing properties are also improved.

PAPER and PAPER/FOIL LAMINATES:

• Microcrystalline waxes are most often used for laminating. Paraffin waxes are lower cost, but less flexible and have lower bond strength. In many cases, however, the use of KEYWAX RUBBER WAX CONCENTRATE upgrades paraffin to overcome this deficiency.
• The addition of 1-5% KEYWAX RUBBER WAX CONCENTRATE will increase viscosity and reduce delamination at elevated temperatures.
• The KEYWAX RUBBER WAX CONCENTRATE prevents strike-through and improves the heat-sealing characteristics of the treated paper by reducing the tendency of the wax to flow away from the area to which heat is applied.

FDA STATUS:
This product meets the FDA requirements set forth in 21CFR 176.170 and 176.180 for use in contact with food. Click here for complete information on FDA compliance.

 

 

Contact Key Polymer

For more information about KEYWAX Rubber/Wax Concentrates for wax coatings, please:

• Contact us via our Customer Service Form
• Or call us today at 1-888-KEYPOLY

Free samples are readily available.