PACKAGING WAXES
Flexible Packaging
Flexible packaging waxes are formulated to provide barrier coatings to converted paper-for-packaging applications. Cerax makes bespoke blends to create twist wrap functionality or heat sealable applications. Grades can be manufactured with food contact approved materials if necessary.
Choosing packaging wax for your process
Packaging wax selection begins with the converted material and the result required in service. Cerax supports flexible paper coatings, corrugated-board coatings and adhesive applications. The product families below provide different starting points for discussing barrier properties, flexibility, heat sealing and processing behaviour.
Packaging wax selection questions
Which application details should I provide?
Describe the paper or board, application method, production equipment and operating conditions. Explain whether the priority is a coating finish, moisture resistance, twist-wrap behaviour or an adhesive function. Include the present product specification and the issue you want to address.
For coated material, state the target coat weight and describe the converting steps that follow application. The way the packaging is folded, sealed or handled can be as important as the behaviour of the material during coating.
How do flexible and corrugated applications differ?
Flexible-paper applications may call for twist or flex performance, heat sealing or a particular finish. Corrugated-board applications may focus on barrier and strength-coating requirements. Compare the appropriate product section rather than assuming a coating intended for one substrate suits another.
Our industrial wax blends page provides related information on coating and adhesive families. Where the established range does not meet the brief, discuss custom formulation options.
What should be checked before a food-packaging application?
Tell Cerax the intended end use and the documentation required by your customer. Ask for the applicable information for the exact proposed grade and application. A general description on this page should not be treated as approval for every food-contact use.
Keep the relevant documents with the product specification and trial records. If the substrate, formulation or intended use changes, review the requirement again before routine production.
How should a candidate coating be evaluated?
Compare samples on the intended substrate using consistent preparation and application conditions. Assess processability, the finished coating and the relevant converting operations. Agree the acceptance criteria before the trial so each candidate is judged against the same brief.
Record the grade, application conditions and observations, then review them with the technical team. Ask for current technical and safety data before increasing trial size.
Some coating blends combine waxes with resins or polymers. The IUPAC polymer definition provides terminology background; grade-specific properties still need to be confirmed from the supplier’s documentation.
Contact Cerax to discuss packaging wax samples, product data, physical form and supply requirements.
Flexible packaging waxes are formulated to provide barrier coatings to converted paper-for-packaging applications. Cerax makes bespoke blends to create twist wrap functionality or heat sealable applications. Grades can be manufactured with food contact approved materials if necessary.
Low viscosity paper coating/impregnating wax that imparts high gloss, is quick melting, economical and suitable for a wide variety of application.
Specifications:
Congealing Point: 61-64 Degrees
Penetration at 25 degree: 15 – 20
Viscosity: 12-15mm 2S
Colour: Saybolt>27
A high performance blend of coating waxes for paper conversion that requires twist or flex.
Corrugated Board
Cerax provides a range of waxes used in the packaging industry as moisture barrier and strength coatings for print paper and corrugated cardboard packaging. Blends are tailored to suit different viscosities and application temperatures, to carefully control the weight per square meter applied.
Congealing Point: 76 +- 2 degree °C
Colour: Light Brown
A blend of paraffinic, microcrystalline, resin and polymers to create the optimum coating for corrugated cardboard used in the packaging industry.
Congealing Point: 76 +- 2 degree °C
Colour: Off-white
A blend of food contact approved waxes, resins and polymers used as a barrier coating in corrugated cardboard for food packaging.
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A blend of waxes, resins and polymers used in pre-coating fluting of corrugated cardboard, to improve water resistance and strength of cardboard packaging.
Adhesive Waxes
Wax is the most effective regulator of adhesive properties. The primary function of waxes in products like Hot Melt Adhesives (HMA) is to reduce the melting point and viscosity, improve the fluidity and wettability, increase bonding strength, reduce agglomeration and ultimately reduce the cost of the glue. Cerax produces a range of blends that are suitable for hot melt and ‘cool’ melt applications.
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A low melting temperature hot melt adhesive, used for heat sealable packaging and coating.