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Coating Additives

Powder Coating Additives

Additives & Hardeners for Powder Coatings

allnex, as the market leader in the powder coatings world, offers a range of additives and special products together with the broad portfolio of resins for powder coating. Those products help our customers to solve coating problems and to reach unique finishing effects.

Please click the info box to read a general article (Published in PCI Mag, Sept 2020) explaining the background and benefits of major important additives for powder coatings.

Additives for Powder Coatings
Additives & Hardeners for Powder Coatings

Isocyanate PU (Polyurethane) Hardener

Amongst the family of hardeners that allnex provides, the isocyanate hardeners have proven and demonstrated weathering resistance, such as the ADDITOL® P 932.

  • SUPERIOR WEATHERING RESISTANCE
  • ALIPHATIC URETHANE PRE-POLYMER CROSSLINKING AGENT

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ADDITOL® P 932

Isocyanate PU (Polyurethane) Hardener

Silica-Dispersed Flow Promoters

allnex MODAFLOW  flow aids have been created to assist the coating manufacturer in offering the best- looking coatings, including preventing craters, fish-eyes and orange peel texture. Both silica dispersed, silicone-free flow promoter- MODAFLOW® Powder III and MODAFLOW® Powder 6000 are supplied with 65% active compound content. MODAFLOW® Powder III improves substrate wetting and initial adhesion, whereas MODAFLOW® Powder 6000 greatly improves cross-compatibility of powders and their DOI.

  • Excellent flow out and leveling
  • Crater and fish-eye prevention
  • Reduced orange peel texture
Silica-Dispersed Flow Promoters

Masterbatch Flow Promoters

allnex offers polyester carrier flow promoter Masterbatches such as ADDITOL® P 896 and ADDITOL® P 824 based on low viscous hydroxyl functional carrier resins that improve flow out and provide excellent compatibility towards many binder systems.  ADDITOL® P 896 finds universal application in all kind of powder coatings whereas ADDITOL® P 824 was preferably designed for HAA coatings. This group of flow promoters are the best choice for all pigmented powder coatings for in- and outdoor applications, are easy to handle and improve the dispersion of the additive into the bulk of the powder.

  • Excellent flow out and leveling
  • Universal application in all pigmented powder coatings
  • Easy handling and excellent dispersion of the additive
Masterbatch Flow Promoters

Masterbatch Flow Promoters for Clear coats

Flow promoter Masterbatches for clear coats require best in class compatibility to all ingredients involved to obtain superior clarity and transparency of final clear coats. ADDITOL®P 891- based on a carboxyl functional polyester resin carrier-  represent two options for formulators to reach optimum results.

  • Excellent flow out and leveling
  • Outstanding transparency in clears
  • No Haze

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ADDITOL® P 891

Masterbatch Flow Promoters for Clear coats

Catalyst Masterbatches

Our Masterbatch Catalyst products have been created by allnex specialists to help properly formulate powder coatings to achieve required reactivity, to enlarge the curing window and to adjust the gloss level in matte dry blend systems.  The range includes ADDITOL®P 964 and ADDITOL®P 963, two catalyst Masterbatches for hybrid, TGIC and glycidyl esters, based on two different active ingredients. ADDITOL®P 966 based on a superdurable carrier resin provides excellent results in superdurable powder coatings using TGIC or glycidyl esters as curing agent. 

  • Applicable for all powders based on carboxy-epoxy chemistry
  • Expanding the cure window of powders
  • Gloss adjustment in Matte Dry Blend Systems
Catalyst Masterbatches

Tribo Masterbatches

The Tribo  Masterbatch ADDITOL®P 950 completes the range of powder coatings additives. This additive is suitable for hybrid, TGIC, polyurethane and glycidyl ester powder coatings, enhances Tribo chargeability allowing for superior coating penetration on complex shapes for indoor or outdoor items.  ADDITOL®P 950 is easy to handle and greatly improves the dispersion of the active ingredient.

  • Enhances Tribo chargeability
  • Improves transfer efficiency
  • Suitable for almost all powders for in- and outdoor applications

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ADDITOL® P 950

Tribo Masterbatches

Poly-anhydride Hardener

The allnex line of poly-anhydride hardeners has been created with the consumer in mind for a diverse range of applications, including offering a superior alternative system for clear automotive and for metal packaging, for example. The line includes the ADDITOL® P 791 which has outstanding flow and the BECKOPOX™ EH 694 which has extremely good thermal stability.

  • OUTSTANDING THERMAL STABILITY
  • EXCELLENT FLOW IN CLEAR FORMULATION
  • SUITABLE FOR AUTOMOTIVE & METAL PACKAGING
Poly-anhydride Hardener

Masterbatch Catalyst and special CRYLCOAT® polyester for Wrinkle Effect Coating

The Catalyst Masterbatch ADDITOL®P 920 - supplied with 5% of active compound and based on a hydroxyl functional polyester matrix - is widely used in combination with the special hydroxyl functional polyester resin CRYLCOAT® 2920-0 for the formulation of effect coatings. Both products allow in  conjunction with a Glycoluril crosslinker to produce consistent wrinkle effect coatings with excellent mechanical properties and outdoor resistance in all kind of colors.

  • Various Wrinkle Effect Coatings
  • Good mechanical properties
  • Excellent outdoor resistance
Masterbatch Catalyst and special CRYLCOAT® polyester for Wrinkle Effect Coating

Glycidyl-functional Acrylic Matting Agents

The unique resin design of SYNTHACRYL® 700 provides in combination with CRYLCOAT® 2441-2 dead matte coatings with outstanding smoothness and outdoor resistance in clears and pigmented powders. Combinations of SYNTHACRYL®710 with CRYLCOAT® 2630-2 or CRYLCOAT® 2441-2 plus small amounts (<2%) of correspondent crosslinker HAA and TGIC respectively; produce matte coatings in gloss range <10 GU at 60° with much improved flexibility and standard durability at outdoor exposure.

  • Dead Matte Coatings
  • Outstanding Film Smoothness
  • Excellent Outdoor Durability
Glycidyl-functional Acrylic Matting Agents