ADDITOL XW 6565 - allnex - Grinding Aid

Enhanced TDS

Labeling Claims: APEO-Free,
VOC-free
CASE Ingredients Features: Corrosion Resistance,
Good Color Stability,
High Gloss,
High Pigment Loading,
Improved Ageing Resistance,
Improved Chemical Resistance,
Improved Hardness,
Improved Mechanical Resistance,
Improved Rheology,
Improved Water Immersion,
Improved Water Spotting,
Low Pigment Floatation,
Low Reactivity,
Outdoor Durability,
Water Resistance
Distinguishing Features: Pigment concentrates based on Additol XW 6565 can be used in most solventbased and all waterbased architectural paints with very low contribution to VOC.

Markets: Automotive & Transportation,
Paints & Coatings
Applications: Paints & Coatings — Automotive & Transportation
Vehicle Refinish
Automotive & Transportation — Coatings & Finishes
Vehicle Refinish
Coating Type: Solventborne Coating,
Waterborne Coating
Special Properties and Uses: Additol XW 6565 is a unique multifunctional universal grinding medium, designed for performance optimized solventbased, waterbased and all low VOC decorative paints.

The special composition yields the following benefits:

- excellent color development,

- viscosity control and stabilization with all architectural pigments,

- optimized pigment paste formulations for POS tinting,

- glycol & Surfactant free pastes,

- enables formulation of near to zero VOC pigment pastes,

- improved humidity & water resistance performance,

- reduced paint blocking times,

- short grinding times,

- high pigment loading for in plant tinting.

Experimental design techniques have yielded a very versatile powerful universal grinding medium.
Recommended Additives: In some cases improved pigment paste properties can be achieved by using:

- Additol VXW 6205 as a dispersing agent for inorganic pigments to reduce mill base viscosity

- Additol XW 6544 as defoamer

For less critical paints Additol XW 6535 might be considered

Pigment Paste Production Guideline: Combine and premix the full quantity of Additol XW 6565, Acticide MBS and Additol XW 6544 on a dissolver for a few minutes. With agitation speed sufficient to maintain a good vortex, slowly add the pigment while controlling the viscosity by adding water as required. Pre-disperse for at least 15 min on a dissolver at a high viscosity level. Then adjust viscosity with water to meet the requirements of the bead mill. Grind to particle size below 5 µm. Check color strength and mill to stable maximum color strength. Temperature during grinding should be between 30 - 50 °C or the maximum temperatures of the pigments used.
General Information for not evaluated pigments: - To achieve maximum color strength in solvent borne systems keep the level of additional water as low as possible.

- The dosage of Additol XW 6565 on pigment should be a minimum of 60 % on inorganic pigments and 80 % on organic pigments.

- Grinding time depends on bead mill used and pigment chemistry.

- To adjust viscosity to special requirements it is recommended to uses PU-thickeners, fumed silica or clays in moderate dosages.

- Pigment pastes developed around Additol XW 6565 do not form crystalline flakes. If humectants are needed they should be evaluated carefully as some may be detrimental to color strength development.

- Adjustment of pH value is not recommended.

Country Availability

Brazil,

Regional Availability

Storage and Handling: At temperatures up to 25 °C storage stability packed in original containers amounts to at least 365 days. Synthetic resins containing water may freeze and/or separate at temperatures below 0 °C. However, this will not cause any damage to the product, but it will be necessary for extended heat treatment at 40 - 50 °C with continuous stirring for regeneration. It is therefore recommended to store in a "keep from freezing" environment.