Disperbyk® -108

Hdroxyfunctional carboxylic acid ester with pigment affinic groups. Acts as a wetting and dispersing additive for solvent-borne systems.

Details

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Chemical Composition

Hydroxyfunctional carboxylic acid ester with pigment affinic groups

Advantages
  • deflocculates pigments through steric stabilization of the pigments
  • provides equal electrical charge to pigments and thus avoids possible co-flocculation of pigments that are not equally charged
  • improved pigment wetting, gloss, color strength, and levelling
  • reduces viscosity
Other Applications

architectural coatings
industrial coatings
furniture coatings
pigment concentrates
gravure, flexographic, and silk screen printing inks

Handling

Recommended Levels in titanium dioxide : 0.8 - 1.5 %
Recommended Levels in organic pigments : 5 - 8 %
Recommended Levels in carbon blacks : 8 - 10 %

Technical data

Quantity Value Unit Comment
Physical Properties
Density 0.94 g/ml
Thermal Properties
flash point >100 ºC
Chemical Properties
Non-volatile materials >97 % wt
Amin number 71 mg KOH/g

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