Additive

TEGO® Dispers 685

TEGO® Dispers 685 is a high polymeric wetting and dispersing additive for radiation-curing and solventborne formulations. Stabilizes all kinds of pigments, especially organic pigments and carbon blacks. 100% active and liquid, therefore suitable for 100% solids and high solids formulations.

Bottle representation of TEGO® Dispers 685
PNG

Product information

Type

Additive

Sub type

Pigment wetting & dispersing

Sustainability

Production efficiency

Sustainable feedstocks

  • Bio-based content on delivery form: 15 wt%
  • Bio-based content on solids: 15 wt%
  • Biobased carbon on total organic carbon content (ASTM D6866): 18 %

VOC reduction

Next generation solution

Life Cycle Assessment available

Markets

Technologies

High solids (solventborne)
Radiation curing systems
Solventborne
Solventfree

Manufacturer

TEGO Dispers Logo

Availability

Key benefits

  • 100% active and liquid
  • oustanding performance even with critical organic pigments
  • recommended for UV printing inks

Technical data

acid value (as supplied)
Approx 35 mg KOH/g
active matter content
100
amine value (as supplied)
Approx 50
appearance
clear to hazy liquid
chemical description
high molecular weight polymer
viscosity at 25 °C
Approx 85,000 mPas

Properties

Viscosity reduction with organic pigments/carbon blacks
5/5
Color intensity/gloss with organic pigments/carbon blacks
5/5
Viscosity reduction with inorganic pigments/fillers
4/5
Color intensity/gloss with inorganic pigments/fillers
4/5

Recommended addition level

As supplied calculated on inorganic pigment: 2.0 - 15.0 %.

As supplied calculated on organic pigment: 5.0 - 15.0 %.

As supplied calculated on carbon black: 15.0 - 40.0 %.

Recommended addition level for co-grind: 0.1 - 3.0 %.

Processing instructions

Add to the grind before dispersion.

Addition under stirring to monomer/oligomer blend or solvent.

Handling & storage

When stored in an original unopened packaging between -40 and +40 °C, the product has a shelf life of at least 24 months from the date of manufacture. Solidification may occur at temperatures below 10 °C, product becomes liquid again after warming. Product properties are not affected by this process.