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, the product has a shelf life of 60 months from the date of manufacture.

Keep away from freezing.

Turbidness or even crystallization can be caused by low temperatures. Warming and stirring brings the product back to normal appearance. This does not affect its performance properties.