Additive

TEGO® Dispers 689

TEGO® Dispers 689 promotes the incorporation of matting agents in radiation-curing formulations. It enables strong matting effect and is solvent-free.

Bottle representation of TEGO® Dispers 689
PNG

Product information

Type

Additive

Sub type

Pigment wetting & dispersing

Sustainability

Sustainable feedstocks

  • Bio-based content on delivery form: 23 wt%
  • Bio-based content on solids: 23 wt%
  • Biobased carbon on total organic carbon content (ASTM D6866): 26 %

Next generation solution

Life Cycle Assessment available

Markets

Technologies

High solids (solventborne)
Radiation curing systems
Solventborne
Solventfree

Manufacturer

TEGO Dispers Logo

Availability

Key benefits

  • provides long-lasting matting effect
  • enables high matting agent concentrations in UV coatings
  • gives highest viscosity reduction in low-VOC colorants
  • broad compatibility

Technical data

acid value (as supplied)
Approx 10 mg KOH/g
active matter content
100
amine value (as supplied)
Approx 110
appearance
clear to slightly hazy liquid
chemical description
high molecular weight polymer
solvent
-

Properties

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

Recommended addition level

As supplied calculated on matting agent: 2.5 - 7.5 %.

As supplied calculated on inorganic pigment: 1.0 - 15.0 %.

As supplied calculated on organic pigment: 3.0 - 25.0 %.

As supplied calculated on carbon black: 5.0 - 40.0 %.

Processing instructions

Please mix the additive with monomer/oligomer blend prior to addition of solid particles.

Add to the grind before dispersion.

Haziness caused by low temperatures can be eliminated by warming the product. This does not affect the performance properties of the product.

Handling & storage

When stored in an original unopened packaging, the product has a shelf life of 60 months from the date of manufacture.

At low temperatures, reversible turbidity can occur.