Additive

TEGO® Dispers 688

TEGO® Dispers 688 is a polymeric wetting and dispersing additive for matte UV coatings. Stabilizes matting agents and gives low viscosities of the UV coatings, even at high matting agent levels. Improves processing during production and application of matte UV coatings. Helps to keep the matting effect on a stable level.
Bottle representation of TEGO® Dispers 688
PNG

Product information

Type

Additive

Sub type

Pigment wetting & dispersing

Sustainability

Production efficiency

Sustainable feedstocks

  • Bio-based content on delivery form: 6 wt%
  • Bio-based content on solids: 13 wt%
  • Biobased carbon on total organic carbon content (ASTM D6866): 7 %

Next generation solution

Markets

Technologies

High solids (solventborne)
Radiation curing systems
Solventborne

Manufacturer

TEGO Dispers Logo

Availability

Key benefits

  • provides long-lasting matting effect
  • enables high matting agent concentrations in UV coatings

Technical data

acid value (as supplied)
Approx 2 mg KOH/g
active matter content
approx. 45
amine value (as supplied)
Approx 10
appearance
clear to slightly hazy liquid (product properties are not affected by haziness)
chemical description
high molecular weight polymer
solvent
methoxypropylacetate

Properties

Viscosity reduction with organic pigments/carbon blacks
3/5
Color intensity/gloss with organic pigments/carbon blacks
2/5
Viscosity reduction with inorganic pigments/fillers
5/5
Color intensity/gloss with inorganic pigments/fillers
2/5

Recommended addition level

As supplied calculated on matting agent: 10 - 30 %.

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

At low temperatures, reversible turbidity can occur.

Keep away from freezing.

When stored in an original unopened packaging, the product has a shelf life of 36 months from the date of manufacture.