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SYNTHOESTER 1690

CASE Ingredients Features
High Gloss
Chemical Family
Polyesters

SYNTHOESTER 1690 is a hydroxyl-group-containing polyester. This product can be combined with Desmodur N for high-quality two-pack paints and includes two-pack automotive refinishing paints. It has applications in industrial coatings and metal coatings.

Identification

CASE Ingredients Functions
Binder & Resin

Product families

Applications

Paints & Coatings — Industrial Coatings
  • Industrial Coatings
  • Metal Coatings

Product Families

CASE Ingredients — Resins & Binders
  • Polyesters

Other characteristics

Brand
SYNTHOESTER
End Uses
Varnishes
Features
High Gloss
Compatible Substrates & Surfaces
Metal
Carrier
Solvent-based
Markets
Paints & Coatings
Storage

SYNTHOESTER 1690 is stored in closed containers, protected from moisture, 6 month.

Shelf LIfe
6 months
Cure
Chemical Cure
Supplied As
60% in xylene
Technology
CASE Ingredients
Compatibility

Synthoester 1690 is compatible with the polisocyanates Desmodur N, L and IPDI-Trimer. In addition the polyester is compatible with pigment concentrations based on alkyd resin. Nevertheless compatibility should be tested in special cases.

Labeling Claims
  • APEO-Free
  • Formaldehyde-free
  • Plasticizer-free
Coating End Applications
Varnishes
Compatible Substrates and Surfaces
Metal
Mixing ratio with poly-isocyanates

Assuming equivalent reaction of the reactive groups (NCO : OH = 1:1), the following formula applies for calculation of the amount of polyisocyanate to be added (relative to 100 parts by weight of solid Synthoester 1690): Amount of polyisocyanate 42 X 100 x 1,8 to be added: 17 x NCO % 42 = molekular weight of the NCO group 17 = molecular weight of the OH group 1,8 = hydroxyl content of SYNTHOESTER 1690 in % relative to non-volatile components Best results are obtain with a mixing ratio of: 100 parts by weight SYNTHOESTER 1690 with 27 parts by weight Desmodur N

Technical data

Table 1 of 1

6 rows
CharacteristicValueUnitMethod
Viscosity2.000-3.000mPasAV-F-V005
Acid Valueapprox. 25mg KOH/g—
Colormax. 3Iodine—
Densityapprox. 1.13g/mlAV-F-0D001
Hydroxyl Contentapprox. 1.8%AV-F-H003
Hydroxyl Contentapprox. 60%AV-F-H003

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