TPGDA20-3N (Epoxy Acrylate for UV Coating Systems)

TPGDA20-3N (Epoxy Acrylate for UV Coating Systems)

General:
TPGDA20-3N is a standard bisphenol A epoxy diacrylate oligomer with 20% TPGDA as diluent. This resin is characterized by fast cure, light color, chemical and heat resistance with high gloss and hardness. It belongs to the most common typical UV oligomer used in various UV/EB applications such as inks, coatings and overprinting varnishes.

Properties:
Active ingredient : 80% Epoxy acrylate oligomer , 20% TPGDA
CAS No. : 55818-57-0 , 42978-66-5

Performance Highlights:
TPGDA20-3N is characterized by :
● Light color
● Fast curing speed
● Excellent chemical heat resistance

UV/EB cured products containing TPGDA20-3N are characterized by the following performance properties :
● High gloss
● High surface hardness
● Excellent chemical resistance

The final properties of UV/EB cured products also depend on the selection of the other formulation components such as reactive diluents, additives and photo initiators.

Suggested Application:
Formulated UV/EB curable products containing TPGDA20-3N may be applied via lithographic, screen, gravure, direct or reverse roll and curtain coating methods.

TPGDA20-3N is recommended for use in :
● Clear coatings for paper, paper board, wood, chipboard and rigid plastics
● Overprint varnishes
● Lithographic and screen ink
● Wood sealers
● Paper upgrading
● Laminating adhesives
● Fast cure coatings



Specification:
Appearance : Clear, pale yellow viscous liquid
Viscosity at 25°C, cps : 25,000-35,000
Color, Gardner : 1 max.
Acid value, mg KOH/g : 1 max.

Physical Properties:
% epoxide : 0.27
Density, g/cm3 : 1.16
Functionality, theoretical : 2
Polymer solids, % by weight : 80
Molecular weight, theoretical : 600

Cure Properties:
Tensile strength, psi : 15,000
Tensile elongation, % : 7
Glass transition temperature, °C : 68

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