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Coatings Ingredients
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Coatings Ingredients
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ADDITOL® TPO

Technical Datasheet | Supplied by allnex
ADDITOL® TPO by allnex is a radical photoinitiator that can be used alone or in combination with other photoinitiators. It is used in formulations containing unsaturated materials such as acrylates, methacrylates, vinyls and unsaturated polyesters. With exposure to UV light, ADDITOL® TPO undergoes a photochemical reaction that generates radicals. These radicals will initiate polymerization through the unsaturated groups present in the system. Due to its photo-bleaching properties, is particularly suited for the UV curing of white pigmented formulations and thick clear coatings. It exhibits low odor and low volatility. This grade is characterized by low yellowing on UV cure and increased depth of cure. Applications include screen-, white flexographic- and offset inks. The recommended usage level is 0.5-2% by weight based on the reactive components of the formulation.
Product Type
Photoinitiators
Chemical Composition
2,4,6-trimethylbenzoyl diphenylphosphine oxide
CAS Number
75980-60-8
Physical Form
Powder
Appearance
Yellow
Product Status
COMMERCIAL
Geographical Availability
Africa, Asia / Pacific, Central and Eastern Europe, Middle East and Central Asia, North America, South and Central America, Western Europe
Applications/ Recommended for
  • Coatings > UV / Radiation Curing
  • Inks > UV / Radiation-curable
  • Resins > Polyesters > Unsaturated
  • Resins > Vinyls
  • Resins > Acrylics & Acrylic Copolymers
  • Inks > Flexographic inks
  • Inks > Lithographic and Offset Inks
  • Inks > Screen inks

ADDITOL® TPO Properties

Property

Value & Unit
Test Condition
Test Method
Melting Point
87 - 94 °C
Purity
> 98 %
Volatile Content
< 0.5 %

Compatiblity with other products

Find products that are predicted to be compatible with ADDITOL® TPO.

This list of compatible products is generated out of estimated HSP values. A practical determination of these HSP values would provide higher certainty.
Learn more about Hansen Solubility Parameters (HSP) and their use in predictive formulation.

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