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ADDITOL® DMMTA

ADDITOL® DMMTA is a radical photo-initiator that can be used alone or in combination with other photo-initiators. It is used with unsaturated materials such as acrylates, methacrylates, vinyls and unsaturated polyesters. When exposed to UV light, a photochemical reaction occurs generating radicals which will initiate polymerization through the unsaturated groups present in the system.

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Technical data sheet (TDS)
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Properties

Features And Benefits
Ingredient Claims
VOC-free
Solvent-free
Low VOC
BPA-free
Features
Good Compatibility
Low Temperature Curing
Long Potlife
Low Flammability
Low Volatility
Good Solubility
Low Energy Consumption
Rapid Cycle Time
Good Surface Cure
Regional Availability
Asia Pacific
Product Characteristics
Color
White
Appearance
White crystalline
Physical Properties
Value
Unit
Test Method
Volatile Content
max. 0.5
%
Molecular Weight
279.4
Extinction Co-efficients
230nm: 28.921
Litres Gram-1 Cm-1
Typical Properties
Value
Unit
Test Method
Purity
min. 99
%
Melting Point
72 - 76
°C

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Technical product information

Performance Highlights

ADDITOL® DMMTA is characterized by:

  • Good solubility
  • Low volatility

UV curable formulated products containing ADDITOL® DMMTA are characterized by:

  • Good surface cure
  • Good through cure in pigmented systems

The final properties of UV cured products also depend on the selection of other components such as oligomers, reactive diluents and additives.

Suggested Applications

ADDITOL® DMMTA is typically used at levels of 2-4% by weight based on the reactive components of the formulation. The addition of 0.2-0.4% ADDITOL® ITX can significantly improve reactivity. Applications include:

  • Flexographic inks
  • Offset inks
  • Screen inks
  • Pigmented coatings
Storage and Handling

Store the material in a dry area out of direct sunlight. Prevent exposure to any UV or visible light. Keep containers closed and protect from physical damage.

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