Explore our photoinitiators for UV curing
Explore our photoinitiators for UV curing
Photoinitiators are chemical compounds that, when exposed to UV light, convert the energy to initiate the curing of the formula. Photinitiators are indispensable components of UV-curable adhesives, inks, and coatings.
RAHN offers a wide variety of high-quality photoinitiators under the GENOCURE* trademark. Explore the below product portfolio to get acquainted with the applications and characteristics of each product and to be able to choose the appropriate solution for your formulations.
Incorporating composite raw materials with RAHN's GENOCURE* photoinitiators can significantly enhance the mechanical properties and durability of UV-curable systems, making them ideal for advanced applications in aerospace, automotive, and electronics industries where performance and reliability are paramount.
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GENOCURE* BAPO
Phenylbis (2,4,6-trimethylbenzoyl) phosphine oxice, especially suited for white pigmented formulations, allows very thick films to be cured, low volatility
Applications
- 3D Printing
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* BDK
Benzildimethylketal, general purpose where non-yellowing is not essential
Applications
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* BDMM
2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)- butanone-1, excellent through cure in dark color pigmented systems, combinations with other photoinitiators
Applications
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
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GENOCURE* BMS
4-Benzoyl- 4'methyldiphenylsulphide, high reactivity, good solubility, LED curing 365nm, for pigmented systems in combination with amine synergists
Applications
- 3D Printing
- Adhesives
- Coatings on Plastics
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* BP
Benzophenone, general purpose, low cost
Applications
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* CPK
1-Hydroxycyclohexylphenylketone, low yellowing
Applications
- 3D Printing
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* CQ
provides good through cure in long wavelength (visible) light, soluble in alcohol, ketones, acrylates and methacrylates
Applications
- 3D Printing
- Adhesives
- Electronics
- Medical
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GENOCURE* DEAP
P 2,2 Diethoxyacetophenone, reactivity increases if used in combination with benzophenone and an amine synergist
Applications
- 3D Printing
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* DETX
2,4 Diethylthioxanthone, pigmented systems in combination with amines and e.g. GENOCURE BDMM
Applications
- 3D Printing
- Digital Inks
- Flexo Inks
- Offset Inks
- Screen Inks
- Wood Coatings
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GENOCURE* DMHA
Dimethylhydroxyacetophenone, low yellowing, liquid
Applications
- Adhesives
- Coatings on Plastics
- Digital Inks
- Electronics
- Flexo Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* EMK
4,4-Bis (diethylamino) benzophenone, excellent efficiency in pigmented systems, usable in UV/LED inks
Applications
- 3D Printing
- Coatings on Plastics
- Digital Inks
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* ITX
Isopropylthioxanthone, pigmented systems in combination with amines and e.g. GENOCURE BDMM
Applications
- 3D Printing
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Screen Inks
- Wood Coatings
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GENOCURE* LBC
1-Hydroxycyclohexylphenylketone and Benzophenone, liquid with good balance of surface and through cure for clear coatings
Applications
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* LBP
4-Methylbenzophenone and Benzophenone, general purpose, liquid
Applications
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* LRT
liquid Type I photoinitiator blend for UV/LED-curable inks, coatings and adhesives. For clear and e.g. white pigmented systems, easy to add, can replace TPO, low yellowing, good surface and through cure, good for high film thickness, low oder
Applications
- 3D Printing
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* LTD
2,4,6 Trimethylbenzoyldiphenylphosphine oxide Dimethylhydroxyacetophenone, liquid photoinitiator for non-yellowing clear and white pigmented systems
Applications
- 3D Printing
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* LTM
Liquid Photoinitiatorblend, white and thick coatings, liquid with good balance of surface and through cure, non-yellowing
Applications
- 3D Printing
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* MBB
Methyl-o-benzoyl-benzoate, good surface cure
Applications
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* MBF
clear coatings, excellent surface curing photoinitiator especially in amine-free systems, low odor
Applications
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* PBZ
4-Phenylbenzophenone, high reactivity, low migration and odor
Applications
- Adhesives
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* PMP
2-Methyl-1-(4-methylthiophenyl)-2- morpholinpropan-1-one, pigmented systems in combination with other photoinitiators
Applications
- Adhesives
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
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GENOCURE* TPO
white and thick coatings, non-yellowing
Applications
- 3D Printing
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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GENOCURE* TPO-L
Ethyl(2,4,6-trimethylbenzoyl) phenylphosphinate, liquid, white and thick coatings, non-yellowing
Applications
- 3D Printing
- Adhesives
- Coatings on Plastics
- Composites
- Digital Inks
- Electronics
- Flexo Inks
- Offset Inks
- Overprint Varnishes
- Screen Inks
- Wood Coatings
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FAQ on Photoinitiators
What are the types of photoinitiators?
They can be classified into two main types: Free Radical Photoinitiators: These generate free radicals, which initiate polymerization in formulations like styrene or acrylate. They are divided into Type I (unimolecular bond cleavage) and Type II (bimolecular reaction). Cationic Photoinitiators: These are used in formulations with epoxy or certain resins. When exposed to UV light, they form acids that start the polymerization process. Cationic photoinitiators are known for their efficient curing, strong adhesion, and resistance to chemicals. They are ideal for coatings in various industries like printing and packaging.
What is the most common photoinitiator?
The most common photoinitiators are benzoin methyl ether and camphorquinone. These are widely used in UV-curing applications due to their efficiency and reliability in initiating the curing process.
Are photoinitiators toxic?
Photoinitiators are generally safe when used correctly in UV-curing processes, but some can be toxic if mishandled or exposed in large quantities. It's important to follow safety guidelines and handle them with care, especially in industrial settings.
What activates a photoinitiator?
Photoinitiators are activated by UV light. When exposed to UV radiation, they absorb the energy and undergo a chemical reaction that initiates the curing of UV-curable materials, such as coatings, inks, and adhesives.