Posts Tagged ‘photoinitiators’

PL Industries to Attend 2014 UV & EB Technology Expo and Conference

Wednesday, April 16th, 2014
Share This Post!


We are excited to announce that representatives from PL Industries, a division of Esstech, Inc., will be attending the 2014 UV & EB Technology Expo and Conference, May 12th through the 14th, at the Hyatt Regency O’Hare in Rosemont, Illinois.

Our own Dr. Mike Idacavage will be teaching a short course on the fundamentals of polymer chemistry for professionals in the UV/EB technical field. The course will include an in-depth discussion on the chemistry of the photoinitiation process and will highlight a variety of polymer characterization techniques for UV/EB polymers. Click here for more information!


Please contact to set up an appointment to discuss custom solutions for:

  • Industrial Coatings
  • Ink Jet
  • Graphic Arts
  • Cosmetics
  • 3D Printing
  • Electronics

We look forward to seeing you at RadTech 2014!


Sign up for our Monthly Email Update summarizing all new posts to, CLICK HERE.



Share This Post!

Dental Photoinitiators

Friday, March 8th, 2013
Share This Post!


Simply described, photoinitiators are chemicals that generate radicals upon exposure to light.  A more complete description would include all the complexities inherent with the chemical nature of photoinitiators including type, concentration and absorptivity.  All of these factors must be taken into consideration when optimizing a light-curable formulation.

With PL Industries, the new division of Esstech Inc., we can now provide the monomers, adhesion promoters, oligomers, photoinitiators and technical expertise to guide you in your material selection.  The following is an example of our photoinitiator products.


Absorption Range:  400-550 nm, 470 nm peak

Description:  Type II, fine yellow powder, very common and effective for dental restoratives, heat aids in dissolution

2,4,6-Trimethylbenzoyl-diphenylphosphine oxide
Absorption Range: 230-430 nm, 385 nm peak

Description:  Type I, off-white, crystalline powder, dissolves in most monomers, exhibits photo-bleaching properties

1-Phenyl 1,2-propanedione (PPD)
Absorption Range:  300-480 nm, 393 nm peak

Description:  Type II, yellow liquid, believed to have a lower rate of polymerization that is not detrimental to overall conversion

Ethyl-4-dimethylamino benzoate

Description:  a tertiary amine synergist typically used in combination with type II photoinitiators such as PL-CQ


Description:  solid, off-white amine co-initiator that is low in color, requires melting or crushing to simplify incorporation

2-dimethylaminoethyl methacrylate

Description:  a clear, colorless liquid used as an amine synergist for type II photoinitiators, commonly used in 1:2 ratio with CQ

Contact Us to request samples and more information at .


To Sign up for our Monthly Email Update summarizing all new posts to, CLICK HERE.






Share This Post!

Esstech Inc. – Creating custom products & formulations to meet your unique needs!