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UV-LED and low energy curing acrylate solutions

Enhance the performance of UV-LED curable systems with Sartomer® specialty acrylates

Achieve optimum quality for your low energy curing systems

 

 

  • Higher surface cure response
  • Reduced oxygen inhibition
  • Maximized acrylate conversion
  • Improved cured film properties
UV LED curing acrylate monomer and oligomer resins

Reach excellence for your coating and printing systems

 

  • Expanding UV technology to heat sensitive substrates
  • Making the best of a limited amount of emitted light
  • Giving life to UV-LED fully cured digital systems
  • Catching up with flexo and offset printing speeds
UV LED curing acrylate monomer and oligomer resins

Most recent developments and recommendations

Chemical family Product Viscosity 25°C, Pa.s Functionality Tg, °C Young modulus, MPa Elongation, % Performance

Monomers

SR833S 0,14 2 185 / / Optimized flexibility/hardness
SR502 0,13 3 -20 / / Flexibility, water solubility
SR399 11 6 90 / / Solvent resistance, scratch resistance

Low viscosity oligomers

CN3755 1,3 2 -40 10 20 Low odor; low yellowing
CN2565 0,23 3 -16 36 11 Adhesion to non polar substrates
CN550 0,28 3 10 62 8 High flexibility
CN2303EU 0,3 6 105 260 2 Abrasion resistance
CN2306 13 6 38 985 2 Scratch resistance, high gloss

High functionality urethane acrylates

PRO21398 12@60°C 4 60 100 30 Low shrinkage
CN9210 2@60°C 6 120 1900 3 Weatherability, high gloss

 

Performance results

Accelerators performance benchmark

Formulation wt%
CN9001 45
Acrylate accelerator 20
SR341 20
CN3755 10
Speedcure* TPO-L 2,5
Speedcure* DETX 3

*by Lambson

Using SR355 (DiTMPTA) as reference
LED lamp Phoseon, air cooled, 395nm, 12W/cm2

 

 

 

 

 

 

Flexible binders performance benchmark

Formulation wt%
Flexible binder**
x
SR341 74,5 - x
SR399 20
Speedcure* TPO-L 2,5
Speedcure* DETX 3

*by Lambson

**Adjusted compositions to the same viscosity level

LED lamp Phoseon, air cooled, 395nm, 12W/cm2

 

 

 

 

 

Urethane acrylates performance benchmark

Formulation wt%

High functionality

urethane acrylate

55
SR341 30
CN3755 10
Speedcure* TPO-L 3
Speedcure* DETX
3

*by Lambson

Using CN9196, hexafunctional urethane acrylate, as reference
LED lamp Phoseon, air cooled, 395nm, 12W/cm2

 

 

 

 

 

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