Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Kingchem Benzoin GK-19 Photoinitiator

Kingchem Benzoin GK-19 is a high-efficiency alpha-hydroxy ketone photoinitiator from Kingchem’s GK series, optimized for UV-curable inks, coatings and adhesives. It offers rapid curing, low yellowing, excellent surface dryness and compatibility with acrylate monomers—ideal for LED-UV and conventional UV systems.
  • kingchem benzoin gk 19 photoinitiator_893f75c8
  • kingchem benzoin gk 19 photoinitiator_893f75c8

Features Of Kingchem Benzoin GK-19 Photoinitiator

  1. High photoreactivity under UV-A (320–400 nm) and near-UV LED sources.

  2. Low yellowing tendency, ensuring excellent color stability in cured films.

  3. Good solubility in common acrylate monomers and oligomers, enabling homogeneous formulation.

  4. Reduced odor and volatility compared to traditional benzoin ether derivatives.

  5. Compatible with both free-radical and hybrid (radical/cationic) photopolymerization systems.

Typical Applications Of Kingchem Benzoin GK-19 Photoinitiator

  1. UV-curable coatings for wood, plastic, and metal substrates.

  2. Printing inks for flexible packaging and label applications.

  3. Electronics encapsulants and conformal coatings requiring low ionic impurity.

  4. 3D printing resins (SLA/DLP) demanding high resolution and surface fidelity.

  5. Adhesives for optical bonding and medical device assembly.

Specifications Of Kingchem Benzoin GK-19 Photoinitiator

Chemical TypeBenzoin derivative (α-hydroxyketone)
Product FormFree-flowing white to off-white crystalline powder
AppearanceCrystalline solid, no visible impurities
Primary ApplicationsFree-radical UV-curable coatings, inks, adhesives, and 3D printing resins
Key FeaturesLow migration, low odor, high reactivity under 365–395 nm LED sources
BenefitsImproved surface cure, reduced post-cure odor, enhanced compatibility with acrylic-based formulations
Storage ConditionsStore in original sealed container at 5–25°C, protect from light and moisture
Safety ClassificationNon-hazardous for transport (UN classification not required); refer to SDS for handling guidance


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