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

Allnex EBECRYL 5781 Crosslinking Agent

Allnex EBECRYL 5781 is a multifunctional acrylated urethane crosslinking agent from the EBECRYL series, designed for UV/EB-curable coatings and inks. It delivers excellent hardness, flexibility, chemical resistance, and rapid cure speed while enabling low-viscosity formulations and superior substrate adhesion across plastics, metals, and wood.
  • allnex ebecryl 5781 crosslinking agent_4c6568fb
  • allnex ebecryl 5781 crosslinking agent_4c6568fb

Features Of Allnex EBECRYL 5781 Crosslinking Agent

  1. Highly functional aliphatic urethane acrylate oligomer designed for efficient UV/EB curing.

  2. Delivers excellent flexibility and impact resistance in cured films without sacrificing hardness.

  3. Low viscosity enables easy formulation blending and improved pigment/wetting agent compatibility.

  4. Provides outstanding adhesion to diverse substrates including plastics, metals, and coated papers.

  5. Exhibits low shrinkage during polymerization, enhancing dimensional stability of final coatings.

Typical Applications Of Allnex EBECRYL 5781 Crosslinking Agent

  1. UV-curable overprint varnishes for flexible packaging and label printing.

  2. Hard-coat formulations for plastic optical components and touch-screen overlays.

  3. Industrial wood and metal coatings requiring high durability and chemical resistance.

  4. 3D printing resins where toughness and post-cure flexibility are critical performance criteria.

  5. Electronics encapsulation and conformal coatings demanding low stress and thermal stability.

Specifications Of Allnex EBECRYL 5781 Crosslinking Agent

Chemical TypeAliphatic urethane acrylate oligomer
Product FormLiquid
AppearancePale yellow, clear to slightly hazy liquid
Viscosity (25 °C, mPa·s)1,800–2,400
Acid Value (mg KOH/g)< 5
Functuality (average acrylate groups/molecule)≈ 4.2
Refractive Index (25 °C)1.475–1.485
Storage Stability (25 °C, dark)≥ 6 months


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