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

Allnex EBECRYL 3721 Crosslinking Agent

Allnex EBECRYL 3721 is a low-viscosity, multifunctional acrylate crosslinking agent from the EBECRYL® series, designed for UV/EB-curable coatings and inks. It delivers rapid cure speed, excellent hardness, and enhanced chemical resistance while maintaining good substrate adhesion and flexibility.
  • allnex ebecryl 3721 crosslinking agent_7805831f
  • allnex ebecryl 3721 crosslinking agent_7805831f

Features Of Allnex EBECRYL 3721 Crosslinking Agent

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

  2. Delivers excellent flexibility, scratch resistance, and chemical resistance in final films.

  3. Low viscosity enables easy formulation compatibility with monomers and other acrylates.

  4. Non-yellowing performance ensures long-term clarity and color stability in demanding applications.

  5. Provides strong adhesion to diverse substrates including plastics, metals, and coated papers.

Typical Applications Of Allnex EBECRYL 3721 Crosslinking Agent

  1. UV-curable overprint varnishes for flexible packaging and premium labels.

  2. Hard-coat formulations for optical films and touch-screen protective layers.

  3. Industrial wood and plastic coatings requiring high durability and gloss retention.

  4. Electronics encapsulation and conformal coatings where low shrinkage and stress are critical.

  5. Inkjet-receptive topcoats for high-resolution decorative and functional printing.

Specifications Of Allnex EBECRYL 3721 Crosslinking Agent

Chemical TypeAliphatic urethane acrylate oligomer
Product FormLiquid
AppearanceColorless to pale yellow, clear liquid
Viscosity (25°C)8,000–12,000 mPa·s
Functionality (average)~4.5 acrylate groups per molecule
Refractive Index (25°C)1.475–1.485
VOC ContentNon-volatile (0% VOC)
Storage Stability12 months at <25°C in sealed container under nitrogen


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