Enhancing Adhesion with Modified Urethane Acrylates

For today’s adhesive and coating formulators, enhanced adhesion is more than just a performance metric—it’s essential to product integrity, durability, and long-term value. Whether developing bonding materials or functional coatings, achieving reliable adhesion across a range of substrates is fundamental to ensuring a formulation performs as intended in real-world applications. From structural strength to resistance against environmental stressors, strong and stable adhesion is at the core of successful material design. In a recent study, Bomar chemists evaluated a selection of next-generation urethane acrylate oligomers for their adhesion capabilities across common industrial substrates. The results highlight promising new pathways for formulators.

The objective of this research was to evaluate how the novel Bomar urethane acrylates - BR-572SL, BRC-843SL, and BR-374SL - perform in adhesion-critical environments. The study explored physical properties, substrate adhesion, and the influence of curing conditions on performance. It aimed to equip formulators with valuable insight into optimizing adhesion across key surfaces.

Testing included:

• Glass-to-glass compression testing (pre- and post-humidity exposure)
• Crosshatch adhesion on steel and aluminum
• 180° peel testing on PET and BOPP laminates
• Cure condition optimization across temperature and humidity ranges
• Fatigue and viscosity testing to evaluate mechanical durability
   

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Need Help Selecting the Right Oligomer?

If you’re working on applications that demand superior adhesion, our technical team is here to help. We can recommend the best Bomar materials for your requirements — and provide samples for in-house evaluation.