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Bomar™ oligomers are used to formulate adhesives, inks, coatings, and a variety of other products. In addition to their ability to undergo free radical polymerization, these versatile oligomers are the most significant contributor to the physical performance characteristics of the product including flexibility, chemical resistance, hardness, adhesion, and more.
Dymax Oligomers & Coatings has the materials you need to meet the requirements of your unique applications. From a full line of commercially available polyether, polyester urethane acrylate, and multifunctional oligomers to newly synthesized and select developmental materials, Bomar oligomers provide solutions to your most difficult formulation challenges.
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Bomar™ Oligomers Selector Guide (1.37 MB)
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Polyester Urethane Acrylates
Polyester Urethane Acrylates provides good adhesion properties to variety of substrates along with a balance of toughness and flexibility. They have higher viscosities compared to other urethane acrylates therefore they would require more diluent. Aliphatic Polyester Urethane Acrylates have excellent outdoor durability and UV resistance and provide excellent cured film characteristics. Applications for aliphatic polyester urethane acrylates include adhesives and coatings where toughness and non-yellowing characteristics are required.
Polyester Urethane Methacrylates
Polyester Urethane Methacrylates are most commonly used in applications where low shrinkage and excellent adhesion are required. Polyester Urethane Methacrylates give slower cure response and therefore need to be formulated according to. They are the preferred oligomers compared to their acrylate counterparts for applications requiring ultra-low skin sensitivity.
Polyether Urethane Acrylates
This is a workhorse family of urethane acrylate oligomer products. With Polyether Urethane Acrylates it is possible to obtain wide range of properties cost effectively. Applications range from adhesives, including laminating and pressure sensitives (PSA), to high-quality coatings for wood, metal, and glass.
Polyether Urethane Methacrylates
Bomar Polyether Urethane Methacrylates are preferred in applications where adhesion, gloss and low skin sensitivity is required. They offer lower viscosities compared to their Polyester Urethane Methacrylate counterparts.
Multifunctional Acrylates
These oligomers offer rapid cure and are ideal for coatings where premium performance is desired. Cured films range from stiff to flexible - all with excellent abrasion, stain and chemical resistance plus good hydrolytic stability. They are used in the most demanding medical and electronic applications.
Dendritic Oligomers
Dendritic oligomers mimic the performance of dendrimers, star or ball polymers that are built up layer by layer, without all of the cost and precision. Dendritics are more spherical than rod-shaped. Because of their spherical shape, they have significantly lower viscosity than typical linear oligmers of comparable molecular weights.
LS® Light-Sensitive Urethane Acrylates
Aliphatic and aromatic urethane acrylates with photoinitiator grafted into the oligomer backbone. These custom oligomers can incorporate a variety of different Type I photoinitiators (PIs). Formulations can be designed to produce coatings, adhesives, and inks that exhibit little or no PI fragments and benzaldehyde. These LS® oligomers are suitable for FDA applications.
Polybutadiene Urethane Acrylates (PBDUA)
Designed to meet rigorous electronic applications, PBDUAs have many desirable properties typical of PBD resins, combined with radiation curability via UV/EB. Recommended for applications requiring low moisture pickup, thermal cycling resistance, and high dielectric constant.
Polycaprolactone Urethane Acrylates
Polycaprolactone urethane acrylates provide similar adhesion benefits to polyester urethane acrylates but with superior hydrolytic and tear resistance. They are ideal for abrasion-resistant glass and metal coatings.
Water-Dilutable Oligomers
Dymax's new water-dilutable oligomers contains no water, but are infinitely dilutable with water (deionized). A key advantage of water-dilutable oligomers is their low viscosity. Dymax’s water-based oligomers exhibit good adhesion to most plastics and wood and have a hydrophilic nature when cured, which results in anti-fogging properties.
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