UBE Urethane Systems are a leading innovator in the development of Low Free (LF) isocyanate technology which brings unparalleled performance and industrial hygiene to cast elastomers, coatings, and adhesives applications.
The EU has passed the regulation restricting the use of diisocyanates. Low Free (LF) isocyanate technology enables customers to comply with minimal effort and maximum quality.
UBE Urethane Systems are the only manufacturer offering LF urethane prepolymers with levels of free isocyanate below 0.1% across a wide range of chemistries, including TDI, MDI, pPDI, and HDI, and are constantly working to broaden this offering even further.
Our range of PU prepolymers contain less than 0.1 wt% of residual isocyanate for improved industrial hygiene, and a controlled morphology which offers improved performance and higher productivity across PU elastomers, coatings, and adhesives.
UBE Urethane Systems are a leader in low free monomer prepolymer technology -- and prepolymer is the key. Instead of using just raw isocyanate and polyol with a curative to create an elastomer, using prepolymer provides the following benefits:
Low Free prepolymers have low residual isocyanate content of less than 0.1 wt% for improved health and safety during handling and processing. These prepolymers protect workers from potential exposure to residual isocyanate, minimize EH&S workload, and offer reduced hazard classifications.
Low Free prepolymers are chemically structured to provide superior performance, including excellent toughness, fatigue resistance, longer lifetimes when exposed to extreme conditions of temperature and chemicals, and low hysteretic heat build-up for dynamic applications. These prepolymers are used in the most extreme environments including oil and gas, wheels and tires, and mining, along with many other uses in construction, agriculture, automotive, electrical, office equipment and personal care.
Low Free prepolymers enable you to streamline your manufacturing processes. With the ability to achieve lower viscosity than conventional prepolymers, they enable the casting of very large and complex parts, can minimize the use of solvents in formulated coatings and adhesives, and may be specially formulated for processing at ambient temperature. These prepolymers offer lower viscosity, longer pot life and faster demolding with a range of curatives and catalysts to enable very high productivity.
Adiprene® LF TDI prepolymers take conventional TDI technology to the next level of performance and safety. By reducing free TDl levels to below 0.1%, these systems greatly improve workplace industrial hygiene and enable the use of PU prepolymer systems with lower viscosity, longer pot life, and faster demolding. Adiprene® LF TDI systems offer strong performance and easy processing for a wide range of applications.
Adiprene® LF MDI prepolymers provide significant health and safety advantages due to low free isocyanate levels (in some cases as low as <0.1%, and the ability to cure with dios, in addition to a range of other suitable curatives.
This ground-breaking innovation enables customers to pour parts with outstanding dynamic performance, excellent retention of properties, and high load bearing capabilities.
Adiprene® LF pPDI prepolymers, with <0.1% free isocyanate, offer elastomers designed to withstand extreme conditions, where excellent resistance to high and low temperature, water, and chemicals is critical to performance and long part life. They are often used in dynamic applications because of their long life with very low heat build-up from hysteresis and superior fatigue resistance.
Adiprene® A liphatic LF HDI prepolymers have less than 0.1% free monomer and offer excellent physical properties for applications requiring UV stability and weatherability.
Trixene® low free isocyanate prepolymers are chemically structured to provide superior performance, including excellent toughness, fatigue resistance, and longer lifetimes when exposed to extreme conditions of temperature and chemicals. They are used in a diverse range of coatings, adhesives, and sealants.
