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BMI-3000 J is a bismaleimide oligomer that exhibits excellent flexibility and, on cure, forms very tough, hydrophobic polyimides. BMI-3000 J has been processed specifically to limit the content of species < 1,000 daltons to less than 1% by weight making registration easier in some countries. The material has excellent low pH hydrolytic resistance and thermal stability. As an additive, it can improve rheological properties by increasing the thixotropic properties of a liquid monomer composition. This feature, in turn, can help to reduce resin bleed out on a variety of surfaces. It is soluble in most aromatic and aliphatic solvents such as toluene, xylene, NMP, etc. It can be processed in a resin system as a solid or dissolved in a solvent.
BMI-3000 J is recommended for use as an additive to increase flexibility, hydrophobicity, and thixotropy. It has excellent adhesion to a variety of substrates. When used as a base resin, it can produce films that are tough, flexible and demonstrate good peel strength.