Cardolite’s line of hydroxyl functional polyurethane diluents are an effective way to reduce viscosity without the use of solvents.
The NX-202X line represents various cardanol grades suitable for use as diluents in various systems that include epoxy and polyurethane chemistries. NX-2024 and NX-2025 are low odor, standard grades with different initial colors. NX-2026 is our highest purity, lighter color grade (Gardner <1). Another good option is Ultra LITE 2020, a monofunctional ethoxylated cardanol. The graphs below show the dilution efficiency of some of our materials.
In addition, Cardolite offers a line of ethoxylated cardanol materials that can be used as surfactants in polyurethane systems and may help lower viscosity as well.