What should I know before buying PU color paste?

Before purchasing PU color paste, you should understand the indicators and shelf life of PU color paste.
Light resistance, weather resistance, color paste fineness, and storage stability are all ways to judge the quality of color paste.
Even after the warranty period, the color paste produced by the adopted technology can still maintain very good fluidity, no sedimentation, and no stratification.
Some inferior products have become very thick and have no fluidity for a long time before the product expires, so the shelf life of such color paste is very short. In addition, different color paste products have different shelf life.
Due to the coating of fluorescent resin, the shelf life of fluorescent color paste will be shorter than that of general water-based color paste.
For some special color pastes, the stability will be shortened due to technical difficulties.

Open the PU color paste packaging barrel before use, and carefully check whether the color paste is agglomerated or precipitated at the bottom. When you see obvious situations such as delamination and no fluidity of the color paste, you should contact the manufacturer or distributor of the PU color paste in time, and do not use it casually to avoid loss.