What is the minimum film-forming temperature (MFT) of redispersible polymer powders?

Kima Chemical can provide some general information on MFT and its importance in the performance of redispersible polymer powders.

MFT is the temperature at which a polymer dispersion can form a continuous film when dried. It is a critical parameter in the performance of redispersible polymer powders because it affects the ability of the powder to form a cohesive and continuous film on the substrate.

The MFT of redispersible polymer powders varies depending on the type of polymer, the particle size, and the chemical composition. Generally, redispersible polymer powders have an MFT range between 0°C to 10°C. However, some polymers may have an MFT as low as -10°C or as high as 20°C.

In general, a lower MFT is desirable for redispersible polymer powders as it allows for better film formation at lower temperatures, which can result in improved adhesion, flexibility, and durability of the coating. However, the MFT should not be too low as it can result in poor water resistance and film integrity.

In conclusion, the MFT of redispersible polymer powders is an important parameter that affects the performance of the coating. The optimal MFT depends on the specific application requirements and the type of polymer used.