TQC SHEEN VF9700 MFFT-MINIMUM FILM FORMING TEMPERATURE BAR
Temperature gradient plate for determining minimum film forming temperature test.
The minimum film forming temperature is the lowest temperature at which an emulsion, latex or adhesive will uniformly coalesce when applied on a substrate as a thin film.
Knowing the MFFT temperature allows formulators to create a product that cures correctly under the required application conditions. The instrument can also be used to define the white point/glass transition temperature of dispersion materials, synthetic resins, enamels etc. and the blocking power and stacking capability of coated papers, foils, prints
The MFFT TEST is a sophisticated test instrument with a ground hard-chrome plated metal platen as to deposit the specimen. By heating and cooling the platen any variable temperature gradient within the range of -30 to +250 °C can be produced and kept constant for any given period. The platen is equipped with10 or 20 evenly spread temperature sensors. The temperature is controlled through an integrated digital controller with a touchscreen and measuring-points elector that covers the whole range.
To define the MFFT the specimen is applied on the platen with a film-applicator and protected from ambient conditions through a transparent cover in which a flow of dried air is created to prevent condensation and to assure repeatability. To determine the blocking power the specimens on the platen are weighed by defined loads to simulate the stacking capability.The MFFT TEST meets the following standards: acc. to current standards: DIN ISO 2115 DIN53366 ASTM D 2354 ASTM D 1465 ISO 2115 ISO/DIS 4622