Mirror finish polished 4" Dia. 316SS platens for making polymer films, threaded for optional handle with drilled thermocouple port, set of 2. The 4" diameter polished platens are useful for making large diameter polymer films. The platens are made from 1/2" thick 316SS. Platen surfaces are polished to a mirror finish. There are ports in the platens to enable insertion of a thermocouple probe. The platens are also tapped with a female thread to allow attachment of an optional handle. Optional spacers to contain polymer samples are available in thicknesses and diameters specified by the customer. The platens are compatible with our standard heated platens (0012-6664).
The Precision Thickness Film Maker produces thin films which are highly reproducible from sample to sample using hardened steel spacers to separate the two mirror finish optically polished surfaces for the anvils. The entire assembly and the sample are placed between heated platens, heated to close to the softening point and pressed with a hydraulic press to form the film. By using matte finished foil inserts between the anvils, interference fringes can be avoided. Excess sample runs off into a trough to prevent interference with the formation of the film. A water cooled chamber is provided into which the entire assembly with the film can be inserted for cooling after the film has been pressed.