Menu

Commodity Search Form

PLASTICS

Description: PVC MOLDING AND EXTRUSION MATERIAL 1. (a) & (c) Humidity adversely affects the processing of the product. (b) As for (a) but with additional deterioration of electrical characteristics. (d) Drying at 50 degrees - 80 degrees C would largely overcome the effect of high humidity and fresh water, but would not get rid of the contamination resulting from contact with salt water. 2. (a) Above 50 degrees C the material consolidates. (b) Further treatment will not rectify damage caused by excessivheat. POLYMETHYL METHACRYLATE MOLDING MATERIAL 1. (a) & (c) Adversely affects processing and the general appearance of moldings. (b) As for (a) but with additional deterioration of electrical properties. (d) Drying rectifies damage due to (a) and (c) but not that caused by (b). 2. (a) The product is not damaged by temperatures lower than 80 degrees C. NYLON MOLDING MATERIAL 1. (a), (b), & (c) All three causes render the material unsuitable for use. (d) Vacuum drying would rectify damage caused by (a) and (c) but not that caused by (b). 2. (a) The product is not damaged by temperatures below 80 degrees C. Packages should be kept sealed, and require ordinary below-deck stowage. "FLUON" P.T.F.E. MOLDING MATERIAL 1. (a) No effect. (b) Adversely affects molding and electrical characteristics. (c) Adversely affects molding characteristics. (d) Drying would rectify damage caused by (a) and (c) but not that caused by (b). 2. (a) No damage results from temperatures below 200 degrees C, but above 250 degrees C toxic fumes may be evolved.
Index: 583
Commodity Name: PLASTICS

Commodity Search