fluids 1 melt viscosity is determined in accordance with the following procedure using a brookfield laboratories dvii viscometer in disposable aluminum sample chambers the spindle used is a sc 27 hot melt spindle suitable for measuring viscosities in the range of from 10 to 100 000 centipoise the sample is placed in the chamber which is in turn inserted into a brookfield thermosel and locked into place the sample chamber has a notchon the bottom that fits the bottom of the brookfield thermosel to ensure that the chamber is not allowed to turn when the spindle is inserted and spinning the sample is heated to the desired temperature with additionalsample being added until the melted sample is about 1 inch 2 5 cm below the top of the sample chamber the viscometer apparatus is lowered and thespindle submerged into the sample chamber lowering is continued until brackets on the viscometer align on the thermosel the viscometer is turned on and set to a shear rate which leads to a torque reading in the range of 30 to 60 percent readings are taken every minute for about 15 minutes or until the values stabilize which final reading is recorded 2 blocking resistance is determined by preparing a polyamide coated sheet of 20 bleached kraft paper standard copy paper having a polyamide thickness ranging from about 0 6 to 1 mil using a suitable coating device or draw down technique the polyamide coated paper is then cut into 1 34 strips and conditioned at 50 relative humidity for two hours at least three strips of the polyamide coated paper are placed on a tray and a piece.