The second step is called polishing, this is where the plaster is sprayed or brushed with a light film of water and then polished down with a trowel or sponge to produce a smooth finish. As of May 2011 the cost of materials for a single layer of plaster skim are between 50-75p per m 2.he second step is called polishing, this is where the plaster is sprayed or brushed with a light film of water and then polished down with a trowel or sponge to produce a smooth finish. As of May 2011 the cost of materials for a single layer of plaster skim are between 50-75p per m 2.
Required length of work term. 1  Work terms must consist of full-time employment (35-40 hours per week) for 16 weeks (matching the length of a four-month academic term). Work terms generally start and end on the dates published in Quest, under Important Dates.
In 1981, the General Accounting Office performed a study on American work days. It evaluated the number of working days each year over a 28-year period, which is the length of time it takes for a calendar to repeat itself. Most years (17 out of 28) had 261 working days. Seven years had 260 work days, and four had 262 work days. The study also found that there are approximately 2,087 standard working hours in a year.