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.
The length of the annual leave for an employee who has successfully passed his probationary period is at least one day per month of employment; 12 days per year of work performed. Every employees is also entitled to 11 paid public holidays.he duration of the annual leave entitlement is: (a) 5 days for employees who have accumulatively worked for 1â10 years; (b) 10 days for employees who have accumulatively worked for 10â20 years; and (c) 15 days for employees who have accumulatively worked for more than 20 years.