Plaster goes quite hard quite quickly – or at least it used to. A plasterer can now get extra time to work with plaster by using EXTRATIME plaster retarder.
- Ideal for for the professional plasterer, working on large areas
- Ideal for DIYers who need more time to work
The Skill of Plastering
Working with plaster is a skill that is improved with practice. One of the hardest things to get right for an inexperienced plasterer is the timing. You cannot begin to smooth the surface of the plaster until the curing process has made the surface of the plaster firm.
So the best and most efficient, way to lay on plaster is working on different areas in a controlled way. An experienced plasterer will lay the first coat of plaster on a whole wall, getting an even covering but not worrying about the surface finish too much. Then he will lay the first coat of plaster on the next wall before returning to the first wall to add the second coat. Then he will lay the second coat on the second wall. He may then move onto a third wall to lay the first coat on that one before testing the first wall to see if the plaster has cured enough to have the final passes which will make the wall surface flat and smooth.
The reason a professional plasterer can work in this time-efficient way is that he has understanding of the materials he is using and how quickly he can work to maintain control.
An inexperienced plasterer has a choice of working on smaller sections of wall, or waiting between sections to avoid plaster going off in one area while he is working on another which makes the job longer.
Either way, working on smaller areas means mixing up more small batches of plaster. Mixing many smaller batches of plaster makes getting the same consistency more difficult – again the experienced plasterer will be able to do this effortlessly because they do it every day.
Getting the same consistence of plaster each time you are mixing is vital so that the plaster is all drying at the same rate.
Mixing a larger quantity of plaster which takes longer to go hard puts control back with the plasterer giving him more time to work however experienced he is.
EXTRATIME is mixed with the water before the plaster is added – I sachet per bag of plaster – which means the retarder is easy to work with and offers an economical solution to plastering larger areas.
“A great product for the DIYer . . . and even for the trade”
Len: Plasterer and DIY School teacher
Compare Plaster Timings
See EXTRATIME being put through its paces at the DIY School in Stockport. In this video we compared using standard plaster with plaster which has EXTRATIME added to it. We were especially interested in whether the addition of the retarder allowed for a better finish because of the extra time you have to work with the surface.
Be a Professional Plasterer
The real benefit to the tradesman who uses many bags of skim plaster on a job is that every sachet of EXTRATIME gives exactly the same results, in the same conditions. So the timing can be worked out perfectly and there is no panic to finish, however much of the wall you have laid on.