Plastering is certainly a very ancient technique that is still in usage today. Plaster is a natural commodity, hydrated gypsum, with the chemical composition of CaSO4.2H2O. It dries into a fine white powder that can be blended with additional water and molded. It has historically been used for interior walls and to make ornate trims.
Most new interior walls are composed of a pre-formed plaster board often called drywall or sheet rock. Similar to conventional methods they are simply mounted by nailing to studs or joists and making the joints and nailheads concealed with plastered film. Instead, the whole surface may be coated with a thin plaster paint, called veneering.You may find more details about this at R.Kenward Plastering Contractors.
Either way, plastering remains a task that can be difficult for the average do-it-yourself-er. It is a specialized skill and for the best work, contractors and homeowners hire a professional to achieve acceptable results. It requires experience not only to produce a smooth surface, but a plasterer is in a constant race with the speed of the chemical reaction as the plaster dries.
However, for smaller jobs, such as repairing wall or ceiling cracks, or small holes, home repairs can be accomplished fairly easily. Blown plaster, where the plaster has separated from the backing, is harder, but a serious handyman can tackle that.
Initial plaster coats are applied with a full plastered wall using a skimming float, a huge flat-surfaced tool that is held at a slight angle to drag the plaster across a wall. Subsequent coats are added using a technique called float and set. This simply means that the next coat is applied and floated (smoothed) and allowed to be set.
In order to achieve an excellent quality plastering job, it’s best to call in a professional except for those small repair jobs. If you’re an expert or have done it at least before and you’ve been happy with your result, then my advice to the typical guy is to leave it alone. There’s nothing worse than seeing a poor plastering job and it can be expensive to get it right.