Home Improvement

Methods and Procedures for Painting Different Surfaces

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Our house is having different types of surfaces. Every surface is having different painting requirements. It is very essential to take precaution before and after the painting job. To guide you in a better way, following are the processes and procedures to paint different surfaces:

Painting New Wood Work

If you are planning to paint the new wood work, then you have to follow the below-listed steps:

Surface Preparation: The surface should be cleaned properly without any dust or greasy matters. Remember that the nails should be punched up to 3mm below the surface. The wood should not have moisture content more than 15%, it should be dry.

Knotting: Knots that exist in the wood may eject resin from wood. The knotting process is done to kill the knots. You can do it by the following two ways:

1-In first method, you can apply two coats of a solution on the surface. The first consists of 15g of red lead and 2 liters of water along with 225 gram of glue. After adding these three elements, the mixture is heated, applied, and left for ten minutes. After this, the second coat is applied and this will consist of red lead ground in boiled linseed oil and it will be made thin using turpentine oil.

2– In this method, the hot lime coat is applied on the surface and left for 24 hours. After this, you can easily scrape off the layer from the surface.

Priming New Wooden Surface: Priming is nothing but applying a prime coat or first coat on the surface. In this scenario, the surface will be smoothened using abrasive paper and the first coat of paint will be applied to fill the pores. Remember that the ingredients used in this prime coat are the same but the quantity is different. To get the best painting in your house without any problem, it is better to contact Cape Cod painting company. The expert crew will do the job using high-quality paint and the right equipment.

Stopping: After you have filled all the pores of wooden surface in priming, it’s time to fill up the cracks, holes, dents, etc.  Here putty (soft, malleable greyish-yellow paste, made using ground chalk and raw linseed oil) is used to fill material. Remember that when the putty is dried, the whole surface is rubbed using glass paper or pumice stone.

Under Coating of New Wooden Surface: Generally, for good quality works, 4 coats of paints are applied. For inferior quality works 2 to 3 coats are used. So, under coating is nothing but second or third coat of good quality work that provide you a similar look or shade as finishing coat.

Finishing of New Wooden Surface: Finishing refers to the last coat applied on the under coatings. The application should be done smoothly and in a uniform manner. This is the step that will be deciding the final look of your surface so here you need the assistance of the skilled workers.

Repainting of Old Wooden Surface

The old wood work can be repainted but previous work should be removed. You can do the removal process by the following two ways:

Prepare a solution of 1kg caustic soda in five liters of water and apply it on old paint. After the application of a solution, the old paint will get dissolved and removed easily.

2-Prepare a hot solution consisting of soft soap, potash, quicklime in a ratio of 1:2:1. The solution will be applied on the old surface and then it will be washed with hot water.

3-1:1 mixture of washing soda and quick lime is prepared and applied on the paint surface. After that, it is washed with water.

You can choose any of the above methods and the surface will be ready for painting. 2 to 3 coats of paint will be applied but before that surface will be rubbed with pumices tone and glass paper. Furthermore, if you are not able to do it on your own, then you can avail local painting services to paint your old wooden surfaces.

Painting of Steel and New Iron Surfaces

By painting the iron and steel surfaces you will protect them from rust. It is necessary to clean the surface before painting it. If there is any rust or scale, then you should wipe it off using a steel brush or wash it with benzene or lime water.

Before you apply the prime coat, the surface should be treated with phosphoric acid for better adhesive nature. After this, the prime coat is applied which is made of 3kg of red lead in 1 liter of boiled linseed oil. You need to apply the mixture using a brush.

In addition to this, two or more undercoats are applied that consist of 3kg of red lead in 5 liters of boiled linseed oil. Once it is dried, a smooth finishing coat of the desired paint is applied on the surface.

Repainting of Old Steel and Iron Surfaces

The process of repainting of steel and iron surfaces is similar to the way done to the new surfaces but the cleaning of old paint needs to be done earlier. Brushes are used to scrape off the old paint and oxy-acetylene flame is used to burn off the paint surface.

If you are planning to paint your steel or iron surface in your house, then it is recommended to call professional house painting contractors to get satisfactory results.

Painting of Galvanized Iron Surface

Generally, the galvanized iron surface is not having adhesive nature with paint. It is difficult to apply on it without any special action. You have to use a different solution on the surface.

The solutions are:

  • 40 grams of copper acetate in one liter of water.
  • 13 gram each of copper nitrate, copper chloride, muriatic acid, and ammonium chloride in 1 liter of water.

Any of these two solutions are mixed in earthen vessels and applied on a surface. When the surface becomes black, then the prime coat is applied. Once the coat is dried, then finishing coat is applied.

This was brief about the method and process of painting different surfaces. To get any of your surface painted, you need to hire professional house painters to get your house painted with the trending colors and smooth finish.