Paint Surface Preparation Determines The Quality Of A Paint Job

On January 24, 2019 by Himanshu Shah

Paint Surface Preparation Determines The Quality Of A Paint Job

It is necessary by a painter to focus on a good surface preparation as that will determine the final finish. However, the meaning of good preparation can be different to different people as well as the type of surface to be painted. Proper preparation for wood surface may not be as good for a plaster or metal type surfaces. Therefore, different types of paint preparation procedures must be followed.

Furthermore, the preparation process for a specific type of surface in the interior of a home may be entirely unsuitable for the exterior of the building made of the same kind. Using the wrong process or product will not produce the desired result, and you may even end up making a real mess of things and waste a lot of money, time and effort.

Therefore, apart from asking the contractor about the estimate for the paint job make sure that you focus on the painting process and ask specifically about the surface preparation process to be followed.

Surface preparation process to be followed will also depend on the number of years the surface was not painted. This will need a lot of work on it so that no noticeable surface imperfections are remaining that may catch your eye when you take a walk-through. Addressing them again may result in a further imperfection which is why a proper surface preparation is required right at the initial stage.

There are lots of things to do during the surface preparation process on which the pricing of the project will depend. Surface preparation process includes:

  • Lots of scraping
  • Partial stripping
  • Skimming
  • Sanding and much more.

To ensure perfect preparation of the surface, a painter should never use a spackle in the shallow depression on the wooden surface of any home exterior. This may lead to cracks, from hairline to larger ones in due course of time. This will eventually cause the paint to peel off from the surface by the first springtime and will make the exterior of your home resemble a shag rug.

There are lots of ways to save money and skip the process of surface preparation is indeed not one in this list. If you consider it from the cost savings point of view, it will be higher because you will have to pay double the original bid if to have to correct the results by getting rid of the loose paint and spackle.

Steps For Surface Preparation

Since proper paint surface preparation is essential for any paint job, you must follow the right steps and process for it. You will need to understand the surface and its requirements first and then formulate a plan. You must also take into account the type of materials to be used on the surface. All these will need a lot of time which needs no specific mention.

Ideally, most of the homeowners put in a lot of emphasis on paint finishes. Though this cannot be overlooked, it cannot be overstated either. However, if you want to make this fresh look on your home interior or exterior last for a long time, you must not underestimate the process and follow the specific steps for painting surface preparation. You may visit several websites regarding this matter such as Pridal Services and others to gain adequate knowledge or continue reading.

Listed below are the most common steps for preparation both interior and exterior paint jobs though this is not an exhaustive list but will cover almost all of the possible conditions that you may encounter during a painting project.

Interior Paint Preparation Steps:

Wash the walls to get rid of the accumulated dirt. You may use any household detergent for this. For grease and a heavy cigarette, smoke marks use TSP or Tri Sodium Phosphate. If it is powdered TSP rinse it off thoroughly with water. For mildew, use any chlorine-based bleach. Also:

  • Use a scraper or spackle blade to remove loose paint
  • Sand down rough ridges and broken off the paint
  • Dig out cracks a bit in ‘V’ shape to ensure patching material adhere
  • Apply spackle or two thin paint coats on cracks, holes and heavy paint ridges
  • Use latex caulk to seal joints around window casings, door jambs, window casings and baseboards and
  • Sand glossy surfaces with liquid sandpaper.

Before You Apply The Primer Make Sure That It Is:

  • Clean
  • Free of cracked or loose paint
  • Have no rust scale, grease, oil, mildew, and chemical residue.

Usually, Applying Primer Undercoat Has Got Two Specific Reasons:

  • To help bind the finish coat to the surface and
  • To seal the substrate so that the chemistry in it is prevented from migrating or interfering with chemical properties of the finish coat.

You will need to choose a specific primer for the particular surface so that it acts as the right foundation to support the finish coat. The best primer will guarantee the best job.

Exterior Paint Preparation Steps:

Preparation of outer surface is more intensive, and it requires step by step approach such as:

  • First, check for any leaks and moisture deposits on it that may get into the substrate. If there is any ensure these are repaired before following the rest of the process.
  • Next, check the basements and other excessively humid interiors and use vents and dehumidifiers if necessary.
  • Wash all exterior surfaces to remove mildew, excessive chalking, and dirt accumulation. You may consider power washing if the surface to wash more than 500 square feet.
  • Scrape off loose paint on stucco and repair all cracks and holes and also seal gaps under windows and door casings.
  • Remove efflorescence or calcium deposits using a stiff-bristled brush and neutralizing the salt with 5% muriatic acid solution. Rinse it thoroughly with clean water.
  • Use a good quality alkali resistant exterior primer or a surface conditioner on previously painted stucco to cure and balance the chemical reaction.

Also, remove any rusts on metal surfaces and ensure that other metals are properly galvanized. These little preparatory steps will provide the best results when the final painting job is done.

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