Paint consists of two parts - pigment and binder. Pigment provides color and binder is what holds pigment and adheres to the surface. Better quality paints have better quality pigments and binders.
Having been in the painting industry for over 30 years, Greg has dealt with every paint supplier in Calgary.
Paint manufacturers make high and low quality products. A certain brand does not mean it is a good quality product. All paint manufacturers make top quality paints and low quality paints. It is important that the painting contractor uses the top quality paint, not the cheaper low quality paint.
There are two types of paint suppliers in Calgary:
1) Factory stores like Cloverdale Paint, General Paint and Sherwin Williams, and the
2) Dealers like Walls Alive, Paint Direct, Benjamin Moore and Box stores. The reasons why most painting contractors prefer to use the factory stores is because of:
a) better service
b) better color matching
c) more experienced staff
d) better pricing
e) better support
Factory stores offer better pricing to contractors because the middle man (dealer) is not there. This means that the contractor will be able to pass this savings on to the customer. As a result, customers get a better quality product at a lower price.
So if you think that specifying a certain brand is going to make sure you get a good quality paint, you might be mistaken. Instead, specify a certain type of paint (like 100% acrylic, elastomeric, high performance stains, etc). Specifying Benjamin Moore, C2, Cloverdale Paint or General Paint doesn't guarantee a top quality product,as all Paint Companies have at least 4 lines of Paint. Find out which product is actually being used and not just the brand name.
Elastomeric paint is one of the best exterior products available. It helps extend the life of stucco, concrete and even deteriorating wood. It has to be applied properly; this means 2 coats at 100 to 125 sq ft per gallon. Now, this is where most of the cheating occurs. The product looks great after 1 coat, but you need the second coat in order to get the benefits of the elastomeric properties which most painters don't apply properly.
If there is moisture behind the wall, the coating will fail. The situations where this usually happens are:
a) block walls where moisture gets into the wall through damaged flashing,
b) high moisture content on interior with improper ventilation or seals,
c) snow piled up against wall, melting and water working its way up the wall and peeling the coating, or
d) busted water line in interior of wall.
Regarding rotten wood, deteriorated stucco, deteriorated mortar joints - If the substrate is not sound, there is nothing that will adhere to it and failure will eventually occur. To prevent this, make sure the substrate is sound before painting.
If these items are taken into consideration and rectified, you will get a product that would last 2-3 times longer than a conventional paint job.
WHAT YOU CAN EXPECT TO FIND IN PAINTS
Expect to find the following in household paint: Volatile vehicle, Non-volatile vehicle and Pigments
The volatile vehicle is the liquid in paint. Its job is to evaporate, leaving behind a uniform, protective film. The volatile vehicle varies:
Latex paints: Water is the volatile vehicle in these paints. With water, small amounts of glycols and other substances keep a latex paint easy to spread. Neither the water nor the glycols and other substances present significant toxicity.
Solvent paints: Mineral spirits, alcohol and esters are among the organic solvents used as volatile vehicles in these paints.
The non-volatile vehicle, or binder, is the polymer or resin left on a surface after the volatile vehicle evaporates. Dry, non-volatile vehicle is fairly non-toxic and presents no real health hazard.
The non-volatile vehicle varies:
Latex paints: Latex is the non-volatile vehicle in latex paints. Latexes are small particles. When paint dries, they come together to form a continuous film that holds to a surface.
Solvent paints: Alkyd or alkyd resin is the most common non-volatile vehicle used in solvent paints. Alkyds are made when drying oils react with chemicals. They form a film by combining with oxygen and cross-linking.
Pigments are usually bound to the non-volatile vehicle in paint and are not dispersed in the environment during painting. Latex and solvent paints use the same pigments. The main types of pigment are:
Hiding pigments: Found in white or pastel-colored paints, these pigments hide an underlying color. The main hiding pigment in paints, titanium dioxide, is also used in foods and personal care items like toothpastes.
Specialty (extender or inert) pigments: These pigments thicken paint or add durability or gloss. The main specialty pigments, calcium carbonate, talc and clay, occur naturally.
Colored pigments: Colored pigments add color or hide an underlying color while organic pigments contain carbon. Their low levels of toxicity do not arouse major environmental concern. Inorganic pigments are either naturally occurring or would not break down when disposed of.