Colorado Springs Painting Contractors: Article About Latex Over Oil, Or Vice Versa?
Homeowners have numerous options when it comes to selecting paint. Different paints vary widely in color, finish, quality and ingredients. One of the major distinctions is between latex paint, which is water based, and solvent based paint, which is oil based and not water soluble. One of the primary differences between the two is the relative ease of cleaning up latex paint. In addition, mounting concerns over VOCs, or volatile organic compounds, have driven many homeowners to opt for latex paint for most household jobs. If repainting the walls of a home is in store, it's worth giving some consideration to which type of paint is chosen. A professional team of Colorado Springs painting contractors can then check which type of paint comprises the home's original layer.
As a general rule of thumb, it's possible to paint latex over oil, but not possible to paint oil over latex. The reason for the rule is that latex and oil based paints have certain basic structural differences. Latex, with its rubber like properties, stretches easily, whereas oil based paint is more brittle. Therefore, painting oil over latex can cause problems down the line when the foundation latex layer stretches and moves. Should the latex paint begin to shift, the oil paint on top of it will crack or flake off.
The painting contractors from Avalanche Roofing & Exteriors of Colorado Springs CO would be happy to answer any question about exterior painting or attic insulation.
If homeowners are uncertain about which type of paint is present underneath a house's finish, most professional contractors can offer advice.
On the other hand, it's fairly common for homeowners to want to cover old oil based paint jobs with a coat of latex paint. Luckily, it's possible to do so. However, in order to achieve a good finish, it's still necessary to take several key steps. First, it's important to sand the painted surface with fine grit sandpaper. Next, it's advisable to apply a mixture of water and trisodium phosphate to the paint, using a sponge to distribute it evenly. After cleaning off this mixture with water and letting the wall fully dry, add a layer of bonding primer, which can be either oil based or water based. Finally, once the primer dries, it's safe to begin painting.
Given the relative complexity of changing from oil based to water based paints, some homeowners find the prospect of a switch daunting. However, employing the services of a skilled painting contractor can ensure that the job is handled efficiently.
As tastes change and more homeowners wish to use vinyl water based paints, it's fortunate that it's possible to apply latex over oil based paints. On the other hand, if any homeowners wish to apply a coat of oil based paint, they should only do so on surfaces that are bare or already painted with oil based paints. The only alternative is to strip the wall of paint before proceeding with the new layer.