Friday, August 24, 2007

About Oil Based Paint

We still, after several years of preaching the evils of oil based paints, have clients experiencing costly failures as a result of choosing oil based products for their projects. There are numerous product performance issues, as well as health-related reasons not to use oil based paint products for most interior and all exterior service. I acknowledge some specialized instances where solvent based products are required. We just see so many painters who choose oil based products for their ease of application and smoothness, at the expense of long-term performance. In most cases involving home finishes, oil based products generally contribute to early costly failure and inconvenience of use.

About Oil- based Paint
Oil-based Paints have long been associated with smoothness, hardness and durability. Numerous ingredients that gave oil base paint its durability have been banned or regulated, with good cause. There are numerous recognized health concerns related to solvent exposure among workers and homeowners. Oil-based products require solvents for cleanup. Paint thinner costs over $6.00 in most markets, and it is a PETROLEUM BASED product. The dirty solvent then must be disposed of, which, when done properly, is costly, and inconvenient. Many times dirty solvent is simply stored, or improperly disposed of. We discourage the use or storage of painting solvents in the home. It is a preventable risk, especially if within the reach of children or pets. Waste thinner on a jobsite can sometimes be a hazard. Besides, water is free. For times when a safe solvent is required, consider Soytek for a variety of safer, effective solvents for projects.

We observe frequent failure of alkyd (oil) based enamels on interior doors and trim. Most oil based products have superior performing, environmentally friendly
alternatives available. We strongly encourage the use of water-based paint technology.

All interior wood expands and contracts, and oil based enamel gets much too hard and brittle, leading to cracks in the finish within a year or two of painting. Interior oil based paints continually yellow and harden as they age, leading to perpetual maintenance as the finish begins to chip and crack in corners.

In summary, Premium Acrylic enamels will outperform oil-based products on interior woodwork and doors with respect to performance, cost, dry time, and ease of use.

Exterior Acrylics
For the exterior, Acrylic house paint will expand and contract with changes in wood, where oil- based paint will not. We frequently see residential customers bearing the cost of preventable paint failures and wood replacement on homes only a few years old, as the result of the continued use of oil based paint. Alkyd oil-based primers and paints grow brittle with age, causing them to lose flexibility and ultimately lose adhesion. Alkyd oil-based primers and paints are non-breathable, limiting their life over naturally moisture-containing wood surfaces. The oils in alkyd oil-based primers and paints are natural organic materials which serve as mildew food and actually promote
mildew growth. We frequently observe poor color and gloss retention, and often see poor chalk resistance, when compared to top-quality 100% acrylic paints. See Failure:
We highly discourage the use of oil based paint on most exterior wood. In summary, top-quality 100% acrylic primers and paints are clearly more effective than alkyd oil-based paints in all critical areas of product performance: wood protection, long-term appearance, durability, and reduced maintenance.

When coating over existing oil based paint with acrylic paint, be sure to follow manufacturers recommended preparation procedures, and use only PaintSource Approved Premium 100% Acrylic Finish.

Priming Exterior Wood
About Alkyd Yellowing
Wood Shrinkage
Wood Finishes
Exterior Oil Paint Failure

More Topics )

All the best until the next..


Choosing Interior Paint...By BJ Andriot......Choosing the right color and finish for your project:

Monday, August 13, 2007

Hardwood Floor Finishing. How to Schedule with Painting on New Construction

Today we will discuss Hardwood Floor Finishing. We hope to help you decide how to Sequence Floor Staining and Finishing with Painting on New Construction projects.

Builders, subcontractors, and homeowners many times find it difficult to sequence the various steps during new home construction. Hardwood floor installation, staining, and finishing typically create one of the biggest logistical challenges to the project manager. Wall and ceiling painting many times involves ladders and scaffolding, which can damage freshly installed and finished floors.

So you might think to paint before you install the floors, right? No. The problem is that newly installed floors must be sanded prior to staining and finishing, creating a tremendous amount of dust. The machines used for sanding are bulky and heavy, and many times result in dented or damaged walls and moulding. The dust generated by sanding would certainly compromise the quality of any freshly painted surfaces. Even small amounts of dust on freshly painted walls will make touchup of paint virtually impossible, as the seemingly invisible dust becomes quite visible in the presence of the moisture in the paint.

So you might think to install wood, sand it, and then call the painters in, right? No. Even if flooring is installed, sanded, and left unfinished, drywall mud and paint can impregnate unfinished and unsealed floors making staining and finishing difficult for the installer.

The concensus among many hardwood and painting professionals is to install, sand, stain, and 1st coat and even second coat all hardwood. Allow the finish to dry sufficiently, then cover the floor with Builder Paper. Attach the paper with Safe-Release Green Tape at the perimeter only, then use conventional masking tape to tape the paper sheets where they overlap each other. For scaffolding or heavy ladders, lay down thick cardboard over the paper where needed to protect from dents or gouge s. For heavy work, use 4x8 sheets of thin plywood or sheeting to prevent damage from tool drops and ladders. Once the painting process is complete, the floors can be uncovered, and the floor finisher can prepare the floors and apply the final coat or coats of finish.

Good luck on your projects.

All the best.


More about Hardwood Floors

Monday, August 6, 2007

Common Paint and Wood Coatings Problems.

Many of my articles will be dedicated the next couple of months to existing and prospective homeowners who are faced with paint and wood care projects for new or existing homes. We constantly are asked to advise on a number of common paint and wood coatings projects. I will attempt here to share with you here, and on the Painting Information Network, all that we know so that you can make the best choice when choosing products, procedures, and contractors for your projects.

We are obligated to the manufacturers of none of the products that we discuss here. We will present our products of choice for various painting, caulking, and specialty coatings projects. These choices are based on continual evaluation of past projects, and various products' durability and performance. Our history has enabled us to evaluate the long-term performance of numerous brands and types of paint products. We continually research and evaluate new products, tools, and procedures available for a variety of painting and specialty coatings projects.

If you are building a new home, PLEASE visit our Guide to Painting New Homes before you begin your project:

We present many Common Problems and Better Solutions on The PaintSource Network. Despite tremendous advances in paint and coatings technology, many builders, contractors and property owners still use products that have costly long-term consequences when wood rots, metal rusts, bricks crumble, walls crack, or paint peels. We continually see preventable paint problems and costly failures due to the use of incorrect or inferior primer/paint/caulking combinations. It is usually the homeowner who bears the cost of these choices. We hope to assist you in making an informed decision when choosing paint, deck finishes, hardwood floor finish, and other wood coatings products for your home.

Many widely used paint and caulking products are old technology historically proven to fail. We frequently see residential customers bearing the cost of preventable paint failures and wood replacement on homes only a few years old. Many times, product choices are made based on short term savings on material, or simply a lack of awareness of newer, superior performing products availability. In many cases, homeowners or builders may force contractors to use cheaper products by encouraging and demanding lower bids and cost-cutting approaches to paint and finishing projects. Miniscule profiteering on materials results in cheaper products being used in all phases of many projects.

We hope to help you evaluate cost-effective choices for every aspect of your project. By helping our clients get all the products and supplies needed to complete a project, there is no pressure on the contractor to even consider cost minimizing of materials for your job at the expense of quality.
We strongly encourage the use of water-based paint technology for your painting projects. There are superior performing, environmentally friendly alternatives to solvent based paints, primers, and wood coatings.

Many paint failures result from the "one product does it all" approach. We seek manufacturers committed to the highest levels of performance and quality. Many readily available paint and caulking products boast from 10-45 year durability, yet we see widespread problems and failure, inside and out, within 3-5 years on many new homes and other types of buildings.

By considering your existing conditions, as well as product requirements and expectations, we seek to provide you the best advice for coating systems and paint products available. We continually consult with other professionals to further expand the information made available here. This information contained here and on our website is intended as a tool for you to evaluate different options and products available. Final product or procedure decisions must be made based on your specific existing conditions and requirements.

All the best until the next.


Featured Article Today:

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(Deck Refinish Project)