Fungus also causes dry rot

Prevent dry rot with Forrest PaintDry rot is a weakening of wood caused by one of several species of fungus.

The fungus digests the parts of the wood that give the wood strength and stiffness.

Weakened wood is typically somewhat dry, hence the name dry rot, and brittle

The dry rot fungus has the unusual ability to transport water from wet areas to dry areas allowing the fungus to grow even in relatively dry wood.

Dry rot usually results from too much moisture in contact with wood. If not stopped the dry rot fungus will so weaken wood that it may eventually disintegrate.

Prevention of microbial defacement

  • Fungicide for use in: adhesives, paints, paper, air filters, plastics, textiles, nylon carpeting etc.
  • Broad spectrum of activity.
  • Thermally stable, no yellowing.
  • Excellent toxicological profile.

Dry Film Preservation

Dry paint films are vulnerable to a variety of microorganisms that provide a basis for algal, fungal, moss, or lichen growth and cause severe problems, such as discoloration and physical degradation.

Physical deterioration leads to an increase in porosity of the surface coating, loss of adhesion to the substrate, and moisture penetration, which results in the decay of the underlying substrate.

Algae are one of the two main organisms encountered on exterior coatings that actually disfigure the dry paint film. Unfortunately, they are sometimes confused with fungi, especially if they are brown or orange instead of green, which is more common.

Algae growth requires high humidity, a neutral to alkaline environment, and light to allow photosynthesis. To facilitate growth, algae also need trace minerals, which they can find on masonry surfaces.

Representative algal species found on contaminated paint surfaces include Chlorella, Chlorococcum, Oscillatoria and Trentepohilia.

Fungal growth prevails on north-facing walls. It is also commonly found in places where shrubbery or shaded trees restrict rapid surface drying. Paints protected from direct rainfall tend to accumulate detritus, thus providing nutrients for fungi.

In general, fungi develop more commonly on paint applied on wood surfaces than on metal or masonry, because of the rougher surface. Wood substrates are also thought to provide nutrients from the water-soluble extractives that diffuse into the paint film.

The most common fungal species found on contaminated dry paint film are: Aureobasidium, Alternaria, Aspergillus, Cladosporium and Penicillium. However, the dominant fungal species will vary significantly, depending on the climate, the substrate and the condition of the paint film itself.

Dry film preservatives are typically blends of an algaecide and one or more fungicides, designed to ensure resistance to a broad range of algae and fungi. The blends are added to the architectural paint, which is then applied to a variety of exterior surfaces.

Broad-spectrum protection for mold, mildew and algae.

 Physical deterioration leads to an increase in porosity of the surface coating, loss of adhesion to the substrate, and moisture penetration, which results in the decay of the underlying substrate.

Fungicides offer highly effective, broad-spectrum protection against degradation, discoloration and defacement caused by mold, mildew and algae and used primarily as a dry-film mildew protector for paint, coatings, stains, and more. Other applications include adhesives and printing inks.

Fungal growth prevails on north-facing walls. It is commonly found in places where shrubbery or shaded trees restrict rapid surface drying. Paints protected from direct rainfall tend to accumulate detritus, thus providing nutrients for fungi.

In general, fungi develop more commonly on paint applied on wood surfaces than on metal or masonry, because of the rougher surface. Wood substrates provide nutrients from the water-soluble extractives that diffuse into the paint film.
Prevention of microbial defacement is a critical objective to maintain the aesthetic integrity and useful life of a coating, but dry-film biocide choices are limited by:

  • Global registration status
  • Antimicrobial efficacy spectra—fungi, algae, both
  • Environmental toxicological profile
  • Compatibility with final products

Dry film preservatives are typically blends of an algaecide and one or more fungicides, designed to ensure resistance to a broad range of algae and fungi. The blends are added to the architectural paint, which is then applied to a variety of exterior surfaces.

 

Powder Coating

A gun or guns operating at a specific output and position will provide coating thickness within a certain range. If the equipment is used the same each time and is properly maintained, the film build can be predicted within an acceptable range for many coaters. Some coaters use more sophisticated methods, such as film gages, to meter the output of powder and better control the film build. Although these gages are not inexpensive, they can be extremely valuable for controlling film thickness.  Read more…

Connect Rodger Talbert

Rodger Talbert began his career in coatings in 1976 when he went to work for a small company that does metal fabrication and custom coating. He worked there for 10 years, rising to the position of VP of Sales and Marketing. He left there to work as a sales engineer for a larger company that designs and builds coating systems, and worked there for seven years. In 1993, Talbert started his own business as a consultant. He ran his own corporation for 15 years before joining The Powder Coating Institute as technical director in 2009. He served as the PCI Executive Director until June

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Powder Coating Guide

Great article!

Spraying Multiple Coats

powder coaitng two tone wheels rimsThere are several instances when powder coating where multiple coats will be involved.  Often times, it is a clear coat for added protection and appearance. Sometimes it is required, chrome powders need a clear to protect them from oxidizing.  Candy colors need a chrome base to achieve the candy look.  Also, multiple colors can be applied onto one part to achieve a two-tone look.  This article will help you apply multiple coats of powder the correct way.  Read More…

wikiHow to Powder Coat

Great article about Powder Coating

Two Methods:Applying the Powder CoatThermosets v. ThermoplasticsCommunity Q&A

Powder coating is a process of coating metal with a plastic finish applied in powder form and baked to a fluid state to bond it to the metal surface. Powder coating has many advantages over traditional liquid coating: It’s better for the environment, applies thicker without running, and is easy to style with. Although certain aspects of powder coating can be tricky, it’s certainly not difficult, especially for an enterprising soul. Proper cleaning and tools can be the difference between an amateur and a good powder coating job  Read more …

How to Apply Epoxy Floor Paint to Your Garage

Achieve auto showroom brilliance in one long weekend for less than $500

FH03SEP_EPXFLR_01-4
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Epoxy Paint or Epoxy Coating; Do you Know the Difference?

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High Temperature Powder Coatings

Our heat resistant powder products bake at lower temperatures and are stable in the box.

Process of powder coating wheels in workshop

Our heat resistant powder products bake at lower temperatures and are chemically stable in the box when stored as directed.

Using the latest resins and chemistry, Stove Bright® High Temperature powder coat is compliant with even the strictest European environmental standards for coating; making Stove Bright® the environmentally responsible solution to your high temperature coating needs.

High Temperature Powder Coatings

Our heat resistant powder products bake at lower temperatures and are stable in the box.

Forrest Powder CostingsStove Bright® High Temperature powder coatings are proven to work at temperatures up to 650°C and have been used for more than a decade.  These heat resistant powder coats are backed by experienced chemists that are constantly improving formulations.

Stove Bright® High Temperature powder coatings have been used on heating appliances such as wood stoves, pellet stoves and gas fireplaces, but they also work on Mufflers and other uses, which require good rust resistance and temperature shock resistance in service.