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Concrete and Wood Sealant Research


CONCRETE SEALANT

The life of concrete is limited by a number of disintegrating factors:
Weathering by rain and frost action is chiefly a function of water-tightness or impermeability, since leach and attack by the carbonic and other acids present in rainwater, and disruption by frost action, depend on the penetration of water into the surface.

Chemical attacks such as industrial chemicals and wastes; sewage, animal and vegetable oils, fats, grease, milk, and sugars. Wear by abrasion from foot and vehicular traffic, by wave actions, and by water-borne and wind-borne particles.

Concrete has the tendency to be porous due to the presence of voids formed during or after pouring. It is usually necessary in order to obtain workable mixes, to use far more water than necessary for chemical combination with the cement. This water occupies space, and when it later dries out, it leaves behind air voids.

Gases such as carbon dioxide and sulphur dioxide in damp situations, attack concrete. Sulphuric acid also attacks concrete, but the attack from sulphuric acid is likely to be accompanied by abrasion. Sulphates of sodium potassium, magnesium and ammonium may cause serious damage to cement concrete in the presence of moisture. This begins by expansion within the concrete, which may be enough to cause general expansion in the member.

Concrete Sealant

Cracking and disruption follow. Cracks provide a path for soluble chemicals to migrate into the interior of the structure causing deterioration of the concrete. Fertilizers often contain ammonium, potassium and magnesium sulphates. Generally, non-organic acids are destructive to concrete. These may also be released from some salts such as ammonium chloride and ammonium nitrate by interaction with lime. Leaching then follows. A number of fertilizers are soluble in water, allowing the chemical easy pathway to the interior of the concrete. Although petroleum oils are not known to cause extensive damage to concrete, they do penetrate into the pores and cause unsightly staining, with subsequent high maintenance cleaning as well as possible contamination of the soil below leading to environmental issues. Organic acids such as stearic, oleic, lactic and tannic all attack concrete.

Sewage normally has an alkaline reaction and is harmless, but it may become acid by contamination with factory wastes and will then attack concrete. The concrete along the top of sewers can be severely attacked as the result of hydrogen sulphide gas being evolved from the stale sewage. The hydrogen sulphide is oxidized by anaerobic bacteria to form sulphuric acid which condenses on the walls of the structure. The attack may be rapid mainly in warm and humid conditions and where ventilation is poor.

PermaSeal Concrete Sealant’s unique formula allows for permanent protection against spalling, alkali damage, water seepage, dusting, hairline checking and other types of concrete corrosion and deterioration.

PermaSeal Concrete Sealant is an industrial quality sealer for use on new or existing concrete and masonry.

PermaSeal Concrete Sealant chemically reacts with concrete to create a new material, not concrete, not sealant, but a building material with the best properties of both. PermaSeal Concrete Sealant protects concrete from the effects of acids, salts, oils, and more.


WOOD SEALANT

Mold, Mildew, Fungus, Rot and Your Environment

There are plenty of articles and web sites that discuss the environment required for the success of mold to live, grow and multiply. According to research, two requirements that are accepted as fact are moisture and food. Also, what we generally call wood rot is caused by the natural action of fungi converting wood to a source of food. Oxygen, moisture and a 40°F to 100°F temperature is all that fungi need to colonize wood. Wood rot and mold can be prevented by eliminating any one of these factors. PermaSeal’s permanent solution is to control the moisture.

Wood Sealant

There are naturally occurring woods such as Western red cedar and redwood that are toxic to fungi. The source of these woods is too small or too costly to meet today’s requirement for rot resistant lumber. Wood species that are not naturally rot resistant are treated with pesticides (CCA) to try to imitate nature. The world is becoming less tolerant of using pesticides, and many countries are either banning or restricting the use of Chromate Copper Arsenate (CCA) as a means of wood preservation. The wood preservation industry has started to utilize a new chemical formula ACQ (Alkaline Copper Quaternary) as a pesticide which is reported to be corrosive to metal fasteners and be costlier than CCA.

At PermaSeal we believe the traditional wood preservation industry has missed the obvious. The focus appears to be on eliminating the organism after it has spred. However, what needs to be addressed is the environment that allows the organism to grow and flourish.

PermaSeal Wood Sealant creates a permanent, effective seal against moisture, acids, time and weather, while hardening, increasing density and strengthening new or existing wood.

PermaSeal Wood Sealant does not stain or colorize the wood and allows for painting and/or staining wood surfaces. Paint and stains last up to 300% longer.

PermaSeal Wood Sealant seals new and old wood and will also re-seal aged pressure-treated wood.