In many applications, as important as their physical integrity of the chemical shielding properties of the metal coating. Choose the best metallic coating for specific purposes need to assess the impact of all specific environment, including thermal and mechanical conditions. The main coating is subjected to three types of exposure: atmospheric, immersion and underground exposure. Atmospheric exposure, the main difference between immersion and underground exposure is weatherability.

The coating is exposed to the atmosphere must endure a variety of conditions, including heating and cooling, oxidation, wetting and drying. Immersion coating under conditions mainly influenced by the aqueous solution, a solution of various chemicals from water to a high concentration. Coating used in underground applications must be resistant to the impact of groundwater and soil, so they are generally thicker than the coating is applied under atmospheric conditions or under soaking conditions.

Under normal circumstances, the corrosive environment contains more active substances, the coating must be resistant to penetration of various oxidizing agents, solvents or a combination thereof caused. Therefore, the best barrier is resistant to "wide range" of corrosion.

Anti-corrosion coatings market, like many other mature markets, subject to the impact of long-term experience in the old ideas. Most of the "old guard" Engineers insists must be anti-corrosion coating of zinc-rich, this is effective. In fact, for decades, it has become a zinc ships, bridges, drilling platforms, and many other aircraft tower gold standard for marine, industrial and agricultural use in structural corrosion.

Zinc production is easy, less expensive, but are vulnerable to abrasion and chemical attack. Although zinc can be used as a good cathodic protection, zinc oxide is permeable and will drain from the metal you want to protect. In recent years, studies have shown that serious environmental risks associated with zinc, and therefore the growing demand for alternatives. This has led to a multi-layer epoxy coating and filling of conventional polyurethane coatings of zinc appears to mitigate and control corrosion. However, the market acceptance of lag. Surface treatment and need time applying multi-channel catalytic layer required laborious trouble has been associated with the formation of resistance. In addition, the companies will focus on the environmental impact of hesitation, this is because many of these alternatives coatings also contain zinc and other harmful ingredients.

Rust Bullet has created a new solution to handle all causes corrosion, and prevent further damage to the role. Based on new chemicals, new wet-cured polyurethane coating penetration layer of rust and rust make dehydration, until you reach the underlying metal surface, rather than a metal coating of zinc or zinc-resin layer under a simple protection. Using a metal foil made of alumina in the resin matrix forms a protective foil microlayer. When the coating cured, these form a layer of metal foil alignment armor, can strengthen the coating and the underlying physical metal from the shielding effect.

How to do this?

In many ways, better than zinc aluminum effect. Alumina difficult to penetrate and denser than zinc oxide produced film. Production of aluminum requires more than the energy production of zinc, aluminum oxide ratio and therefore the energy needs of more zinc oxide. Use Rust Bullet coating each side of type 2 aluminum strips are resistant to corrosion, and is five times the industrial environment zinc-coated plate durability. Typical uses include painted steel industrial and commercial roofing, railway branch lines, drying ovens, silo roof, outdoor lighting and air-conditioning outside the machine housing.

Polyurethane also played an important role. Rust Bullet using an aromatic polyurethane, but having aliphatic properties. Different aliphatic and aromatic coating is the kind used in the formulation of the polyol and isocyanate different, so they stability under atmospheric conditions are significantly different.

Aliphatic coatings are preferred for outdoor use protection, because when they are exposed to UV, weathering and hydrolysis conditions are very stable. Preparation of the raw materials used aliphatic systems are generally more expensive and have more substance than its aromatic homologues viscosity.

Aromatic coating more resistant to heat and chemical resistance than aliphatic coating. Aromatic coating is not well withstand atmospheric exposure, because UV rays can lead to yellowing and chalking.

Because polyurethane coating crosslinking density (short-chain and branched), it has a high degree of chemical resistance and moisture resistance, and excellent adhesion. These properties make polyurethane coatings positioned to protect the metal from corrosion is the best choice. Since the elastomeric properties in these areas is not very good coating, they abrasion resistance, impact resistance, and protection of the substrate than the metal (e.g., concrete) with more telescopic movement of more excellent. Rust Bullet Coatings showed excellent flexibility, impact resistance and abrasion resistance (Fig. 1).

RustBullet not an ordinary sense of the paint. In addition to gently scraping or brushing to remove loose rust large sheet, it does not require the substrate to be processed. When applied, the coating does not form a film immediately, but penetrates the porous rust layer to the underlying metal. Chemical activity to make it through dehydration or dry etching layer, allowing the resin to solidify into a tough coating with amazing adhesion.

Corrosion resin matrix particle entangled, become a permanent part of the coating. Back coating may fill any pinholes in the first layer, thereby forming an impenetrable coating. Special aluminum layer to form a new surface, to protect the substrate from corrosion attack, also used as a sacrificial anode. Polyurethane component provide a moisture barrier. When cured, the polyurethane layer of rust will capture dehydration, as part of the resin matrix - which will remove rust permanently. All of the ingredients together, Rust Bullet into a non-corrosive, flame resistance, chemical corrosion resistance, armor-like UV coating.

Construction Technology

Rust Bullet is a one-component process, within 2-4 hours, the initial coating can accept any subsequent coating. Although Rust Bullet does not require a catalyst cured by using Rust Bullet Rapid Fire curing accelerator can accelerate up to 80%. If the desired color is gray instead of metal, it can finish the construction within 24 to 48 hours in the construction of the final coating. The coatings continue to cure for about 5-7 days. Epoxy coatings generally require 7-10 days to fully cure, and the solvent evaporates, some even mandatory cure.

Due to the exothermic nature of the reaction of polyurethane curing period, the coating can be at almost any ambient temperature curing, even in the cold season. Epoxy coatings require curing temperature is above 50 ° F.

If applied incorrectly or surface treatment problem, Rust Bullet coating has almost immediately "self-check" unique features in its failure. Thus, the polyurethane coating can immediately check in after construction, any defects will be visible and can be quickly remedied. The epoxy coating is not the case, they need to extend the curing time and multi-step processes to be remedied. Remedial work after the destruction of the epoxy coatings are labor-intensive, requiring a large area outside the cleft repair. Rust Bullet coating little gap, and when it occurs, the gap is very easy to fix by simply scratching coating and additional products can be.

It requires accurate mixing ratio to avoid coating defects and damage when multi-component epoxy coating. Using Rust Bullet coating does not have this problem, because it is a one-component, multi-channel one step coating process.

Coated on military vehicles Rust Bullet coating

If the desired color is gray instead of metal, it can finish the construction within 24-48 hours in the final construction of Rust Bullet coating.

The bottom of the Mustang car has a significant corrosion

Rust Bullet coating conditions after coating. In addition to gently scraping or brushing to remove loose rust large sheet, the coating to the substrate without the need for processing.

Corrosion protection work, but there are more advantages of the coating:

•No Lead, zinc,chromate or Heavy Metal；

• Can withstand temperatures up to 325 ℃ sustained up to 72 hours without significant degradation phenomena;

• Fire spread index of 0, smoke formation index was 0.5;

• By the US Food and Drug Administration approval, it can be used for primary and secondary drinking water storage or handling equipment;

• Packaging mold, prevent further microbial growth;

• UV-resistant, resistant to chipping, scratch and chemical resistance;

• Multiple coats can step construction process.

In conclusion

RustBulletCoating has been tested by independent laboratories and university research, proved to be an effective substitute for zinc-rich alternative to adverse environmental corrosion products. It can be widely used in many applications, such as automotive, oil and gas, marine and construction industries. By protecting the metal, it can ensure that the equipment and property has a longer service life and increased structural integrity, it helps to maintain the performance value of the product.