Ductile Iron Pipe ~ The Water Industry’s Most Widely-Used Pipe

The Rust Bullet Application

Q: What is Ductile Iron Pipe?

A: Ductile iron (also referred to as ductile cast iron, spheroidal graphite iron or nodular cast iron is much more flexible and elastic. In ductile iron the graphite, created when molten cast iron solidifies, are spherical nodules rather than flakes (as in grey iron). These nodules inhibit the creation of cracks and provide enhanced ductility (manipulation without fracture). Ductile Iron was initially developed for use in the gas industry but has since been used extensively in the water industry.

Q: What is the expected life of buried Ductile Iron pipe?  More »

A Review Paper on Paints and Coatings

6 Types of Paints and Coatings Failure and Their Causes

Abstract

In this introductory survey failure analysis methodology will be applied to the principal mechanisms
by which paints and coatings fail during service. How to conduct a failure analysis, stages of analysis,
proper techniques for sample removal, destructive and non-destructive techniques, primary causes and
modes of failure, and specific case studies will be discussed.

Introduction

A tremendous amount of financial loss is incurred every year as a result of premature failures of
paints and coatings. The cost to repair such failures far outweighs the initial cost of painting, since excessive
rigging may be needed to access the failing areas. Additional liability may also be expected if a facility must
stop operation for the necessary repairs to be made. Coating failures can occur for dozens of reasons,
although they are typically a result of poor application, a defective coating, or an inadequate specification. A
determination of the fundamental causes behind coating failures is critical. Not only does this help in
assigning financial responsibility, but knowing how a coating has failed is often the first step in planning
how to fix it. More »

KAP Corrosion Control and Application Consulting – Engineering Report

KAP Corrosion Control Services Canada 12.10.07

The purpose of this report is to define the Isocyanates found in the Rust Bullet Product Formulas.
Isocyanates are a family of highly reactive, low molecular weight chemicals. Spray-on polyurethane products containing Isocyanates have been developed for use as protective coatings for various substrates. Preventing exposure to free Isocyanates is a critical step in eliminating health hazards, whereas bound Isocyanates do not pose health or environmental risks.

Rust Bullet Products contain diisocyanates (MDI) and MDI based polyisocyanate. These elements are well bound within the formulation of Rust Bullet Products, are not free for release into the atmosphere and are not to be confused with free Isocyanate ions. More »

Rust Bullet Coating Dielectric Strength

Dielectric Strength of Coatings By Kathline Spring

* The dielectric strength of an insulating material (i.e. Fully Cured Rust Bullet Coating) is the maximum electric field strength (i.e. 25kV, etc.) that it can withstand intrinsically without breaking down (experiencing failure of its insulating properties)

* The ASTM D-149 measures a materials dielectric strength. The higher the dielectric strength the better the ability to resist voltage breakdown.

* Good Insulators have high dielectric strength More »

Industrial Rust Inhibitive Rust Bullet Coating

Rust Bullet Specifications for Surface Preparation & Paint Application on New & Uncoated Steel

The Product Data Sheet (PDS) and Material Safety Data Sheet (MSDS) are integral part of these instructions. Material should not be handled or used without reading and understanding this information.

The following instructions are intended for professional application by trained workers, using equipment suitable for the task at hand. Neglecting to follow instructions or omitting steps in whole or in part may be detrimental to the coating’s performance, durability and appearance.

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Powder Coat or Rust Bullet Coatings?

Rust Bullet Coatings – Your Best Option

Powder coating, a free-flowing dry powder is typically applied electrostatically and cured in high heat specialty ovens. Due to its powder form this coating does not require a solvent to keep the binder and filler parts in a liquid suspension form. Powder coatings are typically a hard finish that is tougher than conventional paints, can be applied in much thicker DFT without running or sagging, a near zero VOC emission and no waste.

* Powder coatings are typically a hard finish and tougher than conventional paints
* Rust Bullet, a smooth hard, impermeable surface~ scratch, chip, chemical and UV resistant with a look and feel very similar to a powder coating.
* Powder Coating is limited to stationary application locations. The application and curing must take place at the application station with specialty equipment and curing ovens.

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Rust Bullet Coating on Copper Surface

A Summary For Rust Bullet By Kathline Spring

GALVANIC ACTION BETWEEN ALUMINUM & COPPER

* As Rust Bullet contains aluminum, being 1 on Table 1.1.4 – Nobility of Common Metals and copper being 8 of the 9, the distance is great. The greater relative difference in nobility between the two metals in contact indicates a greater corrosion potential. When dissimilar metals are in contact with one another in the presence of an electrolyte, galvanic action occurs resulting in the deterioration of the metal with the lower galvanic number. This electrolyte may be in something as simple as rain water running from one surface to another, or moisture from the air containing enough acid to cause it to act as an electrolyte. Since copper has one of the highest galvanic numbers or nobility of the active metals, it will most likely not be harmed by contact with any of them. It is the lesser number that will show the deteriorating effects of the contact.

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Specifications and Standards for Pipeline Coatings

Pipeline Coatings Application

The entire realm of Pipeline Coatings is so vast it is difficult to know where to begin. Some of the topics with which you may want to become familiar are;

* Fluid Pipelines (Oil, Water, etc)
* Gas Pipelines
* Exterior Coatings
* Interior Coatings (Smoothness is often considered the most important factor)
* Pipeline integrity
* Multi-layer FBE (as opposed to single-coat and dual-layer Fusion Bonded Epoxy-FBE)
* Hot applied coal tar enamels (exterior coating for extremely corrosive soils)
* Soil Corrosion
* Coating debondment

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Rust Bullet Formulas vs Zinc-Based Coating

Rust Bullet Formulas – A Comparative Study – 12.03.07

1. Tnemec Paint is based on Zinc or Zinc-varied chemical forms to act as a scarifying anode protection. This technology is decades old and is effective but is not without its drawbacks. Like all Zinc based coatings, they are not strong enough to withstand abrasive or harsh atmospheres for any length of time. A Zinc based coating will be compromised during normal exposure more rapidly than new technology products. Free Zinc ions are very toxic and harmful to plant and water life, as well as infants and young children when released into the water table. Overexposure to Zinc will cause health problems and there are many and varied ways these unwanted Zinc ions are absorbed. Many Coatings Engineers believe Zinc-based coatings should not be used as a single barrier coating. If a customer is insistent in their demand to use such coatings, the Engineer will generally recommend additional coating products, such as two-part epoxy or a polyurethane coating.

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What is a Surface Coating?

Kinds of Surface Coating

Surface coating is a substance applied to other materials to change the surface properties, such as color, gloss, resistance to wear or chemical attack, or permeability, without changing the bulk properties. Surface coatings include such materials as paints, varnishes, enamels, oils, greases, waxes, concrete, lacquers, powder coatings, metal coatings, and fire-retardant formulations. In general, organic coatings are based on a vehicle, usually a resin, which, after being spread out in a relatively thin film, changes to a solid. This change, called drying, may be due entirely to evaporation (solvent or water), or it may be caused by a chemical reaction, such as oxidation or polymerization. Opaque materials called pigments, dispersed in the vehicle, contribute color, opacity, and increased durability and resistance.

Organic coatings are usually referred to as decorative or protective, depending upon whether the primary reason for their use is to change (or preserve) the appearance or to protect the surface. Often both purposes are involved in a surface coating. More »