NavalGuard 4019 Phenolic Epoxy Coating

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Product Description

A two-component, high-build modified phenolic epoxy coating with good anticorrosive performance and broad chemical resistance. Used as a lining for tanks and pipelines in refineries, petrochemical plants and similar sites. May carry sour crude oil, some petroleum intermediates and products, and oily waste water.

Product Characteristics

• Good application properties
• Good corrosion and chemical resistance
• Good recoatability
• Wide compatibility

Basic physical and chemical data

Application parameters

Application Methods

*In high-temperature seasons, use a slow-drying thinner.

Theoretical Spreading Rate

Application data (typical dry film thickness 80 µm)

*The maximum recoat interval depends on the exposure environment and the end use of the coating.

Surface Preparation

All surfaces to be coated shall be clean, dry and free from contamination. Before application, all surfaces shall be assessed and prepared in accordance with ISO 8504:2000. Blast clean to Sa2½ with a surface profile of 40–75 µm. Before derusting, remove all oil, grease and weld spatter, and grind welds and sharp edges. Where the coating film has suffered mechanical damage with localised rusting, spot blast to Sa2½ or power-tool clean to St3 before local repair. If the product is to be applied over an approved old primer film, chalking or zinc salts on the old coating shall be removed thoroughly before applying the product.

Precautions

1. During application, ensure adequate ventilation and exhaust, keep away from sources of ignition, and wear protective equipment such as masks and gloves; maintain adequate ventilation also during curing. 2. Before mixing the two components, stir the base component thoroughly with a power tool, then add the hardener and mix uniformly; adjust the amount of thinner according to application needs and temperature changes, mix thoroughly, and induce for 10–15 min before application. 3. Do not use paint that has exceeded its pot life, otherwise the chemical resistance of the coating will be seriously affected. 4. During application and curing, the substrate temperature must be above 10 °C and at least 3 °C above the dew point, and the relative humidity must not exceed 85%. Temperature and relative humidity shall be measured on the substrate close to the work point. The paint temperature during application shall not be below 10 °C. 5. The recommended film thickness per coat of this product shall not exceed 120 µm, otherwise solvent retention in the coating will affect chemical resistance; applying multiple coats helps reduce coating defects and improves corrosion protection. At room temperature, the film must cure for 7–10 days before being put into service; at lower temperatures the curing time must be extended (14–21 days) or heating used to increase the degree of cure. Do not use this product when the temperature is below 10 °C. 6. If this coating is to be applied over an inorganic zinc silicate primer, an MEK test must be carried out on the coating to ensure the primer is fully cured. 7. Cutting structures coated with this coating produces fumes and dust; appropriate protection shall be used. 8. When work is interrupted, do not leave paint in the hose, spray gun or spray equipment. Flush all equipment thoroughly with thinner. If the interruption is too long, it is recommended to mix a fresh batch of paint for application. 9. All equipment shall be cleaned with thinner immediately after use. Flushing the spray equipment periodically during daily work is good practice. The cleaning frequency depends on spray volume, temperature, spraying time and interruptions. 10. Leftover paint and empty cans shall be disposed of according to local regulations.

Packaging

Storage

Keep sealed in a ventilated, cool, dry place away from sources of ignition. Minimum 12 months.

Safety Precautions

1. For the coating and its recommended thinners, see the safety sheets and the safety data of the relevant materials. This is a solvent-borne coating; avoid inhaling spray mist and solvent vapours, and avoid exposing skin and eyes and contact with uncured paint as far as possible. 2. All work related to the application and use of this product must comply with the relevant national health, safety and environmental standards and regulations. 3. If welding or flame cutting is required on metal coated with this product, dust and fumes will be generated; use appropriate personal protective equipment and adequate local ventilation. 4. If in doubt about the suitability of this product, consult the company.

Scope of liability

The information provided in this product data sheet is based on laboratory test results that we consider accurate, and is provided for application guidance only. All recommendations and advice given by T&H on the use of T&H products, whether in technical documents, special consultation or otherwise, are based on information we consider most reliable. Our products and the information provided are intended for users with the necessary knowledge and industrial experience, and it is for these end users to determine whether the products are suitable for their use. T&H cannot control the quality and condition of the substrate, nor the various factors affecting the use of the product. Therefore, T&H accepts no liability for any loss, injury or damage arising from the use of our products or from reliance on this product data sheet (unless otherwise agreed in writing). Data in this product data sheet may be revised as necessary based on practical experience and continued product development.

Information is subject to the manufacturer's latest version; the manufacturer's latest TDS prevails.
The technical parameters on this page are taken from the product's original manufacturer technical datasheet, the copyright of which belongs to the manufacturer. If a rights holder considers the presentation inappropriate, contact us for verification and handling.