Epoxy MIO Intermediate Coat XH4022L

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Product Description

A high-build epoxy intermediate coat containing micaceous iron oxide pigment. In severely corrosive atmospheric environments, it can be used as an intermediate coat on new construction or maintenance work to improve the barrier protection of various anticorrosive systems.

Product Characteristics

• Good sag resistance, allowing a high dry film thickness in one coat
• Good barrier protection
• The film has good flexibility and impact resistance
• Fast curing and recoating
• Good intercoat adhesion with both anti-corrosive primers and topcoats

Basic physical and chemical data

Application parameters

Application Methods

*Use a slow thinner in hot weather

Theoretical Spreading Rate

Application data (typical dry film thickness 100 µm)

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

Surface Preparation

All surfaces to be coated must be clean, dry and free of contaminants. Before coating, all surfaces should be assessed and prepared to ISO 8504:2000. When used as a primer, blast-clean the substrate to Sa 2½ with a surface roughness of 40–75 µm. Before derusting, remove oil/grease and weld spatter and smooth welds and sharp edges. Where a coated film is mechanically damaged or shows local rusting, prepare by local blast cleaning to Sa 2½ or power tool cleaning to St 3 before local repair. When overcoating old coatings, remove chalking, zinc salts, grease and other contaminants by an appropriate method. When overcoating inorganic zinc silicate primers or thermally sprayed metal, use an approved tie coat or transition coat.

Precautions

1. During application, ensure ventilation and exhaust, keep away from ignition sources, and wear protective equipment such as masks and gloves; maintain adequate ventilation during curing. 2. When mixing, first stir the base thoroughly, then add the hardener in the specified ratio and mix evenly; adjust the thinner quantity according to application needs and temperature, and mix thoroughly with the required induction. 3. When overcoating inorganic zinc silicate coatings, seal with a transition coat first; apply this product only after the transition coat is hard-dry, otherwise the sealing of pinholes will be less effective. 4. Excessive thinning reduces sag resistance and slows curing. 5. Excessive film thickness adversely affects drying/curing, recoating and handling time. For better coating performance, when the film thickness exceeds 200 µm, apply in multiple coats to improve film density. Avoid a single over-thick coat on edges, corners and welds; if over-thick, extend the recoat interval for subsequent coats to allow solvent release, otherwise the coating may crack in service. 6. If the coating chalks after long-term exposure, wash with high-pressure water or abrade the surface before applying subsequent coats. 7. Roller application cannot achieve high film thickness and a continuous film in one pass; multiple coats are required. 8. During application and curing, the substrate temperature must be above 5 °C and at least 3 °C above the dew point, and relative humidity must not exceed 85%. 9. Cutting structures coated with this product produces fumes and dust; take appropriate protection. 10. During work breaks, do not leave paint in the hose, spray gun or spray equipment. Flush all equipment thoroughly with thinner. If the break is too long, mix a fresh batch of paint for application. 11. Clean all equipment with thinner immediately after use. Flushing spray equipment regularly during work is good practice. Cleaning frequency depends on spray volume, temperature and spraying time including interruptions. 12. Dispose of leftover paint and empty cans in accordance with 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 paint and recommended thinners, refer to the safety data sheet and related material safety data. This is a solvent-borne coating; avoid inhaling spray mist and solvent vapour, minimise skin and eye exposure, and avoid contact with wet paint. 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. Welding or flame cutting on metal coated with this product produces dust and fumes; 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 in this datasheet is based on laboratory test results which the company believes to be accurate, and is provided for application guidance only. T&H provides advice and recommendations regarding its products, whether in technical documents, in response to specific enquiries or otherwise, based on information believed to be reliable. The products and information are intended for users with the necessary knowledge and industrial experience; the end customer is responsible for determining their suitability for the intended use. T&H cannot control the quality and condition of the substrate or the various factors affecting product use. Accordingly, T&H accepts no liability for any loss, injury or damage arising from the use of its products or from reliance on this datasheet (unless otherwise agreed in writing). The data in this datasheet may be revised as necessary based on practical experience and continuous 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.