Nitocote EP410 - Technical Details, Specifications, and Features

Product Overview

Nitocote EP410 is a highly chemical resistant, solvent-free, two-component epoxy coating system designed for protective applications on concrete and steel substrates in aggressive chemical environments. The product is manufactured and supplied by Fosroc International Limited and is particularly suitable for industrial applications such as sewage works and chemical processing plants.

Key Features and Advantages

Nitocote EP410 offers several significant performance characteristics:

• Excellent Chemical Resistance: Provides superior protection against a wide range of industrial chemicals, acids, alkalis, and corrosive substances
• Excellent Adhesion: Achieves strong bond strength to both saturated surface dry (SSD) and dry concrete, as well as steel substrates
• Excellent Abrasion Resistance: Protects surfaces from mechanical wear and impact damage
• Ease of Application: Can be easily applied by brush, roller, or suitable airless spray equipment
• Solvent-Free Formulation: 100% solids content with only 5 g/litre VOC content (ASTM D3960), making it environmentally friendly and suitable for use in confined areas

Technical Specifications

Physical Properties

Application Parameters

Nitocote EP410 is designed to be applied in 2 coats to achieve a minimum total dry film thickness of 300 microns. The following application specifications apply:

Chemical Resistance Profile

Nitocote EP410 demonstrates excellent chemical resistance to a comprehensive range of industrial substances:

• Acids: Phosphoric acid (25%), Hydrochloric acid (25%), Nitric acid (25%), Sulphuric acid (25%), Tartaric acid (15%)
• Alkalis: Sodium Hydroxide (25%)
• Weak Acids: Saturated Citric acid
• Petroleum Products: Petrol, Kerosene
• Salt Solutions: Saturated salt

For specific applications involving other chemicals or operating temperatures greater than 50°C, consultation with Fosroc is recommended.

Product Supply and Packaging

Nitocote EP410 is supplied in 8 litre two-component packs with the following components:

Color Options

Nitocote EP410 is available in two color variants matching Australian Standards Grade 2:

• Grey: N35 Light Grey (AS Grade 2 match)
• White: N11 White (AS Grade 2 match)

Note: Color matching to Australian Standards reference samples is undertaken with care, though exact matching cannot be guaranteed.

Application Instructions Overview

Surface Preparation Requirements

Concrete Surfaces: All surfaces must be dry or surface saturated dry, smooth, sound, and free from debris. Surfaces must be thoroughly cleaned of contamination (oil, grease, dust, organic growth) and must be fully cured with no traces of shuttering release oils or curing compounds. All surfaces should be grit-blasted to remove foreign matter and open blow holes.

Steel Surfaces: All surfaces must be grit-blasted to meet AS1627.4 Class 2.5 requirements. Coating should be applied immediately after cleaning before rust or scale reformation.

Mixing Procedure

The base container contents should be stirred thoroughly to disperse settlement. The entire contents of the hardener can should be added to the base and mixed thoroughly until uniform color and consistency are obtained. Mechanical mixing using a suitable mixer on a heavy-duty, slow-speed electric drill for 3 to 5 minutes is recommended.

Important Application Considerations

Once mixed, the product should be immediately poured into flat, open paint trays to maximize pot life. Holding the product in the original mixing can will cause an exothermic reaction that significantly reduces usable pot life.

If coating is exposed to moisture during cure (condensation, dew), it must be mechanically roughened prior to overcoating to prevent delamination.

Storage and Shelf Life

Nitocote EP410 should be kept in a dry store in original, unopened containers between 5°C and 30°C. Storage at high temperatures may reduce shelf life.

Limitations and Important Notes

• Not Color Fast: Nitocote EP410 is designed as an industrial coating and may exhibit yellowing over time due to UV light and heat exposure. This color drift does not compromise protective performance or chemical resistance.
• Temperature Constraints: Application should not be undertaken if temperature is below 10°C or is 10°C and falling, nor when relative humidity exceeds 90%
• Existing Coatings: Should not be applied over existing coatings
• Moisture Protection: Coating requires protection from flowing water and heavy rain during the initial 6-8 hour cure period

Cleaning and Removal

Uncured Nitocote EP410 should be removed from tools and equipment immediately after use with Fosroc Solvent 10. Cured material can only be removed mechanically.

References

• [1] Fosroc_Nitocote_EP410_TDS.pdf
• [2] Fosroc_Nitocote_EP405_TDS.pdf
• [3] Fosroc_Nitocote_EP500_TDS.pdf
• [7] Fosroc_Nitomortar_903_TDS.pdf