Water Borne Intumescent Coating Interchar 1260

Interchar 1260 is a CE-marked product with European Technical Assessment ETA-14/0262

INTENDED USES: To provide up to 60 minutes cellulosic fire protection over a wide range of I section beams and columns and hollow sections in interior environments. Will also provide up to 90 minutes fire protection to BS476, Parts 20-21.

PRACTICAL INFORMATION FOR INTERCHAR 1260

• Colour: White
• Gloss Level: Matt
• Volume Solids: 73% ± 2% (measured according to ISO 3233 and BCF Guidance Method)
• Typical Thickness: 200-700 microns (8-28 mils) dry equivalent to 274-959 microns (11-38.4 mils) wet
• Theoretical Coverage: 1.83 m²/litre at 400 microns d.f.t and stated volume solids 73 sq.ft/US gallon at 16 mils d.f.t and stated volume solids
• Practical Coverage: Allow appropriate loss factors
• Method of Application: Airless Spray, Brush

SURFACE PREPARATION

All surfaces to be coated should be clean, dry and free from contamination. Prior to paint application, all steel surfaces should be assessed and treated in accordance with ISO 8504: 2000. Oil or grease should be removed in accordance with SSPC-SP1 Solvent Cleaning.

Primed Steelwork

Interchar 1260 should always be applied over a recommended anti-corrosive coating scheme. The primer surface should be dry and free from all contamination and Interchar 1260 must be applied within the overcoating intervals specified (consult the Interchar 1260 Application Guidelines). Areas of breakdown, damage etc., should be prepared to the specified standard (e.g. Sa2½ (ISO 8501-1: 2007) or SSPC-SP6, Abrasive Blasting, or SSPC-SP11, Power Tool Cleaning) and a full coat of primer applied prior to overcoating with Interchar 1260.

Metallic Zinc Primed Surfaces

Interchar 1260 can be applied over approved epoxy metallic zinc primers, provided that these have been overcoated with an approved tie coat. Ensure that the primed surface is clean, dry and free from contamination prior to application of the Interchar 1260. Recommended tie coats are Intergard 269 or Intergard 276.

PRODUCT CHARACTERISTICS

The detailed Interchar 1260 Application Guidelines should be consulted prior to use.

Interchar 1260 must be protected from freezing at all times during storage and transport.

For optimum application and drying characteristics, the air and substrate temperature should be greater than 10ºC (50ºF) and relative humidity less than 85%. Good air flow and ventilation should be maintained to improve drying and recoat properties and speed up the application. Application at temperatures below 10ºC (50ºF) will retard drying and extend overcoatings intervals, as will higher humidities.

Discard frozen Interchar 1260 in accordance with local disposal regulations. Do not thaw frozen material and apply.

Surface temperature must always be a minimum of 3°C (5°F) above dew point.

In line with good painting practice, application should not take place in conditions which are deteriorating, e.g. the temperature is falling or there is a risk of condensation forming.

Maximum film build in one coat is best attained by airless spray. When applying by methods other than airless spray, the required film build is unlikely to be achieved.

Care must be taken not to over-apply on areas such as internal angles, corners, edges, etc.

The finished appearance of Interchar 1260 is dependent upon application method. For visible areas spray application is recommended. Higher decorative finishes may require additional preparation before application of topcoats; please see Application Guidelines for further information. Topcoats are not necessary for in environments classified as ISO 12944-2 C1 and may be specified purely for decorative reasons.

Interchar 1260 (whether sealed or not) should be protected from pooling or running water.

Interchar 1260 is intended for application to internal steelwork in unexposed conditions. Consult

International Paint for the appropriate primer and topcoat systems for the specified interior environment.

Interchar 1260 is not designed for frequent water immersion/soaking.

Note: VOC values are typical and are provided for guidance purpose only. These may be subject to variation depending on factors such as differences in colour and normal manufacturing tolerances.