Nullifire SC802 25KG

Product Details SC802 Intumescent Basecoat is a water-based, white, thin film intumescent coating for the protection of internal structural steelwork. SC802 can provide up to 60 minutes fire resistance. It can be applied to a smooth matt finish. A compatible top-seal can be applied if a decorative finish is required.SC802 can be applied to a smooth matt finish. A compatible top-seal can be applied if a decorative finish is required. Features • Nullifire SC802 is recommended for application and use on dry protected structural steel only. • If the basecoat is allowed to get wet, it is likely to be damaged – blistering and wrinkling may occur. • SC802 should only be applied when the air and steel temperatures are above 5°C. Relative humidity should be below 80% for successful application. Steel surface temperature should be a minimum of 3°C above the dew point. • Ensure the steel is dry and free from contact with rain or condensation during the application and drying of SC802. Usuage Areas SC802 should be applied onto a clean, undamaged and dry primed surface. Nullifire recommended primers are listed on the ETA and Nullifire’s website. Nullifire have carried out compatibility testing on a wide range of primers and topcoats and can be contacted on 44 (0)1322 551010 for confirmation of compatibility with SC802. The primer must be applied in accordance with the manufacturer’s instructions. Application AIRLESS SPRAYING SC802 may be applied up to a maximum wet film thickness (WFT) of 1.0 mm in a single spray coat comprising of several quick passes. Achieving maximum loadings will depend on site conditions. The vast majority of 60 minute loadings can be applied in one coat. BRUSH/ROLLER APPLICATION For brush application use a “laying on” technique to avoid heavy brush marking. Maximum wet film per coat when applied using a brush or roller is 0.6mm. A short piled roller will produce a light textured finish. During application, measure the wet film thickness frequently with the WFT gauge provided to ensure the correct thickness is being applied. To use the gauge, insert the teeth into the wet basecoat. The last tooth to be coated indicates the wet film thickness achieved. In the event of over or under applications, adjustments to the loading rates of subsequent coats will be required. Technical Documents Nullifire SC802 Datasheet