Fosroc Nitozinc Primer Base

Nitozinc ® PrimerTwo component epoxy zincrich primer Uses Nitozinc Primer is recommended for priming exposed steel reinforcement for use with Fosroc concrete repair mortars. The product actively resists corrosion within the confines of the repair location and avoids the generation of incipient anodes in immediately adjacent locations. Nitozinc Primer is compatible with all Renderoc mortars and fluid micro concretes. Advantages ?? Anti corrosive - Active 'Zinc-rich' system combats corrosion by electro chemical means. ?? Two component product - easy to mix and use. ?? Timesaving - Touch dry after 30 to 45 mins. ?? Excellent adhesion - Exhibits excellent bond strength in cementitious repairs. Description Nitozinc Primer is supplied as a two component system based on metallic zinc and epoxy resin which on mixing gives a grey coloured liquid. Technical support Fosroc offers a comprehensive range of high performance, high quality concrete repair and construction products. In addition, Fosroc offers technical support service to specifiers, end-users and contractors, as well as on-site technical assistance in locations all over the country. Design Criteria One or two coats of Nitozinc Primer are generally required, dependent largely on the nature and profile of the substrate. Nitozinc Primer is recoatable generally between 30 minutes and one hour after the application of first coat. Application of top coat may also proceed at this time. At elevated temperatures, the recoatable and overlay times will be reduced. The minimum application temperature for Nitozinc Primer is 100 C. The local Fosroc office may be consulted for further information. Properties Specific gravity 1.75 Recommended thickness per coat 40 microns (DFT) Application thickness 100 microns (wet) per coat Drying times @ 20 0 C @ 35 0 C Touch dry 45 mins 15 mins Fully dry/Recoatable 45 minutes to 1 hour. Surface drying time @270 C 20 to 40 mins. Note : At temperatures below 20 0 C, the drying times will be slower. Conversely, at temperatures above 350 C, the drying times will be faster. Specification clauses Steel reinforcement primer Performance specification The steel reinforcement primer shall be an epoxy, zinc rich, two component, zinc rich liquid packed and supplied ready to use. An unbroken 40 microns thick coating shall be capable of providing'active' galvanic protection and avoiding the generation of incipient anodes in the immediately adjacent locations. It shall be of suitable viscosity to enable the coating to penetrate into imperfections and pits within the surface of the structural steel. The formulation of the primer shall be such that drying occurs to allow the application of the repair mortar after 45 minutes at 350C or after one hour at 200 C. It shall be fully compatible with the reinstatement methods adopted. Supplier specification The steel reinforcement primer shall be Nitozinc Primer, manufactured by Fosroc and used in accordance with the manufacturer's datasheet. Nitozinc Primer is fully compatible with Fosroc's reinstatement techniques.