COROGARD
ANTI CORROSION COATING SYSTEM
Specifications
DESCRIPTION:
Corogard is a two component Polyurethane based protective coating system with a unique organometallic ingredient. It is specially designed to protect a wide range of substrates from grease, acids, alkalis, coolants and other chemicals.
Corogard's excellent adhesion and unmatched scratch and corrosion resistance makes it ideally suited for protecting machinery and equipment in chemical, plastic, textile, cement and marine industries. It also protects steel reinforcement rods, metal pipes and tubes and aluminium extrusions.
Environmental pollution due to nitrates and sulphates from vehicular emission has a highly corrosive effect on steel and concrete structures. This is further compounded by sodium chloride in the air especially in coastal regions. Corogard can effectively guard against such factors and prevent premature collapse of RCC structures such as buildings, flyovers, bridges, water tanks, etc.
SALIENT FEATURES:
Outstanding Corrosion Resistance
It is resistant to various substances as illustrated in Table 1.
Excellent Adhesion
Corogard strongly bonds to steel, aluminium, copper, brass, concrete, FRP and wood and will not peel off from the substrate even in severe environment.
Excellent Scratch and Abrasion Resistance
It withstands a high level of physical wear and tear as shown in Table 2.
Good Elasticity
Corogard is very elastic and withstands expansion and contraction of the substrate without cracking.
Excellent Ultraviolet Resistance
Corogard easily withstands ultraviolet rays when exposed to sunlight.
Excellent Antifungal Properties
Corogard is highly resistant to fungal and microbial attack.
Good Temperature Resistance
Corogard can withstand variations in temperature from - 25°C to 130°C.
Good Aesthetics
It comes in a wide range of colours and with a choice of glossy or matt finish. It can also be provided with an aluminized (silver) or Coal Tar (black) topcoat.
USES:
Chemical & Fertilizer Plants
Protective coatings for vessels, tanks, pumps, pipelines and other process equipment, prilling towers and drainage lines.
Refineries
Storage tanks, columns, condensers, vessels, pipelines, tankers, etc.
Thermal Power Plants, Concrete Buildings & Bridges
Protective coatings for reinforcement rods, concrete surfaces and cement plastered facades.
Marine Industry
Off shore oil drilling rigs, marine installations, ships and boats.
Machinery Protection
Plastics, Rubber, Textile and Printing Machinery, heavy machinery, cranes, earth moving equipment, cement mixers, tractors, etc.
Paper & Sugar Industry
Concrete tanks used for storage of paper pulp, molasses tanks and steel structures.
Electroplating Plants
Metal Furniture & Equipment
T.V & Microwave Transmission Towers
Under - Carriages of Cars and Railway Coaches
Concrete Industrial Floors
Wooden Furniture and Articles
Waterproof and scratch resistant decorative coatings.
Brass, Bronze And Copper Articles
Transparent protective coatings to preserve aesthetics.
Aluminium Window and Door Sections
Ideal substitute for power coating.
APPLICATIONS:
APPLICATION ON METALS
SURFACE PREPARATION: The surface is cleaned of oil, dirt and grease by means of solvents or emulsifiers. Rust and scales are removed by mechanical means like scrapping, wire brushing and rubbing with emery paper. Sand or grit blasting is used wherever possible to obtain a completely clean surface. Chemical methods using phosphating chemicals, rust convertors, etc. may also be used. Immediately after cleaning the surface a primer coat is applied.
PRIMER COAT: The primer coat which protects the substrate is available in a choice of anticorrosive pigments such as zinc phosphate, zinc chromate and red oxide. For highly corrosive environment a zinc rich primer is recommended. Corogard 10 and Corogard 40 are mixed thoroughly and applied evenly by brush or spray. Details of the primer coat are given in Table 3.
TOPCOAT: The primer coat is allowed to dry for 2-3 hours. Two topcoats are then applied over it keeping a gap of 2-3 hours between the coats. Details of the matt, glossy or coal tar modified (for underground structures) topcoat.
This contains information based on results gained from tests and experiences and are hereby given in good faith. The recommendations and suggestions are without any obligation as the conditions of use and workmanship are beyond our control. We assure the quality of our product is good.
