Iron or steel vessel suffer from rust and corrosion both inside and outside as a result of exposure to water and air. On the vessels bottom, shells and seaweeds stick to the it and increase as time elapses, showing significant amount of marine growth, called fouling. This causes negative effect on the vessels’ speed. That’s, why we have to clean and maintain the vessel. We use preventive measures against rust (corrosion) and against fouling. After scaling the surface and cleaning it, paints should apply to the surface for protection. MAIN COMPONENTS OF PAINTS SHIP Driers Pigments Solvents Binders 1. Fill in the blanks below with the words from the box above. a. ______________ It’s the basic component giving the colour of paint and the protective quality. It is in the form of fine powder or paste, such as white lead – red lead – zinc oxide – zinc chromate b. ______________ Gives the paint sticky quality and holds the pigment ...
Seabra Idiomas blog contains many activities to assess or practice grammar and listening. An answer key with explanations is also included in the end of each lesson. New activities are posted regularly. Teaching english with audio lessons is inspiring and highly motivating.