TOWER RENOVATION: PRIMER & PAINT
2 COATS PRIMER : PAINTING : CUTTING IN
All work shall be carried out under the supervision of an experienced supervisor.
All coatings shall be evenly applied to form a smooth, continuous, unbroken coating free from sags, runs and other defects. Care shall be taken to ensure adequate coating of all bolt holes, kidney ports, edges and other areas normally prone to corrosion attack.
Where appropriate these areas shall be stripe coated.
Steel surfaces, which are to rest on concrete or other floors, and any other surfaces inaccessible after erection shall receive the full specified coating system prior to erection. Additional stripe coating of final coat paint shall be applied to the base edges that rest on the concrete plinth before lowering the unit into final position. SCA shall touch-up paintwork damaged during transport or erection.
When site repainting is necessary, labels and all other areas not to be painted shall be carefully masked. SCA shall remove any over spray, which occurs despite this masking. Spot repairs shall be carried out such that the patch painting extends at least 25 mm beyond the damaged areas.
Spot repairs shall reinstate each of the previous coats and shall commence directly after surface preparation. No cleaning or coating applications shall take place when site conditions are likely to adversely affect these operations.SCA shall be responsible for providing all protective equipment necessary to prevent contamination of the coatings and to minimize delays due to such site conditions.
All newly primed steelwork, prior to erection, shall be stored clear of the ground on trestles or other suitable structures. The steelwork shall be placed in such a manner as to ensure adequate drainage of rainwater and condensation. The storage of galvanized components shall comply with SABS ISO 1461.
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​The colour of each coat shall be different from the previous coat. The type of paint used for stripe coating shall be the same as the f irst coat but of different colour. The colour of the Polyurethane topcoat shall be International orange and white for all new, refurbished and completely repainted towers.