Everite Building Products has added a new in-house finished paint and surface coating system to its S7 Bigsix roofing sheet plant at its Kliprivier facility south of Johannesburg. The new equipment was brought into operation earlier this year and the new colour surface coated Nutec Bigsix roof sheeting has been well received in the market.
The German colour surface coating system, internationally acknowledged as among the best in the world specifically for fibre-cement, provides a high-quality finish. The main characteristic of this treatment is the long-lasting, uniform, smooth, matt surface that it delivers – a sought-after finish for any roof.
Significant features and benefits of the coating system include:
- Cost savings: factory coating costs significantly less than on-site application;
- Quality: factory coating eliminates lap marks, streaking and overspray;
- No weather delays: Potential delays in on-site painting due to bad weather are eliminated;
- Paint performance: Coating adhesion is significantly improved compared to on-site application;
- Environmentally friendly: Controlled factory application limits environmental impact compared to on-site application.
Over and above the aesthetic appeal the surface coating provides to Nutec Bigsix roof sheeting, it is also highly durable and weather resistant. It can withstand the harshest of African climate conditions – from freezing temperatures to extreme heat, high UV levels and prolonged exposure to wet conditions.
Nutec Bigsix roofing supplied in its natural colour is still a popular choice among specifiers, developers and end-users. However, the new colour surface coated product offers an attractive alternative at a minimal premium.
The new surface coating plant has the capacity to process about 1 000 sheets per shift. The entire production operation provides a seamless throughput of Bigsix roofing sheets – from manufacture in their natural grey colour ready for use, or to the new surface coating plant – all under one roof.
The two-coat surface coating process starts with the application of an acrylic water-based primer to the roof sheets which are then conveyor-fed through a first stage heating and drying process before being sent through a continuous flow of paint. The sheets then travel through a second oven where they are heat-sealed.