Soft material (CQ) is more suitable for complex architectural design due to its good formability properties whereas hard material (SQ) has limited formability. Thus, CSC Steel Sdn. Bhd. offers variety of steel grades ranging from CQ, SQ and Full Hard as compared to other companies.
Steel Grade Specification Yield Strength(MPa) Tensile Strength(MPa) Reference Photo
Commercial Quality (CQ) SGCC/CGCC 205min* 270 min.
Structural Quality(SQ) SGC340/CGC340 245 min. 340 min.
SGC400/CGC400 295 min. 400 min.
SGC440/CGC440 335 min. 440 min.
Full Hard SGC570/CGC570 560 min.* 570 min.
*: values shown for references only
realcolor® Thermoshield coating system has hydrophilic technology (refer mechanism as shown below) that works by shifting off dirt particles from the coated substrate by preventing dirt particle from sticking, drying and embedding on the surface.
Product Normal PPGI realcolor®Thermoshield
Water contact, Ѳ = 80-90°C

Hydrophilic Surface
Water contact, Ѳ = <20°C
Heat Transfer Mechanism

Generally, solar radiation gives out light and heat to the earth in the form of electromagnetic waves (ultraviolet, visible and infrared). Majority of heat is coming from visible and infrared range. realcolor® Thermoshield steel can reflect and emit most of the energy near infrared range. This product helps to reduce the potential of heat being adsorbed into a structure and keep the shelter environment cool.
GI coating using purely Zinc, which shall provide more protection to steel substrate through the sacrificial loss of Zinc in the vicinity of the exposed substrate (cut edge and scribes) as compared to GL. GL coating is more fragile and cracks easily at bent areas, resulting in steel metal being exposed to atmospheric elements in these areas.

Cut Edge Protection - Galvanic protection will in place until all the Zinc has been consumed

Furthermore, GL is also poor in alkaline resistance compared to GI (please refer to Q9). Therefore, GL is not suitable to be used in agriculture facilities.
PPGI that are produced under CSC STEEL brand realcolor® Primero/Thermoshield/Supreme have been properly designed, manufactured and tested to have outstanding performance when compared to PPGL under the same environmental conditions. 2000hrs of salt spray test (SST) simulating the corrosion resistances of realcolor® Primero versus PPGL panel has been made and results are presented as below.
Life span of metal roofing can be extended by cleaning the paint film surface at least annually with mild detergent or clean neutral water. Paint film surface must not be cleaned with abrasive or chemical cleaners.
There are a number of simple steps that can greatly reduce or eliminate the formation of white rust. These are:
  • Keep the packed work dry
  • Pack the items to permit air circulation between the surfaces
  • Stack the packed items to allow water to drain out
  • Treat the surface with proprietary water repellent or barrier coatings to prevent moisture contact with galvanized surface
Touch up paint can be used to repair or cover up minor scratches. For further information, please contact technical person from CSC Steel Sdn. Bhd.