Colorite Premium
ColoRite Premium was Developed to Provide a Durable Material for Exterior Applications with Very Good Weatherability and Good Formability.
Standards
- Substrate : ASTM A653/A653M
- Paint Coating : ASTM A755/755M
- * Technical terms and conditions will be applied :
ColoRite Premium is a Paint system comprising hot-dip galvanized steel sheet with a minimum Zinc coating mass of 275 gsm (G90) that is painted on and oven cured with premium polyester in combination with a custom-formulated primer. This produces a normal paint dry film thickness of 25 microns on the top surface (inclusive of Primer) and 10 microns on the bottom (inclusive of primer). ColoRite Premium was developed to provide a durable material for exterior applications with very good weatherability and good formability.
Substrate
Galvanized steel, minimum G90(275 GSM). Grade CS Type A&B, FS Type A & B , SS 33, SS40 , SS50.
Typical Uses
Roofing and Walling, Sandwich Panels, Garage Doors, K-Span, Cold Rooms, etc.
Dimensions: (For normal supply products)
Thickness* (mm) | Width** (mm) |
From 0.45 to 1.20 | From 50 to 1320 |
* For grade SS50, minimum thickness is 0.50 mm
** For width less than 1000 mm are supplied with slit edge For specific dimensions please contact Sales and Marketing Dept.
Pretreatment | Corrosion resistance proprietary conversion coating. |
Primer Coat | Universal Corrosion inhibitive Primer Nominal thickness- 5microns each side |
Finish Coat | Custom formulated system. Nominal thickness-20 microns on the top or weather side. The finish coat is available on all RAL standard colours and other colours may be available on request. |
Backing Coat | Custom formulated Backer-5-7 microns Special backer suitable for foam application can also be provided Back coat can be in the same top coat color and DFT as required |
Gloss (60˚) | Nominal 30 -35% Other gloss levels may be available on request |
Guaranteed Paint Properties
Test | Test Method | Description | Results |
Hardness (Pencil) | ASTM D 3363 | Pencil | F or harder |
Adhesion -T bend | ASTM D 4145 | T-bend | 3T or less (No Pickoff) |
Flexibility | ASTM D 4145 | T-bend | 3T or less (no cracking) |
Adhesion – Reverse impact | ASTM D 2794 | Reverse impact | > 10 joules |
Cross Hatch | ASTM D 3359 | Cross hatch | > No paint removal |
Gloss 60˚ (%) | ASTM D 523 | Gloss | 30-35 |
Color Difference | ASTM D2244 | Light colors | Δ E – ≤1.0 |
Medium Colors | Δ E – ≤ 1.5 | ||
Dark Colors | Δ E – ≤2.0 / Visual match | ||
Metallics | Visual match |
Expected Product Service Performance
Property | Test Method | Description | Results |
Resistance to UV (QUV-A) ASTM G53 | Exposure Hours | 1500 Hrs | |
ASTM D2244 | Color Change | DE Hunterlab – Light color ≤4 Int.Color ≤6 Dark color ≤8 | |
ASTM D4214 | Chalking | ASTM Rating 4 – 2 | |
ASTM D523 | % Gloss Retention | ≥ 40 | |
Natural well washed exposure ASTM G7 | Exposure Hours | 7 Yrs | |
ASTM D2244 | Color Change (Non Vertical) | DE Hunterlab – Light color ≤6 Int.Color ≤9 Dark color ≤12 | |
ASTM D4214 | Chalking | ASTM Rating 4 – 2 | |
ASTM D523 | % Gloss Retention | ≥ 30 | |
Resistance to corrosion (Salt Spray) ASTM B117 | Exposure Hours | 1000 Hrs | |
ASTM D714 & ASTM D1654 | Blister Density, Size & Corrosion Creep | Blister density- Few, Blister size rating ≥8 Undercut from scribe ≤2mm | |
Resistance to humidity at 38± 1°C ASTM D 2247 | Exposure Hours | 1000 Hrs | |
ASTM D714 | Blister Density & Size | Blister density- Few, Blister size rating ≥8 | |
Resistance to Abrasion |
ASTM D 968 | Falling sand test | – |
ASTM D 4060 | Taber abraser 1000g CS10 wheels | – | |
ISO 1518 | Scratch | ≥ 2000gms | |
Resistane to Heat (ECCA T13) | ASTM D2244 | 90°C – 700 hours or 60°C – 1000 Hours | ΔE ≤ 5 , ΔGloss ≤ 7% |
Resistance to Fire | BS 476 Part 7 | Fire rating | Class M1 |