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Colorite SMP
Colorite Silicon Modified Polyester (SMP) is a premium pre-painted galvanized steel developed for Residential, Agricultural and commercial Construction Industrial segments to provide durability, stain resistance, abrasion resistance and metal marking.
Anti-Weathering Limited Warranty: 12 Years (UNICOIL Technical terms and conditions applicable).
Standards
Substrate
Galvanized steel, G90 (275gsm)
Standards & Grades
| Standard | Description | Sub-Strate Standard | Grades |
| SASO ASTM A755/ A755M | Standard Specification for Steel Sheet, Metallic Coated by the Hot-Dip Process and Pre-painted by the Coil-Coating Process for Exterior Exposed Building Products | SASO ASTM A653/A653M | CS-Type A, B, C
FS Type A, B SS33, SS37, SS40, SS50, SS55, SS60 & SS80 |
| ASTM A755/ A755M | Standard Specification for Steel Sheet, Metallic Coated by the Hot-Dip Process and Pre-painted by the Coil-Coating Process for Exterior Exposed Building Products | ASTM A653/A653M, ASTM A792/A792M
Aluminum Flat coils |
|
| EN10169 | Continuously organic coated (coil coated) steel flat products — Technical delivery conditions | EN 10346 | DX51D. DX52D
S220GD, S250GD, S280GD, S320GD, S350GD, S390GD, S420GD & S550GD |
| JIS G3312 | Pre-Painted Hot Dip Zinc Coated Steel Sheet and Strip | JIS G3302 | SGCC, SGCD1
SGC340, SGC400, SGC440 & SGC570 |
| AS 2728 | Prefinished/pre-painted sheet metal products for interior/exterior building
applications—Performance requirements |
AS 1397 | S250, S300, S350, S450, S550 |
Typical Uses
Roofing and walling, Hot water system wrappers, air conditioner, wrappers and garden sheds etc.
Dimensions: (For normal supply products)
| Thickness* (mm) (TCT-P) | Width** (mm) | Zinc coating (GSM) |
| From 0.42 to 1.20 | 700 to 1300 | 275 (G90) |
*For grade SS50, minimum thickness is 0.46 mm
** For width less than 700 mm are supplied with slit edge
For specific dimensions please contact Sales and Marketing Dept.
TCT-P – Total Coated Thickness with Paint Film (Steel thickness + Zinc coating thickness + Paint thickness).
| Pretreatment | Corrosion resistance proprietary conversion coating. |
| Primer Coat | Universal Corrosion inhibitive Primer Nominal thickness 5µm each side |
| Finish Coat | Custom formulated system with a blend of Silicone and Polyester resins Nominal thickness 20 µm on the top or weather side. The finish coat is available on all RAL standard Color sand other colors may be available on request. |
| Backing Coat | Foam compatible epoxy coat or Polyester based custom formulated off white Nominal thickness: 5-7 µm. Back coat can be in the same topcoat color and DFT as required. |
| Gloss (60˚) | Nominal 30±5% Other gloss levels may be available on request |
Guaranteed Paint Properties
| Test | Test Method | Description | Results |
| Hardness (Pencil) | ASTM D 3363 | Pencil | H 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 | > 8 joules |
| Cross Hatch | ASTM D 3359 | Cross hatch | > No paint removal |
| Gloss 60˚ (%) | ASTM D 523 | Gloss | 30±5% |
| Color Difference | ASTM D2244 | Light colors | Δ E :≤ 1.5 |
| 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 | 2000 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 | ≥ 50 | |
| Natural well washed exposure ASTM G7 | Exposure Years | 10 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 | ≥ 50 | |
| 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 & Corrosion Creep | Blister density- Few, Blister size rating ≥8 Undercut from scribe ≤2mm | |
| Resistance to Abrasion | ISO 1518 | Scratch | ≥ 3000gms |
| Resistane to Heat (EN13523-30) | ASTM D2244 | 90°C – 700 hours or 60°C – 1000 Hours | ΔE ≤ 2.5 , ΔGloss ≤ 5% |
| Resistance to Fire | BS 476 Part 7 | Fire rating | Class M0 |
