Skylark prefab Infra is one of the pioneers in the field of Prefabricated & Civil Housing solution like- staff accommodation, worker accommodation, labour hutment, security room, containers, bunk house, industrial shed,prefabricated residential & commercial building, screeding work, interior work, etc. We strive to deliver turkey solution including all the requirement from plinth completion to the final finished including electrical work, sanitary work, furniture work etc.
| CORE : POLYURETHENE FORM (PUF) | |
|---|---|
| ITEM | OPTIONS |
| Panel length | Any length from 1500mm to 15000mm |
| Panel Width | 1160 MM |
| Panel Thickness | 42 mm – 150mm |
| Metal facial*on either side of the panel | Pre-Coated Galvanized Steel - (PCGI) |
| Standard Colour for PCGI | RAL 9002 |
| Make of PCGI Sheet | ISPAT / NATIONAL / BHUSHAN / UTTAM |
| Locking System | Tounge & Groove system |
| FACIA SHEET SPECIFICATIONS PRECOATED GI (PCGI) | |||
|---|---|---|---|
| PRECOATED GI (PCGI) | |||
| SI No. | ITEM | VALUE | APPLICATION SPECIFICATIONS |
| 1 | Make | ISPAT / NATIONAL / BHUSHAN / EQV |
IS - 277 / IS - 513 |
| 2 | Thickness of Sheet | 0.5 MM | IS - 513 - 01 D |
| 3 | Substrate | Cold Rolled Steel | IS - 513 - 01 D |
| 4 | Coatings | 275 GSM | IS - 277 |
| A) Galvanizing | 5 - 7 microns | ||
| B) Epoxy Primer | 5 -7 microns | ||
| C) Alkyd Backer | 8 - 10 microns | ||
| D) Polyster Top Coat | 20 microns | ||
| E) Total Nominal Coating |
Max : 25 microns | ||
| 5 | Adhesion (Cross Hatch) |
100% | BS : 39900 |
| 6 | Specular Gloss (60º) | 30 -85 % | ECCA T – 2 ASTM D - 523 |
| 7 | Pencil Hardness | 2 H | ECCA - T - 4 ASTM D - 3363 |
| 8 | Scratch Resistance | 1500 g | BS 3900 / E – 2 IS - 101 |
| 9 | Reverse Impact | 5 mm per mm | BS 3900 ECCA TS |
| 10 | Bend Test | 2 T | BS 3900/E1 ECCA T - 7 |
| 11 | Ericson Test | 76 mm | IS 10175 (82) |
| 12 | Corrosion Resistance | ||
| A) Salt Spray Test | 700hrs | ECCAT-8 | |
| ASTM - B - 117 773 | |||
| B) Humidity | 1000 hrs | ECCA T - 9 | |
| ASTM - D - 714 | |||
| BS 3900-F2 | |||
| C ) QUV Weather Meter |
1000 hrs | ECCA T 10 | |
| ASTM - G - 53 84 | |||
| 13 | Temperature Resistance | 150º C | |
| 14 | Fire Resistance | ||
| A) Ignitability | Non Burning | BS - 476 | |
| B ) Fire Rating | Class - 1 | BS - 476 | |
| 15 | Resistance Chemicals | ||
| A) Detergent Resistance |
Pass | ASTM D 2248 | |
| B ) Acid Resistance | 5% HCL : 24 hrs / Rt | ||
| 5% HzSCa4 : 24 hrs. Irt | |||
| 10% Citric Acid : 72 hrs | |||
| 10% Acetic Acid : 72 hrs | |||
| C) Alkali Resistance | 5% NaoH Solution | ||
| 5% NaoH Solution | |||
| -24 hrs / Rt | |||
| D) Solvent Resistance | MEK-50 | ||
| (double rubs) | Xylene - 100 | ||
| Ethyl Alcohol - 100 | |||
| E) Grease Resistance | 50% Vegetable Oil | ||
| 150 hrs | |||
| 50% Oleic Acid | |||
| F) Stain Resistance | Grease - 72 hrs | ASTM - D 1308 | |
| Boot Polish - 2 hrs | |||
| G) Boiling Water | 2 hrs | Blister Resistance | |
| (Blister Resistance) | |||
| Polyurethane Foam (PUF) | |||
|---|---|---|---|
| SL No. | ITEM | VALUE | APPLICABLE SPECIFICATIONS |
| 1 | Material | Polyurethane Foam | BS 43 TO : 1960 |
| 2 | Modular Density | 40 +/- 2 Kg/m3 | BS 43 TO : 1960 |
| 3 | Compressive Strength | 1.2 Kg/sq.cm | BS 43 TO : 1960 |
| 4 | Cross Breaking Strength | 4 Kg/sq.cm | |
| 5 | Tensile Strength | 55 PSI | |
| 6 | Continuous Service Temp. | 85 Deg.C | |
| 7 | Thermal Conductivity @ 10 Deg.C | 0.017 - 0.020 W/M 0k | |
| 8 | Water absorption (% by vol) | 3.1 | ASTM C 272 |
| 9 | Critical Oxygen Index | 23 | ISO 4589 |
| 10 | Dimensional Stability -30 Deg.C / 28 Days |
-0.40% |
| Technical Specification | |||
|---|---|---|---|
| Properties | Thickness | Remarks | |
| 50 mm | 75 mm | ||
| Weight (dry) per Sqm (kgs) | 42 | 58 | |
| Axial load / meter width (KN/m) | 55 | 85 | ASTM E72 (Factor of safety - 2.5) |
| Bending test (4 point UDL) Uniform distributed load (Kg/m2) |
ASTM E72 (Factor of safety - 2.5) |
||
| 2.9 m Span | 66 | 95 | |
| Flexural Strength / Modulus of Rupture (Kg/cm2) | 60 | 50 | IS 2380 - Part 4 |
| Thermal Conductivity (W/m deg. K) | 0.18 | 0.17 | IS 3346 |
| Sound Transmission Coefficient (db) (Typical Test Results of NPL, Delhi) |
40 | 45 | IS: 9901 (Part III) - 1981 |
| Fire rating (minutes) (Typical test results of CBRI) |
105 | 120 | BS 476 Part 20 - 22 |
| Surface spread of flame | CLASS I | BS 476 Part 7 - 1971 | |
| Fire Propagation Index ( I ) | 3.0 | BS 476 Part 6 - 1981 | |
| Ignitability | CLASS P (not easily Ignitable) | BS 476 Part 5 - 1968 | |
| Standard sizes | Length - 2.4 m, 2.7 m, 3.0 m Width - 600 mm |
||
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