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RAILWAY
LAMINATES
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Railway Laminates are Single Side High Pressure Laminates (HPL). Decorative Thermosetting Synthetic Resin Bonded Paper Based Laminated Sheet Type-1 as per IS 2046 : 1995 & RDSO no. C-K514
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SL.
No.
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Properties
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Specified
Value as per IS:2046, 1995 Type S-CGS
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Typical
Value
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1.
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Appearance | Semi Matt Finish | |
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2.
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Flatness | 600 mm straight edge | . |
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3.
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Permissable limit | Maximum
3 mm (Our observation 1-1.5mm) |
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4.
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Thickness | 3 mm +/- .3 mm | . |
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5.
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Dry Heat Test | Permissable
limit No blistering or applicable surface deterioration or loss of gloss |
Observation Satisfactory |
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6.
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Dimensional
Stability a) One direction b) Other |
0.5 mm max. 0.9 mm max. |
0.4 mm 0.5 mm |
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7.
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Resistance
to immersion in Boiling Water a) Water absorption b) Increase in thickness |
10% 10% |
5% 4% |
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8.
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After
Test Cross breaking strength (Kg/cm) with Decorative face in tension a) One Direction b) Other |
850 min. 850 min. |
950 1000 |
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9.
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Machine Test | Sheet shall be capable of being screwing milled drilled & tapped without splitting or creacking | Satisfactory |
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10.
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Impact strength | 0.035 min. | Above 0.035 |
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11.
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Resistant
to spread of flame (Time to extinguish in second) |
30 seconds | 15 Seconds |
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12.
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Flexural
strength as per IS 13401/1992 |
. | Test value 130 |
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13.
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Surface wear | . | Result initial 161 & final 364 |