Fire Retardant Plywood
This is a unique composite product , which can arrest fire for a long period, here in the process each layer of the products is saturated with fire retarding chemicals coated with phenolic resins of high solid content and pressed under high temperature and pressure. The gas revolving form it at a high temperature restricts spread of flame for a long period. This is ideal for using any application where fire accident risk is very high.
DENSITY
0.65 to 1.20 gm/cm3
STD. THICKNESS (MM)
4, 6, 9, 12, 18, 25 mm
Size (in feet)
5.5×2.5 to 10.5×5.5 feet
Technical Specification
| Dimension | BIS Requirement | Observation Values | |||
| 1 | Length |
|
2442mm | ||
| 2 | Width |
|
1222mm | ||
| 3 | Thickness | 12mm ±5% | 11.80mm | ||
| 4 | Squareness | 2 mm/1000 mm | 0.95mm | ||
| 5 | Edge straightness | 2 mm/1000 mm | 0.50mm | ||
| 6 |
Workmanship & Finish |
As Per Clause 9.1 to 9.2 | Satisfactory | ||
| Physical properties | |||||
| 7 | Density | 0.60 - 0.65 | 0.64 | ||
| 8 | Moisture content | 5-20% | 10.25% | ||
| 9 | Water resistance test Cyclic test 8 hours - 16 hours Boiling - drying 3 Cycles |
Pass standard | Excellent | ||
| 10 | Mycological Test | Pass standard | Excellent | ||
| 11 | Static bending strength | ||||
| Along the grain M.O.E. | Avg. - 5000 N/mm2 Ind. - 4500 N/mm2 |
5850 N/mm2 4020 N/mm2 |
|||
| Across the grain M.O.E. | Avg. - 2500 N/mm2 Ind. - 2200 N/mm2 |
3480 N/mm2 2855 N/mm2 |
|||
| Along the grain M.O.R. | Avg. - 40 Ind. - 36 |
47.80 N/mm2 36.40 N/mm2 |
|||
| Across the grain M.O.R. | Avg. - 20 Ind. - 18 |
27.25 N/mm2 20.35 N/mm2 |
|||
| FIRE RETARDENT TESTS IS : 5509:2000 | |||||
| 12 | Flammability | 30 Min. | 35 Min. | ||
| 13 | Flame penetration | 30 Min. | 33 Min. | ||
| 14 | Rate of burning | 20 Min. (Wt. loss 30 to 70%) |
28 Min. | ||