Crown Industries Marine plywood is crafted from selected high quality timber and is bonded with Resorcinol Phenol Formaldehyde. Crown Industries Marine Plywood is impregnated to the core with preservative chemicals in pressure Impregnation Treatment Plant which makes it highly resistant to borer and termites.
Crown Industries Marine Plywood is 72 hours boiling water-proof and is most suitable for use in rigorous conditions and is suitable for ship, boat, building railway coaches, shed & cooling towers etc.
| Test | ISI Requirement | Test Result | ||
|---|---|---|---|---|
| Moisture Contents | 5-15% | 8-10% | ||
| Dimension & Squareness |
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| Dimensional changes caused by humidity | ± 1mm at RH 90% RH 40% | less than 0.6mm | ||
| Adhesion of ply | Excellent | Excellent | ||
| Water Resistance - MR Grade | 3 hours at 60 ± 2°c | more than 12 hours at 60°c | ||
| Water Resistance - BWP Grade | 72 hours at 100°c | more than 72 hours at 100°c | ||
| Mycological Test - Mr Grade | one cycle for 21 days | can undergo 3 cycles of 21 days each without any edge sepration | ||
| MOR | BWP Grade | MR Grade | BWP Grade | MR Grade |
| Avg. N/mm2 | 50 | 40 | 55 | 45 |
| Min. Ind. N/mm2 | 42 | 34 | 48 | 42 |
| MOE | BWP Grade | MR Grade | BWP Grade | MR Grade |
| Avg. N/mm2 | 5000 | 4000 | 5500 | 4500 |
| Min. Ind. N/mm2 | 4200 | 3400 | 4800 | 4200 |