AK Appleply Crown Block Board (MR Grade as per IS 1659)
Built for strength and lasting performance, AK Appleply Crown Block Board is engineered to meet high standards of stability and durability.
Features
Common Size
8 feet x 4 feet, 7 feet x 4feet
Common Thickness Range
Upto to 19mm
Key Features of AK Appleply Crown Block Board (MR Grade as per IS 1659)
- Manufactured using MR Grade Resin
- Tested for 180 minutes in 60°C hot water
- Backed by an 8-year warranty
- Resistant to – Borer Infestation.
Laboratory Test Report of Ak Apple Ply Crown
Block Board
(MR Grade as Per is 1659:2004)
Size: 2440 x 1220 x 19mm
| SL No | TEST | PRESCRIBED VALUE | RESULTS |
|---|---|---|---|
| 1 | Visual Inspection – Permissible defects | Block board shall be inspected visually for surface defects. | Satisfactory. |
| 2 | Dimensions, a) Length, mm b) Width, mm c) Thickness, mm d) Variation in thickness, mm e) Squareness, % f) Edge straightness, % |
Tolerance +6mm -0mm Tolerance +3mm -0mm +/-5% Not more than 0.5mm 0.2% 0.2% |
+2mm +1mm +1.10% 0.31 0.08% 0.06% |
| 3 |
Dimensional Changes Caused by Humidity
a) Changes in length, mm b) Changes in thickness, mm c) Local planeness |
+/-1 +/-1 +/-1 |
+0.44 -0.45 +0.46 |
| 4 | Resistance to water | Minimum Pass Standard | Excellent |
| 5 | Adhesion of plies (Knife Test) | Minimum Pass Standard | Excellent |
| 6 | Resistance to microorganisms (Mycological Test) | No sign of separation at the edges | Conforms |
| 7 | Modulus of Elasticity, N/mm² |
Average – 4000 Min. Individual – 3400 |
4852 4653 |
| 8 | Modulus of Rupture, N/mm² |
Average – 40 Min. Individual – 34 |
49 45 |
| 9 | Spot test | Treated | Treated |