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Characteristic | Coowin WPC | Timber | ||
Using property | Resistance to moisture | Waterproof | Not Waterproof | |
Resistance to rot | Antisepsis | Easy to rot,need special treating | ||
Resistance to split | Never split generally | Certin to split ate the effect of weathering | ||
Resistance to disortion | Infrequent to distort | Easy t distort especially outdoor | ||
Application to outdoor | —— | Vary adaptive | A few treated-wood is adaptive | |
Maintenance | Painting | Need not paint | Need to paint periodically to maintain | |
Coloring | Have many types of color itself,needn't paint | Need paint sometimes | ||
Lifespan | —— | No maintance,Longer life-time | Exist with maintance | |
Form | —— | Can be extruded to many types of forms,and can be made by order | Form is simplex | |
Environmental effects | —— | Can be recycled in 100% | Consume woods | |
Summing-up | —— | The retio of capability to price is large | The retio of capability to price is less | |
Physical and Chemical Properties | ||||
Item(s) | Test Result(s) | Test Method(s) | ||
Density | 1.33g/cm3 | ASTM D792-00 | ||
Moisture Content | 0.2% | ASTM D7031-11 Section 5.15 ASTM D4442-16 Method B | ||
Screw withdrawal test | 3353N | ASTM D7032-17 Section 5.5 ASTM D1761-12 | ||
Impact Resistance | >133J | ASTM D4495-16 | ||
Specific Gravity | 1.31 | ASTM D7031-11 Section 5.14 ASTM D792-13 Method A | ||
Shore Hardness | D/70/1 | ASTM D2240-15 | ||
Mouldproof level | 0[1] | ASTM G 21-15 | ||
Formaldehyde Emission | 0.02ppm[2] | ASTM D6007 -14 | ||
Soluble heavy metal | ND[3] | ASTM F963- 16(Clause 8.3) | ||
Fire-Proof Level | Bf1 | EN ISO 9239-1:2010 EN ISO 11925-2:2010+AC:2011 | ||
[1] Mold rating standard: 0 — No mildew or discoloration on the surface [2] 1 ppm = 1 mg/kg = 0.0001% [3] ND = Not detected ( < Method detection limit ) | ||||








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