TEL:+86-572-2670601 EMAIL:gw@grinwood.com

QUALITY

Quality


QUALITY ASSURANCE

 

GRINWOOD®WPC are produced from natural substances that are very gently mixed with high-degree of weather resistant additives like anti-UV agent and antioxidant.All these substances cause to highresistant to moisture and termites,no rotting,no cracking,and color stability of all profiles.


GRINWOOD®producer is fully certificated in quality management and what is really important

GRINWOOD®products (materials) are fully certificated by ITC Zin,that follows all necessary EN norm for building materials.Furthermore INTERTEK testing report is obtained according to ASTM standards.


 Test report for hollow deck obtained from INTERTEK according to ASTM standard.

Test item
Test methodTest result
Weathering Resistance TestASTM G154Non-exposured specimen1000h exposured specimen
Flexural strength(MOR)ASTM D610946.8 Mpa44.0 Mpa  decrease 6.0%
Flexural stiffness(MOE)2.5 Gpa2.46 Gpa  decrease 1.6%
Tensile strengthASTM D63837.2 Mpa36.8 Mpa  decrease 1.1%
Impact strength
ASTM D256
51.6/m(CB)49.1j/m(CB)  decrease 4.8%
Color change grade

Gray Scale 2-3
Coefficient of Linear Expansion
ASTM D696
8.56x10-5/
Surface HardnessASTM D1037
9717N
RoHSROHS RequirmentCd:ND4
Pb:ND
Hg:ND
2002/95/ECCR6+:ND
PBBs:ND
PBDEs:ND


Test report for Solid deck obtained from INTERTEK according to ASTM standard.

Test item
Test method
Test result

Water absorption/

Thickness swelling

ASTM D1037-12

Method B

Moisture content before immersion
0.17%
Moisture content after immersion
0.31%
Water absorption(24h)0.14%
Thickness swelling(24h)0.37%
Flexural Properties

ASTM D6109-13

Modified

Modulus of Rupture47.8 Mpa
Modulus of Elasticity
4477 Mpa
Uniform unadjusted allowable Load49.6 kN/m2



Address:Longquanwu Eco-Industrial ZoneMiaoxi, Huzhou, Zhejiang

TEL: +86-572-2670601

FAX: +86-572-2613306

Email: gw@grinwood.com

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