We are offering FRP Manhole Cover . standard specifications frp manhole covers are made using thermoset material for long term durability . The material comprises of cross-linked polyesters combined with fibreglass reinforced materials to sustain against wear-n-tear for heavy load vehicular traffic. It is 40% lighter than traditional precast concrete and cast iron covers. Provides upto 5 times more compressive strength. This resilient material withstands constant exposure to weather or sun without sacrificing security or aesthetics. Advantages of frp / grp covers : • no resale value • lighter in weight and easy to handle • corrosion resistant • uv resistant • available in custom sizes to suit all needs • available in load capacities ranging from 5 tons to 40 tons standard sizes available : square : 450mm x 450mm 600mm x 600mm 900mm x 900mm rectangle : 450mm x 600mm 450mm x 900mm 600mm x 900mm 900mm x 1200mm gully grating: 450mm x 450mm 600mm x 600mm round : 530mm dia clear opening 600mm dia clear opening 900mm dia clear opening custom sizes available on request attribute astm test method accelerated service exposure astm d - 756 - 56 procedure e simulated sunlight exposure astm d - 1501 - 71 procedure b section 6 water absorption astm d - 570 - 63 section 5, 6.1, 6.5 flexural properties astm d - 790 flamability test astm d - 635 - 74 attribute astm test method chemical resistance chemical astm d 543 - 47 section 7, procedure 1concentration sodium chloride 5% sulfuric acid 0.1n sodium sulphate 0.1n hydrochrolic acid 0.2n sodium hydroxide 0.1n kerosene per astm d-543 - 67 transformer oil per astm d-543 - 67
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