The cover consists of FRP or FRPP, which have excellent strength and durability, and a foamed polyethylene sheet, which has superior shock absorbability and heat insulating and waterproof properties.
FRP is an unsaturated polyester resin reinforced and formed with a polypropylene resin reinforced with a long fiber glass mat.The cover can be fastened by flanges or bolts.
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Test items |
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Corrosion-resistant cover Barcol hardness, HBa |
≥ 35 |
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≥ 147 |
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≥ 45(Gel layer and rich resin layer) |
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≥ 70（ resin rich layer） |
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Corrosion-resistant cover flame retardant abilities(oxygen index), % |
≥28 |
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Corrosion-resistant cover water absorption, % |
≤ 0.5 |
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≥ 50 |
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Corrosion-resistant cover cushion effect, MPa |
≥6.61 |
