| 摘要 |
PURPOSE: A laminated sheet for repairing a non-digging drainpipe is provided to harden epoxy resin in a short time without using a heater, and to prevent water pollution. CONSTITUTION: A laminated sheet for repairing a non-digging drainpipe comprises a pelt layer(10), a stainless steel net(20), and a polyurethane layer(30). The pelt layer is impregnated with soluble epoxy resin, and adhered to the inner wall of a drainpipe(D). Intervals of wires of the stainless steel net are 20~30 mesh. The pelt layer, the stainless steel net, and the polyurethane layer are successively laminated.
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