{"id":49877,"date":"2024-02-20T15:50:34","date_gmt":"2024-02-20T06:50:34","guid":{"rendered":"https:\/\/www.taiyokogyo.co.jp\/products\/49877\/"},"modified":"2025-12-12T20:13:26","modified_gmt":"2025-12-12T11:13:26","slug":"low-density-polyethylene-sheet-gundel-sheet-ld-series","status":"publish","type":"products","link":"https:\/\/www.taiyokogyo.co.jp\/en\/products\/49877\/","title":{"rendered":"\u201dGundle Sheet LD Series\u201d-Low destiny polyethylene sheet-"},"content":{"rendered":"\n
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Product & Service<\/h2>\n\n\n\n
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Product Lineup<\/h3>\n\n\n\n
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Gundle Sheet LDA<\/h4>\n\n\n\n

This low-density polyethylene sheet is highly flexible while retaining the excellent physical properties characteristic of polyethylene. The wide width of more than 6 m enables shortening of the construction period while ensuring the quality of construction.<\/p>\n\n\n\n

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Gundel Sheet LDA Product Catalog<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n
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Gundle Sheet LDM<\/h4>\n\n\n\n

This is a low-density polyethylene sheet polymerized using a metallocene catalyst. In addition to the features of polyethylene sheet, such as excellent chemical resistance, weather resistance, and tensile strength, it has a uniform molecular distribution, is extremely flexible, and has excellent melting properties.<\/p>\n\n\n\n

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Gundel Sheet LDM Product Catalog<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n
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Method of joining impervious sheets<\/h3>\n\n\n\n
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Self-propelled welding situation<\/h4>\n\n\n\n

Self-propelled fusion bonding machines are mainly used to fuse impervious sheets. Pressure is applied while the sheets are heated by a hot plate or hot air to unify overlapping sheets.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n

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Pressure test status<\/h4>\n\n\n\n

The watertightness of the joint is inspected by applying pressure to a predetermined value through the inspection hole in the center of two rows of joints (double seam method) and measuring the amount of pressure reduction.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n

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Extrusion welding status<\/h4>\n\n\n\n

Extrusion welding is used for joints that are difficult to install with a self-propelled fusion splicer. Using a dedicated welding machine, cuttings of the same material as the impervious sheet are melted and integrated with the sheet.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n

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standard value<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n
item<\/th>\nLow elasticity type<\/th>\nMedium elastic type<\/th>\nHigh elasticity type<\/th>\nTest procedure<\/th>\n<\/tr>\n
Thickness (mm)<\/td>\n1.5<\/td>\n1.5<\/td>\n1.5<\/td>\nJIS K 6250 compliant<\/td>\n<\/tr>\n
Tensile performance<\/td>\nTensile strength (N\/cm or more)<\/td>\n120<\/td>\n140<\/td>\n350<\/td>\nJIS K 6251 compliant<\/td>\n<\/tr>\n
Growth rate (% or more)<\/td>\n280<\/td>\n400<\/td>\n560<\/td>\n<\/tr>\n
Tear performance<\/td>\nTearing strength (N min.)<\/td>\n40<\/td>\n70<\/td>\n140<\/td>\nJIS K 6252 compliant<\/td>\n<\/tr>\n
Joint Strength Performance<\/td>\nTear performance<\/td>\n60<\/td>\n80<\/td>\n160<\/td>\nJIS K 6008 compliant<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div>\n\n\n\n
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Usage<\/h3>\n\n\n\n