3ply Tape

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3ply Tape
Posting date : Mar 31, 2012
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35-
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Detailed Description
3ply Tape is double sided tape. Cold applied tape coating system for corrosion protection of Oil, Gas, Petrochemical, and Waste Water underground or overhead pipelines. It is a three-ply cold applied tape with stabilised polyethylene bcking and butyl rubber adhesive layers on both sides.It is also used as inner-layer tape. It shall be applied by hand or with a wrapping machine ⅡFeatures: Excellent bonding between adhesive and carrier film via co-extruded intermediate layer. Mechanically highly resistant tape system. Practically impermeable to water vapour and oxygen. Resistant to soil bacterial and soil electrolyte. Compatible with coating from PE,PP,FBE,PU,CTE and Bitumen and ext… . A Total Coating System with: High adhesion and shear resistance Resistance to corrosion disbondment High electrical resistance High dielectric strength High corrosion protection for steel substrates III Technical datas PROPERTIES UNIT T 480 T 4100 TEST METHOD Color Carrie film Adhesive inner layer Adhesive outer layer -- black(grey/green) black black black(grey/green) black blac -- Thickness Carrie film Internal Adhesive External Ahesive mm mm mm 0.3 0.34 0.16 0.3 0.45 0.25 ASTM D 1000 Tensile strength N/cm 67 70 ASTMD1000 Elongation at break % 450 500 ASTMD1000 Peel strength to pipe surface at 23 ℃ at 50℃ N/cm 18 1.3 20 1.5 EN 12068 Annex C Peel strength tape to tape at 23 ℃ at 50℃ N/cm 25 3.5 30 4.0 EN 12068 Annex B Dielectric strength Kv/mm 32 33.8 ASTMD149 Insulation Resistance Ohm.m² 1012 1012 EN 12068 Water Vapor Transmission g/ m2 /24h 0.1 0.1 ASTM E 96 Brittleness temperature ℃ -46±4 -46±4 DIN53372 Water Absorption % 0.1 max 0.1 max ASTM D 570 Impact resistance at 23° J 18 18 EN 12068 Cathodic disbandment at 23°c at 50°c mm 15 30 15 30 EN 12068 Lap shear strength at 50℃ N/mm2 0.05 0.05 EN 12068 Ⅳ.TAPE - INNERWRAP - CORROSION PROTECTION TAPE Asymmetrically structured three-ply plastics tape consisting of a stabilized polyethylene backing with plastic butyl rubber on both sides. The consistency of the butyl rubber on the one side facing the pipe surface should be formulated in such a way that, under tension, it flows on uneven steel surfaces. To facilitate correct application this butyl layer should be of a black color. The grey butyl layer of the tape must face the steel and this should always be the thicker layer of butyl rubber. In order to avoid delaminating tape must contain co-extruded intermediate layers. The tape must be fully compatible with the properties of the primer. The tape must be self-amalgamating between the layers and at the overlaps and must have a release paper or film.

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