PIPE WRAP TAPE
Leading Manufacturer Of Pipeline Anticorrosive Coating Tape
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942 sereis polyken tape , 3 ply cold applied inner pipe wrapping tape
Equal to berry plastic polyken 942 cold applied butyl rubbercoatings consists of Primer +3ply inner tape (polyken 942 = xunda T 400 ) + 2 ply outer tape(polyken 955 equal to xunda T 200 ) . The primer is 27% solid content, the 3 ply inner tape thickness is 30 mils, the 2 ply outer tape thickness is 20 mils. Totally 50 mils
The primer is called liquid adhesive,anti corrosion paint,primer coat,anti-corrosive glue.
It consisting of butyl based elastomers blended polymeric resins dissolved in an organic solvent. The XUNDA primer suitable for hand brush application to rough,reconditioned or grit-blasted pipe surface. It Similar to American Polyken,product. The usage is to provide a bonding medium between the primed pipe surface and the inner tape
| Properties | Unit | P27 | Test Method |
| Solid content | % | 27 | ISO 3251 |
| Density | Kg/liter | 0.87 | ISO 2811-1 |
| Viscosity+23℃ (out flow time,4mm nozzle) | sec | 40±5 | ASTM D 1200 |
| Flash point | ℃ | 12 | ISO 1523 |
| Drying time | min | 5-10 | -- |
| Color | Black | Visual | |
| Application temperature | ℃ | -10 - 80 | |
| Package | 3.8/10/18/20 Liter per drum | ||
3 Ply inner butyl rubber tape. It also be called double sided tape, double coated tape,three ply inner wrapping
System description:
The XUNDA-T400 series is 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
The 3 Ply inner butyl rubber tape shall be appliedafter the Liquid adhesive and before the outer-layer tape by hand or with a wrapping machine
Structure
The specification of the tape consists of four layers,
Internal Adhesive layer:Butyl rubber
External Adhesive layer: Butyl rubber
Film backing:Special blend of stabilized polyolefines
Interleaf:Antiadhesive Film Treated with Silicone
Features:
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
Physical Properties
XUNDA-T 480
|
Physical Properties |
Test Method | Typical Value | |
| English | Metric | ||
| Color film backing Adhesive inner layer Adhesive outer layer | -- | black(grey/green) black black | |
| Thickness Carrie film Internal Adhesive External Ahesive |
ASTM D 1000 | 12.0 mil 13.6 mil 6.4 mil | 0.30mm 0.34 mm 0.16 mm |
| Total thickness | 32.0 mil | 0.80 mm | |
| Tensile strength | ASTMD1000 | 70 lbs/in | 120 N/cm |
| Elongation at break | ASTMD1000 | 650% | |
| Peel strength to primed steel at 23 ℃ at 50℃ | EN 12068 Annex C | 274.5 oz/in 137.1 oz/in | 30 N/cm 15 N/cm |
| Peel strength tape to tape at 23 ℃ at 50℃ | EN 12068 Annex B | 228 oz/in 32 oz/in | 25 N/cm 3.5 N/cm |
| Dielectric strength | ASTMD149 | 35 Kv | |
| Insulation Resistance | EN 12068 | 108ohm·m² | |
| Water Vapor TransmissionRate (24h) | ASTM E 96 | 0.01g/100sq in/24h | 0.1g/100sq mm/24h |
| Brittleness temperature | DIN53372 | -51±39 | -46±4 ℃ |
| Water Absorption | ASTM D 570 | 0.08 % | |
| Impact resistance at 23° | EN 12068 | 15 J | |
| Cathodic disbandment at 23°c at 50°c |
EN 12068 | 15 mm 30 mm | |
| Lap shear strength at 50℃ | EN 12068 | 0.05 N/mm2 | |
2 ply outer butyl rubber tape, it is also be called outer wrapping tape, outer wrap, mechanical protection tape
System description:
The XUNDA-T200 series is Cold applied tape coating system for corrosion protection of Oil, Gas, Petrochemical, and Waste Water underground or overhead pipelines. The outer tape backing shall be compounded so that it will be resistance to outdoor weathering.
The outer butyl rubber tape shall be applied after the inner tape by hand or with a wrapping machine
Structure:
The specification of the tape consists of two layers, adhesive layer and film backing
Adhesive: butyl rubber
Film backingr: Special blend of stabilized polyethylene
Features:
Excellent adhesion to inner tape and self
Resistant to UV
Can be applied over a wide temperature range
Good conformability and consistent uniform thickness
Easily applied with no special equipment
Compatible with common pipe coatings
Excellent resistance to cathodic disbonding
Meets ASTM D 1000 Standard
Cold applied
Physical Properties:
XUNDA-T 250 =Polyken 955-20
|
Physical Properties |
Test Method | Typical Value | |
| English | Metric | ||
| Total thickness | ASTM D 1000 | 20.0 mil | 0.50mm |
| Backing thickness | ASTM D 1000 | 13.0 mil | 0.32 mm |
| Adhesive thickness | ASTM D 1000 | 7.0 mil | 0.18 mm |
| Width | - | 2’’- 32 ‘’ | 50 -800 mm |
| Length | - | 100’ -800 ‘ | 30 -240 m |
| Backing colour | - | White | |
| Tensile strength | ASTM D 1000 | 70 N/ cm | |
| Elongation | ASTM D 1000 | 400 % | |
| Peel Adhesion to innertape | ASTM D 1000 | 5 N/cm | |
| Cathodic Disbandment | ASTM G8 | 0.25 in radius 6.4 mm | |
| Dielectric Strength | ASTM D 149 | 40 Kv | |
| Volume Resistivity | ASTM D 257 | 2.0x1012ohm.cm | |
| Water Absorptivity | ASTM D 570 | 0.1 % | |
| Water Vapor Transmission Rate (24h) | ASTM F1249 | 0.1g/100sq mm/24h | |
| UV resistance | - | Excellent | |
| Application Temperature | - | -10 ℃ - 60 ℃ | |
| Max Service Temperature | - | - 40 ℃ - 80℃ | |
How to install it ?
Metal Surface Condition:
Bare pipe shall be free from mud, mill scale, mill lacquer, wax, coal tar, asphalt, oil, grease, or any other foreign material. Before blast cleaning, surfaces shall be inspected and pre-cleaned according to SSPC-SP 1 to remove oil, grease, and loosely adhering deposits. Visible oil and grease spots shall be removed using a solvent. Only solvents that do not leave a residue shall be used. Preheating to remove oil, grease, and mill scale may be used provided that all pipe is preheated in a uniform manner to avoid distortion.
Liquid Adhesive Application
The liquid adhesive shall be applied in a uniform thin at the coverage rate recommended by the manufacture. The liquid adhesive shall be thoroughly and continuously mixed and agitated during application to prevent settling. The liquid adhesive may be applied to the entire exterior surface of the pipe by spray-type or rug-type methods or other suitable means to cover the entire exterior surface of the pipe. The liquid adhesive coat shall be uniform and free from floods, runs, sags, drips, or bare spots. The liquid adhesive coated pipe surface shall be free of any foreign substances, such as sand, grease, oil, grit, rust particles, or dirt. Before applying the inner-layer-tape, the liquid adhesive layer shall be allowed to dry in accordance with the manufacturer's recommendation.
Application of Inner-layer butyl rubber tape
The inner-layer tape shall be applied directly onto the prepared pipe surface using mechanical constant tension coating equipment. The inner layer tape shall be spirally applied with overlap width and application tension as recommended by manufacture. When applied to spirally welded pipe , the direction of the tape spiral shall be generally parallel to the weld spiral. The minimum overlap shall not be less than 25 mm. When a new row of tape is started, the ends shall be overlapped at least 150 mm measured circumferentially.
Application of Outer-layer butyl rubber tape
The Outer-layer tape shall be applied over the inner -layer tape using the same type of mechanical equipment used to apply the inner-layer tape. The overlap of the outer-layer tape shall not coincide with the overlap of the inner-layer tape. The minimum overlap of the applied tape and minimum end lap of two rolls shall be the same as that of inner-layer tape. The outer-layer tape shall be applied at minimum roll temperature of 21 ℃. The tape manufacture shall be consulted for recommended temperature of roll above 21 ℃ to enhance conformability of the outer-wrap to the pipe surface.
Company information:
Industries that We Serve
Oil, Gas and Water Transmission pipeline market
Oil and Gas distribution and utility markets
New pipeline construction markets
Rehabilitation and Reconditioning market
Offshore Industry
Refinery and Petrochemical Plant Industry
Manufacture of Polyethylene coatings utilizing Butyl based elastomeric adhesives, Polyethylene films and liquid adhesives for corrosion protection of steel pipe.
Provides corrosion protection with the inherent chemistry of Polyethylene and Butyl Adhesive for resistance to water and oxygen penetration. Oxygen and Water are prevented from reaching the metal substrate, which are necessary and sufficient conditions for corrosion.
Manufacture of conventional and specialty Polyethylene, Polypropylene and Polymeric Alloys and coating systems for pipe corrosion protection.
Manufactures PE coatings systems for applications for New Pipe Construction and Rehabilitation and Reconditioning
Approved to ISO 9001 and to other good manufacturing and technical standards and norms governed within the energy and pipeline industry.
Coating systems that have a broad range of temperature and shear resistance properties to meet the requirements of the pipeline and end-user.
JINING XUNDA PIPE COATING MATERIALS CO LTD CAN PRODUCE OTHER BUTYL RUBBER TAPE AND BITUMINOUS TAPE ALSO