Three-Layer Anticorrosion Inner Coating for New and Existing Pipeline Protection

Product Description

System Overview

The double-sided butyl rubber adhesive tape is a cold-applied material designed as the inner layer of a multi-ply pipeline coating system. It is primarily used for the corrosion protection of oil, gas, and water pipelines, either underground or aboveground.

A liquid adhesive primer is recommended before application. The primer forms an initial anticorrosion barrier and creates a smooth, uniform surface to ensure strong adhesion of the double-sided tape to the pipe. The typical installation sequence is:

1. Apply liquid adhesive (primer).

2. Wrap the double-sided adhesive tape (inner layer).

3. Apply the outer protective tape.

 

Structure

The tape consists of four layers:

1. Internal adhesive layer: butyl rubber

2. External adhesive layer: butyl rubber

3. Film backing: special blended polyethylene

4. Interleaving: siliconized release film

Different models (e.g., T-430, T-435, T-440, T-450) are available with varying thicknesses.

 

Features & Benefits

• Uniform thickness and consistent adhesion

• Long-term underground performance and durability

• Excellent resistance to cathodic disbondment

• High flexibility and conformability to pipe surfaces

• Cold-applied, easy and safe installation

 

Typical Technical Properties

Property	Test Method	Typical Value*
Tensile Strength	ASTM D1000	43-52 N/cm
Elongation at Break	ASTM D1000	350-400%
Peel Adhesion to Primed Steel	EN12068	≈20 N/cm
Peel Adhesion (Internal/External Layers)	EN12068	≈28 N/cm
Peel Adhesion (External to External Layer)	EN12068	≈21 N/cm
Cathodic Disbondment Radius	EN12068	≤5 mm
Water Vapor Transmission Rate	ASTM F1249	≤0.3 g/m²/24h
Volume Resistivity	ASTM E257	≥2 × 10¹ ohm·cm
Dielectric Strength	ASTM D149	≈46 kV
Water Absorption	ASTM D570	≤0.1%
Impact Resistance	EN12068	≥15 J
Service Temperature Range	-	-30 °C to +85 °C
Application Temperature Range	-	+5 °C to +50 °C

*Values may vary depending on specific tape grade.

 

Ordering Information

• Total Thickness Options: 0.76 mm, 0.89 mm, 1.02 mm, 1.27 mm

• Tape Widths: 50 mm, 100 mm, 150 mm (custom sizes available)

• Tape Lengths: 30 m, 50 m, 100 m (custom lengths available)

• Color: Standard black; other colors available on request

• Core Diameter: 76 mm standard; custom options available

Applications

• Petroleum and Natural Gas Pipelines
• Over the Ditch Line Coatings
• Girth Weld Coating
• Plant Applied Line Coatings
• External Anticorrosion of Metal Pipes
• Chemical Electric Power Pipeline Projects and Facilities
• Water Supply Pipeline Urban Gas Pipeline Network

Company Profile

Huaian Construction New Material Co., Ltd. is a professional manufacturer specializing in high-performance industrial materials. We are committed to providing comprehensive solutions for structural reinforcement, leakage repair, and corrosion protection of industrial pipelines, as well as waterproofing systems for buildings.

Our product portfolio covers a wide range of applications:

• Waterproof Materials: Various membranes, coatings, and related products that are non-toxic, durable, and suitable for multiple construction environments.

• Anticorrosive Materials: A complete range of anticorrosion tapes, shrinkable sleeves, and other products designed to safeguard pipelines against corrosion.

• Industrial Tapes: Including masking tape, electrical tape, and specialized protective and repair tapes for diverse industrial uses.

• Insulation Blanket Products: Thermal and waterproof insulation blankets, including aluminum-coated types, for reliable heat insulation and moisture protection.

With a strong focus on quality, reliability, and environmental responsibility, we aim to deliver innovative materials and tailored solutions to meet the evolving needs of global customers.

FAQ
1. Manufactureror Trading Company
We are manufacturer, located in Jiangsu ,China

2. Trade Term
FOB, CIP, CIF, C&F, EXW
 

3. Minimum Order
The minimum order is 3000 rolls.
 

4. Payment Terms
T/T (Telegraphic Transfer) , L/C at sight, Western Union
 

5. Estimated Time of Delivery
Based on order quantity:
Less than 5 tons, around 7-10 days.
5 - 10 tons, around 10-12 days
10- 20 tons, around 12 --15 days
More than 20 tons, depend on the agreement between two parties.
 

6. Free sample
The sample will be free , but the freight charge will be paid by buyer.
 

7. Logistics shipment
We can delivery the product by sea, truck, train, air, express delivery.
 

8. After-sales service.
1). Quality response
2). Providing technical proposal and field application training