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U Bolt Coating

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U Bolt Coating Specification

Usage & Applications
Securing Pipes, Rods, Beams, Industrial Fixtures

Diameter
6mm to 20mm or customized

Locking Type
Threaded with standard nut fasteners

Weight
Varies as per size and length

Insulation
Corrosion Protection through Coating

Install Type
Manual or Machine Installation

Tensile Strength
Up to 44 kN (depends on base bolt material)

Features
Anti-Corrosive, Durable, Precise Coating, Weather Resistant

Operating Temperature
-10C to 120C

Rated Temperature
Up to 120C (varies with coating material)

Product Type
U Bolt Coating

Length
Customizable as per requirement

Insulation Material
Epoxy or Polyurethane Coating

Application
Automobile, Construction, Industrial Support, Pipeline Clamping

Storage Temperature
-10C to 50C

Dimension (L*W*H)
As per client specification

Material
Mild Steel, Stainless Steel with Coating

Color
Green, Black, Blue, or as per requirement

Size
M6, M8, M10, M12 or Custom Sizes

Salt Spray Life
Up to 500 hours (varies by coating)

RoHS Compliant
Yes

Adhesion Strength
Meets Industry Standards

Compatibility
Suitable for Mild Steel and Stainless Steel U-Bolts

Coating Thickness
60-120 microns (typically)

Finish Type
Smooth, Glossy, or Matte as required

Surface Preparation
Shot Blasted & Degreased

Packaging
Carton Box or as specified

Corrosion Resistance
Excellent, suitable for outdoor and harsh environments

Process
Spray, Dip, or Electrostatic Coating

Customization
Size, Color, and Coating Material available on request

About U Bolt Coating

Heat Shrink Polyolefin Tube for U-Bolt Coating is suitable for corrosion and mechanical protection between U-Bolts & Pipes.

Pipes running through refineries, chemical plants and offshore platforms are rested on, or secured to, a structural beam support member using U-bolts. Over time the contact area between the un-coated U-bolts and pipe erodes and starts deteriorating the material in the presence of moisture. This excessive corrosion at the pipe support point is the leading cause of process pipe failure and it eventually develops into pinhole leaks.

Features & benefits :

High resistance to impact & abrasion.
Smooth, durable and shrunk over the shank of the U-bolt without any wrinkles, thereby helps reduce the risk of cracking the paint film around the pipe as the bolt is torqued down.
The polyolefin material provides the right combination of hardness and durability to protect the pipe paint but avoids setting up a capillary crevice around the circumference of the pipe.
Has superior jacket tear resistance & elastomeric characteristics allowing better conformance over irregular contours without splitting.
Provides mechanical protection and better abrasion resistance in harsh environments, e.g. tube rubbing against sharp objects or in constant friction
Provides good strain relief.
High shrink ratio (3:1) can help rationalize the stock requirements and also provides a greater application range.
After recovery, it provides an excellent outer cover for protection.
Highly reliable as it is unaffected by heat, ultra-violet rays, vibration, sandblasting or other conditions pertaining to an industrial and marine environment

Market Segment: Electrical, Offshore, Marine, Industrial Oil and Gas Utilities

SELECTION CHART

All dimensions in mm

Code
D Min.
d Max.
T±10%

(mm)
(mm)
(mm)

GRMW 10/3
10
3
1.5

GRMW 12/4
12
4
1.8

GRMW 16/6
16
6
2.0

GRMW 19/6
19
6
2.0

GRMW 22/6
22
6
2.3

GRMW 27/8
27
8
2.5

GRMW 30/8
30
8
2.6

GRMW 33/10
33
10
2.6

GRMW 40/12
40
12
2.7

GRMW 50/16
50
16
2.7

TECHNICAL SPECIFICATION

PROPERTIES
VALUE
STANDARD

Physical

Tensile Strength
12N/mm² (MPA)(min.)
ASTM D638

Ultimate Elongation
350% (Min.)
ASTM D638

Longitudinal Change
- 10% (Max.)
ASTM D2671

Water Absorption
0.5 % (max.)
ASTM D570

Accelerated Ageing
(120°C for 500 Hrs)
ASTM D2671

Tensile Strength
11 N/mm² (Mpa) (min.)
ASTM D 638

Ultimate Elongation
300 % (Min.)
ASTM D 638

Heat Shock (250°C for 30 Min.)
No Cracking or flowing
ESI 09-11

Continuous Temperature limit
-55°C to + 110°C
-

Dielectric Strength
12 KV/mm. (Min.)
ASTM D149

Volume Resistivity
1 x 10¹⁴ Ohm.cm(min.)
ASTM D257

Dielectric Constant
5 (Max.)
ASTM D150

Technical Qualification Report : QR 1025

heat shrink tubings, low voltage tubes, low voltage tube, Corrosion Protection Tube

Exceptional Corrosion Protection

Engineered for harsh environments, our U Bolt coatings provide outstanding protection against rust and corrosion. With up to 500 hours of salt spray resistance, these coatings are perfect for safeguarding U-Bolts used in automobiles, construction, and industrial support. The anti-corrosive layers prolong bolt lifespan, reducing the need for frequent maintenance.

Customizable for Varied Applications

Our U Bolt coatings are highly customizable in terms of size, color, and coating material. Clients can specify dimensions, finishes, and special requirements to ensure products meet unique project demands. This flexibility makes them suitable for securing pipes, beams, rods, and fixtures across a range of industries.

Rigorous Process and Quality Assurance

Each U Bolt undergoes thorough shot blasting and degreasing before coating, ensuring maximum adhesion and durability. We utilize spray, dip, or electrostatic techniques based on end-use requirements, and all coatings comply with RoHS standards. Packaging and storage options further ensure product integrity until installation.

FAQs of U Bolt Coating:

Q: How is the U Bolt coating applied to ensure durability and even coverage?

A: The U Bolt coating process starts with shot blasting and degreasing the surface to enhance adhesion. Coating materials such as epoxy or polyurethane are then applied by spray, dip, or electrostatic methods, resulting in a smooth, even layer with a typical thickness of 60120 microns.

Q: What are the benefits of choosing a smooth, glossy, or matte finish for U Bolt coatings?

A: Choosing among smooth, glossy, or matte finishes allows clients to balance aesthetics with function. Smooth and glossy finishes offer enhanced washability and appearance, while matte provides reduced glare and a subtle look. All finishes retain the coatings protective and anti-corrosive qualities.

Q: When should I opt for a U Bolt with this coating for my application?

A: These coated U Bolts are ideal whenever corrosion resistance and durability are prioritized, especially in outdoor, pipeline, construction, or industrial environments that encounter moisture or harsh weather. The robust coatings effectively extend the U Bolts operational life.

Q: Where are these U Bolt coatings typically used?

A: Our U Bolt coatings are employed in settings such as automotive assembly, construction, industrial support frameworks, and pipeline clamping. They are suitable for a range of environments, from machinery rooms to outdoor infrastructure, thanks to their weather-resistant and anti-corrosive properties.

Q: What customization options are available for U Bolt coatings?

A: Clients can request custom sizes, colors (such as green, black, blue, or more), coating materials, and packaging styles. This adaptability ensures the product meets specific technical and aesthetic requirements for different projects or branding needs.

Q: How do I know if these U Bolt coatings are compatible with my bolts?

A: Our coatings are designed for both mild steel and stainless steel U Bolts, available in standard sizes like M6, M8, M10, M12, or fully customized dimensions. They support manual or machine installation and are suitable for bolts needing anti-corrosive and weather-resistant properties.

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