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Dock Pile Cap

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Dock Pile Cap Specification

Surface Treatment
UV Resistant Coating

Density
0.95 Gram per cubic centimeter(g/cm3)

Size
Custom as per requirements

Thermal Conductivity
0.46 W/mK

Installation Guideline
Pre-drilled and fixed with SS screws or expansion anchors

Layer
Single

Coating Type
UV Protected HDPE

Feature
Corrosion resistant, UV stabilized, long life

Product Type
Dock Pile Cap

Material
HDPE (High Density Polyethylene)

Tensile Strength
>19 MPa

Width
Custom as per pile diameter

Thickness
10 mm to 40 mm

Application
Sea dock pile protection, marine infrastructure

Heat Conductivity
Low

Color
Black, Grey, or Custom

Max Withstanding Temperature
-40C to +80C

Shape
Circular, Square, or Custom profiles

Weight
Varies as per size

Water Absorption
<0.01%

Attachment Method
Flange mount or top-mount

Hardness
>65 Shore D

Maintenance
Low, easy to clean

Resistance
Saltwater, Oil, Chemicals

Impact Resistance
High

About Dock Pile Cap

Our offered Dock Pile Cap is used to top of the Wooden Dock Pile and to protect it from ingress of water and moisture. These caps are manufactured from high quality Cross-linked Polyolefin material or provide a protective barrier between the wood of the piling and the elements of the ocean and weather, meaning that pilings do not have to be replaced as frequently as they may otherwise require. Provided Dock Pile Cap is highly praised for their features like Hot melt adhesive lining provides 100% environmental sealing against weathering, moisture, contamination and adverse environmental conditions according to IP 68, resistance to UV rays and ozone or protects the top of the dock pile from damage caused by freeze and thaw conditions.

Dock Pile Cap is Heat Shrink Cap, used to cover the top of the Wooden Dock Pile & to protect it from ingress of water / moisture, thereby increasing Dock Pile life. The caps are manufactured from high quality Cross-linked Polyolefin material.

The Best & Cost-effective Solution for long term maintenance of Dock Pile :

Wood shrinks when losing moisture from the cell walls & swells when gaining moisture in the cell walls. This shrinking & swelling can result in warping, splitting, cracking mainly from top surface; which can cause gaps & loosening of Tool Handles. Dock Piles which eliminates such problems & avoids extra cost of Clamps, used to tighten the gaps; thereby avoiding long term maintenance of Dock Piles.
Use of Dock Pile typically adds some nominal percentage to the total cost of New Dock Pile replacement. Precaution is always better than cure.

Features:

Hot melt adhesive lining provides 100% environmental sealing against weathering, moisture, contamination and adverse environmental conditions according to IP 68.
Resistance to UV rays & Ozone.
Versatile and cost effective, as 5 sizes & covers Dock Pile dia. from 140 mm to 460 mm.
Service life more than 30 years.
Easy installation on concrete, wood, steel or composite poles in minutes.

Benefits :

Once the heat applied, adhesive filled inside the top surface (optional) melts & penetrates into the Dock Pile cracks and cavities, thereby reinforces the top of the Dock Pile.
Provides excellent Impact resistance, i.e. when a Dock Pile end is covered and hits on a sharp edge, it would not crack.
Prevents birds from perching (woodpecker damage) or nesting on top of round tubular & solid Dock Piles.
Protects the top of the Dock Pile from damage caused by freeze and thaw conditions.
No maintenance after installation
Can also be used on marine pylons to protect piling from internal.

SELECTION CHART

All dimensions are in mm

CODE NO.
Ds (Min.)
Df (Max.)
LS (Min.)
Tf(± 10%)
POLE RANGE

GPC 801S
190
125
220
4.0
140 - 165

GPC 801
230
125
220
4.0
140 - 200

GPC 901
310
120
220
7.0
140 - 280

GPC 1001
400
204
220
6.0
230 - 460

D : Internal Diameter ; s : as supplied ; f : after free recovery

TECHNICAL SPECIFICATION

PROPERTIES
VALUE
STANDARD

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

Ultimate Elongation
350% (Min.)
ASTM D638

Water absorption
0.2 % (max.)
ASTM D570

Accelerated Ageing
(120^oC for 500 Hrs)
ASTM D2671

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

Ultimate Elongation
300%(Min.)
ASTM D638

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

Continuous Temperature limit
-40^oC to + 110^oC
IEC 216

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

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

Dielectric Constant
5 (Max.)
ASTM D150

INSTALLATION INSTRUCTIONS

Dock Pile supplied by us are in an expanded form. When heated above 1250c they attempt to shrink back to their original dimensions, conforming to the objects they cover. Use a propane (preferred) or butane gas torch. Adjust the torch to obtain a soft blue flame with a yellow tip. Pencil-like blue flames should be avoided. Keep the flame moving continuously to avoid scorching the material.

Dock Pile Preparation :

If necessary, cut the Dock Pile end so that it is straight and even. Clean and de-grease the Dock Pile surface that will come into contact with sealant. (Fig. 1)
Installation of Dock Pile:

Place it over the top of the Dock Pile.(Fig. 2)

Shrink it into place, starting at the closed end and working towards the Dock Pile. Adhesive will be visible at ends. (Fig. 3)
Properly installed will be smooth and conform to Dock Pile. Allow the Cap to cool before applying any mechanical strain.(Fig. 4)

Superior Marine Durability

Engineered from premium HDPE material, these dock pile caps excel under extreme marine conditions. Their corrosion and impact resistance, combined with UV-stabilized, saltwater and chemical-resistant features, guarantee long operational life and structural integrity for piers, jetties, and docks.

Customizable Solutions

Choose from circular, square, or bespoke designs, allowing precise adaptation to any pile size or shape. The thickness varies from 10 mm to 40 mm to meet specific requirements, while color options include black, grey, or custom finishes, ensuring projects align with visual and functional needs.

Simple and Secure Installation

Installation is straightforward with flange-mount or top-mount options. Pre-drilled holes are provided for fixing with stainless steel screws or expansion anchors, enabling fast and effective attachment while minimizing downtime and maintenance effort.

FAQs of Dock Pile Cap:

Q: How are Dock Pile Caps installed on marine structures?

A: Pile caps are installed using pre-drilled holes and are secured using stainless steel screws or expansion anchors. Installation can be done via flange-mount or top-mount methods, ensuring a firm attachment to a variety of dock pile shapes and sizes.

Q: What makes HDPE pile caps suitable for saltwater and marine environments?

A: HDPE pile caps excel in marine settings due to their high resistance to corrosion, saltwater, oil, and chemicals. The materials low water absorption and UV-protected surface treatment extend their operational durability when exposed to harsh weather and marine conditions.

Q: Where can these pile caps be used?

A: They are suitable for sea dock pile protection, marina infrastructure, jetties, piers, and other marine environments where pile protection is crucial against impact, corrosion, and UV exposure.

Q: What are the benefits of using UV-resistant, corrosion-proof pile caps?

A: These pile caps offer prolonged service life with minimal maintenance, enhanced protection against environmental damage, and reduced lifecycle costs for dock owners and operators. Their UV stabilization prevents degradation caused by sunlight, ensuring structural soundness over time.

Q: Can the shape and size of the pile cap be customized?

A: Yes, both the shape and size are highly customizable based on the specific requirements of the pile diameter and project needs. Options include circular, square, or custom profiles to fit unique installation conditions.

Q: How do I maintain Dock Pile Caps once installed?

A: Maintenance is minimal due to the non-porous, easy-to-clean surface of HDPE, and routine inspections are recommended to ensure the fixation hardware such as screws or anchors remains secure.

Q: What is the expected temperature range for these pile caps?

A: These caps can reliably withstand temperatures ranging from -40C up to +80C, making them suitable for a variety of climatic conditions commonly encountered in marine and coastal areas.

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