Coating and fiber finishing of mooring rope

1. Scope

1.1 This guide aims to provide end-users with information on the use, limitations, chemical series, and inspection of coatings for cables and cable systems.

1.2 This guide does not provide guidance on end use performance requirements or end use performance testing for specific coating types or methods.

1.3 This guide is not intended to address all safety issues related to its use. Users of this guide are responsible for developing appropriate safety and health practices and determining the applicability of regulatory restrictions before use.

2. Provided reference standards and related standards related to this standard

3. Provided the relevant terminology for this standard

4.1 Classification

Water based coating/water-soluble coating

·Anionic water-soluble coating

·Non ionic water-soluble coating

·Cationic water-soluble coating

Solvent based coating

 Hot melt coating

 Extrusion coating

 Powder coating

4.2 Common Coating Types

Polyurethane series

·Waterborne polyurethane is widely used

Waxes wax

·Paraffin Paraffin Saturated Structure C20-C40

·Polyolefin wax C6000

Latex latex

Acrylics Acrylic acid

PVC polyvinyl chloride

·Fluoropolymers Fluorinated Polymers

·PTFE (Polytetrafluoroethylene)

·PFA (Perfluoroalkoxy Polymer Resin)

·FEP (Fluorinated Ethylene Propylene)

·ETFE (Polyethylene etetrafluoroethylene)

·PVF (Polyvinylfluoride)

·PVDF (Polyvinylidene Fluoride)

·Sometimes used in solid form (fibers (ePTFE), film, tape)

Silicones Silicone

Ethyl Vinyl Acetate (EVA)

5. The benefits of selecting and applying cable coatings and fiber finishing correctly.

 5.1 Differences between Fiber Finishing and Cable Coating

·Fiber finishing is the relevant treatment applied to the original yarn before winding and twisting into yarn during the spinning process.

·Cable coating is an independent treatment applied to the cable during or after processing.

5.2 Benefits of Rope and Cable Coating

1. Structure and performance improvement

2. Improved knot tying performance

3. Improved wear resistance and fatigue performance

4. Functionalization

5.3 Quality evaluation of cable coating

The distribution of coatings in cables has a significant impact on the coating effect. Mainly consider three aspects:

 Stability of coating bath solution;

 The distribution of coatings on the surface of ropes and cables: longitudinal distribution, cross-sectional distribution.