Approved products for use in the UK's public water supply

PART C: LINING /COATINGS AND SEALANT & REPAIR MATERIALS

C.1 IN-SITU INSTALLED (TUBULAR) PIPE LININGS

Angus Fire Armour Ltd

DWI 56/4/45 Thermopipe

C.2 IN-SITU APPLIED PIPE COATINGS

In-situ applied lining products approved for use by the Authorities in the UK must be applied in accordance with strict operational requirements as documented in the Water Industry Information & Guidance Note IGN 4-02-02 http://www.wis-ign.org/downloads/IGN%204-02-02.pdf "Code of Practice: In-situ resin lining of water mains" and the Water Industry Specification WIS 4-02-01 http://www.wis-ign.org/downloads/WIS%204-02-01.pdf "Operational Requirements: In situ resin lining of water mains".

Thus from 1 April 2007 all water undertakers shall apply coatings in accordance with the Operational Requirement in order to comply with the relevant Regulations . The following conditions replaced the previous specific conditions:

• All water undertakers and contractors must apply the coating in accordance with: WIS 4-02-01"In-situ resin lining of water mains" published by Water UK Standards Board.
• Coatings must be applied by an approved contractor, listed for the purposes of coating water supply pipes in the Authorities' List of Approved Products (this publication), or, from December 2007, in any subsequent listings produced on behalf of Water UK.
• The approved product must be manufactured and applied under the effective control of a BSEN ISO9000 Quality System and approved by a third party certification organisation.

UKAS is expected to be responsible, on behalf of Water UK, for Accreditation of Water UK Nominated Certifying Bodies and Nominated Training Certifiers. DWI Nominated Certifying Bodies and Training Providers have until 31 December 2007 to obtain the new accreditation.

The List of Approved Products no longer includes the list of the lining contractors who have been approved (under the previous DWI arrangement) by each of the appointed organisations and have achieved full third party certification.

C.2.1 Coatings based on epoxy resins

These products must be applied by a certified contractor.

3M E Wood Ltd

DWI 56/4/300 Scotchkote 162 PWX

DWI 56/4/760 Geopox GX 014

Leighs Paints

DWI 56/4/253 Pipegard P300

Subterra - a division of Daniels Contractors Ltd

WS 34/1/124 ELC 173/90

C.2.2 Coatings based on polyurethane

These products must be applied by a certified contractor.

3M E Wood Ltd

DWI 56/4/336 Scotchkote 169

DWI 56/4/657 Scotchkote 169HB

DWI 56/4/645 Scotchkote 169LV

Subterra - a division of Daniels Contractors Ltd

DWI 56/4/579 Fast-Line

DWI 56/4/698 Fast-Line plus

C.3 SITE APPLIED COATINGS FOR WATER RETAINING STRUCTURES

The products listed below in this section, in addition to being approved for site applied coatings for water retaining structures, are suitable for use in large diameter mains where they can be applied by hand e.g. brush or spray.

The coatings listed in this section have been subject to review by DWI (including testing), on the basis of their proposed use with inert substrates such as metallic or cement based structures, and upon the detailed application and curing requirements set out in the manufacturer's Instructions for Use document. They have not been evaluated for any other aspect, such as fitness for purpose.

For use with non-metallic non-cementitious materials, such as plastics and rubbers, a specific application for approval would be required for use of the coating with a specific substrate.

C.3.1 Coatings based on epoxy resins

The following conditions apply unless otherwise indicated:

(i) the minimum cure time is 16 hours; and
(ii) the minimum cure temperature is 3°C.

Corroless Corrosion Control

DWI 56/4/305 Corroguard 595

3M E Wood Ltd

DWI 56/4/669 Copon Hycote 160PW (Activator L0120)

DWI 56/4/759 Copon Hycote 162 PW

The above product is also suitable for brush application of large diameter mains pipes when used in conjunction with the IFU associated to this product.

DWI 56/4/300 Copon Hycote 162PWX

DWI 56/4/760 Geopox GX014

Leighs Paints

DWI 56/4/253 Leighs Waterline P300

DWI 56/4/253 Pipegard P300

Sika Ltd

DWI 56/4/197 Sikagard 62

For this product the following condition applies:
The product must be cured in accordance with the cure curves provided in the Instructions for Use. The required cure time can be calculated by the user from the minimum daily temperature at the site of application. If the temperature cannot be measured and recorded then a minimum cure period of 21 days must be used.

Subterra - a division of Daniels Contractors Ltd

DWI 56/4/71 ELC 173/90

C.3.2 Coatings based on polyurethane

3M E Wood Ltd

DWI 56/4/619 Copon Hycote 165 PW

For this product the following condition applies: The product must be cured for a minimum period of 7 days at a minimum temperature of 7° C.

DWI 56/4/613 Copon Hycote 165 PW- PR

For this product the following condition applies: The product must be cured for a minimum period of 7 days at a minimum temperature of 7° C.

ITW Irathane International

DWI 56/4/276 Aqualine 650 with Irabond BC50

For this product the following condition applies: The product must be cured for a minimum of 21 days at a minimum temperature of 7°C.

C.3.3 Coatings based on ebonite

IQL Ltd

DWI 56/4/748 IQL 136 DW Hard Ebonite

For this product the following condition applies:
This company has been granted approval to apply and cure this product on or within water retaining structures

C.4 FLEXIBLE COVERS AND LININGS FOR WATER RETAINING STRUCTURES

DRC Polymer Products Ltd

DWI 56/4/337 Hylam FPA

Sarnafil Ltd

DWI 56/4/510 Sarnafil MCG 780-15

Stevens Geomembranes - JPS Elastomerics

DWI 56/4/278 Stevens Polypropylene Geomembrane

TBS Elastomers

DWI 56/4/278 Ecoseal PP - DW

Note: Laminated flexible covers and linings for water retaining structures may not necessarily have been assessed for uses totally immersed in water, e.g. as baffles.

C.5 CEMENTITIOUS COATINGS

BASF Construction Chemicals ( UK) Ltd

DWI 56/4/156 Mainline

For this product the following condition applies:
This product has been approved for use only in contact with water of alkalinity greater than 40 mg l ^-1 CaCO3.

DWI 56/4/86 Thoroseal FX 100

DWI 56/4/86 Thoroseal Plaster Mix/Acryl 60

DWI 56/4/86 Thoroseal/Acryl 60

British Cement Association

DWI 56/4/453 Cemline I

DWI 56/4/465 Cemline II

For these products the following condition applies:
Use of these generic products must conform to the In-situ cement mortar lining-Operational Guidelines and Codes of Practice published by Water Research Centre plc,1990 ( ISBN 0902156 84 5).

Flexcrete

DWI 56/4/95 Flexcrete Cementitious Coating 851 Grey

DWI 56/4/95 Flexcrete Cementitious Coating 851 White

DWI 56/4/95 Monolevel 844SP

Fosroc Ltd

WS 34/1/109 Nitocote CM 210

For this product the following condition applies:

The minimum cure time is 7 days.

Fullstop Technology Ltd

DWI 56/4/487 Xypex Admix C-1000 NF

DWI 56/4/487 Xypex Concentrate

DWI 56/4/487 Xypex Modified

ITW Irathane International

DWI 56/4/293 Irathane CR 94

Natural Cement Distribution Ltd

DWI 56/4/840 NATCEMAC

Sika Ltd

DWI 56/4/94 Sikatop-Seal 107

For this product the following condition applies:

The product must be cured for a minimum 7 days at a minimum temperature of 7ºC.

Vandex International Ltd

DWI 56/4/48 Vandex BB 75

DWI 56/4/48 Vandex BB White

DWI 56/4/48 Vandex Concrete Grey

DWI 56/4/48 Vandex Mineralit

DWI 56/4/48 Vandex Premix

DWI 56/4/48 Vandex Pure

DWI 56/4/48 Vandex Super

DWI 56/4/48 Vandex Uni Mortar 1

C.6 SEALANT & REPAIR MATERIALS

BASF Construction Chemicals ( UK) Ltd

DWI 56/4/156 Dryjoint/Acryl 60

DWI 56/4/156 Structurite/Acryl 60

DWI 56/4/144 Thoroflex 200 expansion joint system

For this product the following condition applies:

This product must be cured for a minimum of 21 days at a minimum temperature of 7ºC

Flexcrete

DWI 56/4/95 Fastfill

DWI 56/4/95 Monomix

DWI 56/4/95 Monomix WS

DWI 56/4/95 Steel Reinforcement Protector 841

Fosroc Ltd

DWI 56/4/297 Renderoc Plug 20

Fullstop Technology Ltd

DWI 56/4/487 Xypex Patch'n Plug

ITW Irathane International

DWI 56/4/276 Irathane Plug

Natural Cement Distribution Ltd

DWI 56/4/483 NATCEM 35

DWI 56/4/840 NATCEMAC

DWI 56/4/483 Shotcrete 513

Samuel Cooke & Co Ltd

DWI 56/4/718 Fastplug Cement

Sika Ltd

DWI 56/4/94 Plastocrete OC

DWI 56/4/94 Sika 1

For these products the following condition applies:

This product is approved for use with Portland BS12 cement.

DWI 56/4/217 Sika 101 HD

For this product the following condition applies:

The minimum cure time is 21 days.

DWI 56/4/94 Sika 4a

DWI 56/4/94 Sika AER

For these products the following condition applies:

This product is approved for use with Portland BS12 cement.

DWI 56/4/216 Sika Monotop 610/612

For this product the following condition applies:

The product must be cured in accordance with the cure curves provided in the Instructions for Use. The required cure time can be calculated by the user from the minimum daily temperature at the site of application. If the temperature cannot be measured and recorded then a minimum cure period of 21 days must be used. (The approval for this product applies solely to this product and does not include primer materials.)

DWI 56/4/94 Sikacem 133 Gunite

For this product the following condition applies:

The minimum cure time is 21 days.

DWI 56/4/94 Sikadur Combiflex Using Sikadur 31 Rapid

For this product the following condition applies:

This product must be cured in accordance with the cure curves provided in the Instructions for Use. The required cure time can be calculated by the user from the minimum daily temperature at the site of application. If the temperature cannot be measured and recorded then a minimum cure period of 15 days must be used.

DWI 56/4/94 Sikatop 121

DWI 56/4/94 Sikatop 122

DWI 56/4/94 Sikatop 122HB

For these products the following condition applies:

The minimum cure time is 21 days.

Vandex International Ltd

DWI 56/4/48 Vandex Plug