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In order to specify the paints for corrosion protection such as Item No155 – such as PPG’s Sigma Etch, T Wash, or Item No168 – such as PPG’s SigmaDur 550, of structural steelwork in highway applications, the highways agency use a combination of item numbers for the primer, undercoat and top coat which stipulate the type of paint required.

This allows a selection of paint manufacturers to be considered when quoting for the works, ensuring that costs are always competitive. HAPAS certified, these BBA approved paint systems provide performance for over 15 years before major maintenance is required.

PPG Pipeline

HAPAS – Highway Authorities Product Approval Scheme is a nationally recognised approval scheme for systems and products used in highways works.

Providing invaluable information for contractors and designers, this scheme includes data on product performance and project planning specifications for design and installation.

Metal components for Highways include road bridges, footbridges, lighting columns, overhead pylons, manhole covers and many more. Highways have extensive regulations when it comes to paints and coatings to ensure the safety of the public coupled with a long life expectancy, low maintenance products. Footbridges can also require anti slip coatings whether it is through GRP, high visibility nosing or steps or high aggregate sheeting.

It is important when it comes to maintenance and upkeep of bridges, that other authorities can be effected by your actions. For example, if a road bridge or footbridge is over water, the relevant water authority would need to be consulted to ensure any paint or coating does not come into conflict with wildlife or has any waterborne effects to the local environment.

Consequently, if the bridge or road is over a railway, the bridge may belong to the relevant association or owners of the railway rather than be part of Highways. You could find that rail associations work very differently to Highways and subsequently there may be different specifications or regulations on the suitable paints and coatings.

Highways Approval Item PPG Jotun Hempel Sherwin Williams
HA Number 109 PPG SigmaZinc 109 HS Jotun Barrier 80 Hempel Hempadur 17360 Sherwin Williams Zinc Clad M501
HA Number 110 PPG Sigma EP 110 Primer Jotun Penguard Special B10 Hempel Hempadur 1555 E Sherwin Williams Transgard TG110
HA Number 111 PPG Sigma EP 111 Primer Jotun Penguard Express B11 Hempel Hempadur ZP 47940 Sherwin Williams Transgard TG111 V2
HA Number 112 PPG Sigma EP 112 MIOcoat Jotun Penguard Express B12 Hempel Hempadur MIO 47950 Sherwin Williams Macropoxy C267 V3
HA Number 115 PPG SigmaCover 690 Jotun Jotamastic 90 B15 Hempel Hempadur Mastic 8588E 19910
HA Number 116 PPG SigmaCover 456 HS Jotun Jotamastic 90 B16 Hempel Hempadur Mastic 8588E 19910
HA Number 121 Sherwin Williams Macropoxy K267
HA Number 123 PPG SigmaShield 460 Jotun Penguard Pro GF Hempel Hempadur Multi-Strength GF 35870 Sherwin Williams Macropoxy M922
HA Number 155 PPG Sigma Etch Hempel T Wash Sherwin Williams Mordant Wash L703
HA Number 159 PPG Sigma EP 159 Sealer Hempel Hempadur 17940
HA Number 160 Hempel MCU 45760
HA Number 162 Hempel MIO 45760
HA Number 167 PPG SigmaDur 540 Jotun Hardtop CA Sherwin Williams Acrolon C750V2
HA Number 168 PPG SigmaDur 550 Jotun Hardtop XP Hempel Hempathane Enamel 5510E Sherwin Williams Acrolon C137V2
HA Number 169 PPG SigmaDur 520 Jotun Hardtop HB Hempel Hempathane HS 55613 Sherwin Williams Transgard TG169
HA Number 185 PPG PSX 700 Jotun Hardtop Optima