All four Suspension Chains have now been repainted using a state-of the-art high-performance coating system, which will protect Tower Bridge for at least 25 years.

The newly painted North West Suspension Chain

A variety of coatings have been used on different areas and sub structures, and the coating system will be touched-up after 12 years.

Grit Blasting the Bridge Parapet

Around 1,500 tonnes of abrasive material was used to blast away the old paint and reveal the original metal framework underneath

Shopprimer E 15280
A two-component epoxy polyamide primer containing zinc phosphate rust-inhibiting pigments

Hempadur Mastic 45880
An extremely robust two-component high build epoxy paint with a high solid content

Hempathane 55810
A low-VOC, two-component polyurethane topcoat with very good gloss and colour retention

Fred, checking the thickness of the paint

The paint film thichness is very important for lasting protection. Paint thickness is measured in DFT (Dry Film Thickness) The thickness is measured in microns. For example, each coating of Hempadur Mastic Aluminium Primer is 175 microns when wet and 125 microns when dry.

The next phase of the restoration will involve the repainting of the Walkways.