Archco-Rigidon tankerline protection at RPM

Citation

(1999), "Archco-Rigidon tankerline protection at RPM", Anti-Corrosion Methods and Materials, Vol. 46 No. 3. https://doi.org/10.1108/acmm.1999.12846cab.019

Archco-Rigidon tankerline protection at RPM

Archco-Rigidon tankerline protection at RPM

Keywords Chemicals, Denso, Linings, Transport

The Pontefract site of Repair, Protection and Maintenance Ltd (RPM) is now carrying out repairs to road tanker linings up to eight times a month. RPM's customers include nearly every major tanker operator in the UK.

The solvents, acids and effluents carried in road tankers can occasionally attack the linings and in consequence these are regularly checked by spark testing for pinholes or more serious defects. In most cases it will be found that there are only a few pinholes in the lining, which are then touched in with a compatible material.

However, RPM finds that on occasions their customers handle extremely aggressive cargoes and are increasingly finding rogue effluents that can cause damage to the linings. In these instances RPM shot blast all areas of damaged coating back to bare metal and then apply 2mm of Winn & Coales Archco-Rigidon Tankerline 403D coating, followed by a top coat used to give additional longevity and resistance to certain cargoes such as hydrofluoric acid (Plate 5).

Plate 5 A road tanker relined with Winn & Coales Archco-Rigidon Tankerline 403D by RPM Ltd

Archco-Rigidon Tankerline is formulated from a glass flake filled vinyl ester resin and has been specially developed for such hazardous chemical environments.

RPM's procedure for all its tanker customers is to randomly thickness check the tanker barrel throughout; record the highest, lowest and average readings and any areas of concern. All the coated areas of the road tanker barrel are spark tested by section, including pipe and flange connections, with particular attention to areas more susceptible to damage, such as manway lids and baffle plate edges. Any sparking to the substrate is repaired as necessary. A full report and recommendation are given to the customer if anything more than minor touch-up repairs is required.

Further details from Winn & Coales (Denso) Ltd. Tel: +44 (0)181 670 7511; Fax: +44 (0)181 761 2456.