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Duplex Coatingsdocumenting and resolvingdeviations, nonconformances andcorrective actions.Both quality control and qualityassurance are necessary componentsto verifying specification complianceand quality workmanship. We mustremember that the presence of theOwner (or third party inspector)performing QA on a project does notrelieve the contractor of theresponsibility of performing QC.We must remember that only thequality control has the authority todirect the contractor’s employees orproduction operations unless thecontractor was required to use a 3rdparty quality control representative whois not an employee of the contractor.If an Owner performs his own qualityassurance, he then has a contractualrelationship with the contractor andtherefore exert control through thecontract or by withholding paymentsor stopping of work when operationsor conditions are non-conforming.Should the Owner employ a third partyquality assurance, then the third partyquality assurance does not have acontractual relationship with thecontractor; therefore they can onlyadvise and document the nonconformanceof the contractor’soperations and advise the contractor’squality control or the owner. Shouldthe contractor fail to correct the nonconformance,the owner must decidewhether to stop work, withholdpayment/retention, accept the nonconformanceor take other action.The only way in which the full benefitof the total quality managementprocess can be realised, is throughthe establishment of clearqualifications, responsibilities anddocumentation requirements for bothquality control and quality assuranceon a given project. This will reduceconflicts, avoid duplication ofdocumentation and inspection andmost importantly, offer long lastingprotection of the structure or asset.#1 If essential third party inspection is required it isimperative that the third party coating inspector beadequately qualified to understand the reasons forcompliance and non-compliance – see theAssociation’s Coating Inspectors Course),#2 The hot dip galvanizing process, is controlled by ametallurgical principle between molten zinc andheated steel, should the steel not be cleaned of allcontaminants, such as millscale, grease, etc. thereaction will not take place, resulting in obviousuncoated areas. It is for this reason that hot dipgalvanizing has become to be known as the “Honest”coating. If the coating looks good, it is good!Additionally, most galvanizers arepart of the SABS mark scheme, whereif requested by the customer prior toordering and the steel componentsconform to SANS 14713, they areentitled to issue a SABS Certificateon the applied coating.The Association wishes to thank Mike Book forthis contribution.Manufacturers and distributors of:HOT DIPPED GALVANIZED STEEL?Maintain the integrity of your Zinc protection with Zincfix and our Duplex Coating SystemsCall us for free technical advice and specifications.●●●●●●●●●●●●Chemical Engineering & RepairMaterialsConstruction CementitiousMaterialsCorrosion & ChemicalProtective CoatingsDecorative CoatingsFurniture FinishesFloor SystemsLight Industrial CoatingsPowder CoatingWaterproofingSurface Preparation EquipmentPainting Equipment & SystemsFloor Contracting ServicesWHATEVER YOUR ASSET IS, LET US HELP YOU PROTECT, DECORATE AND MAINTAIN ITCost effective Global Technology Coatings available for almost any surface.Speccoats Paint (Pty) LtdTelephone: 0861 372468 • Facsimile: 011 388 3009 • Email: Sales@speccoats.co.za • Website: www.speccoats.co.zaISO 9001 Company • BEE Level 1 Status1164 CBT (011) 868 3408Volume 5 Issue 4 2008 Hot Dip Galvanizing Today 19