Industry guide
How should prepainted aluminium facades be cleaned and maintained?
Plan safe cleaning for prepainted aluminium by identifying the coating, contaminant and exposure, testing a small area and recording the result.
Read articleEVIDENCE / NEWS / KNOWLEDGE
News & industry insights
Clear, source-aware updates and practical material knowledge for people who specify, purchase and work with color-coated aluminium.
Latest
Follow via RSS
Industry guide
How should colour and gloss be specified for prepainted aluminium?
Specify colour and gloss acceptance for prepainted aluminium with an approved master, defined instrument conditions, visual review and lot action.
Read article
Industry guide
What fire-performance evidence should buyers request for prepainted solid aluminium cladding?
Specify fire-performance evidence for prepainted solid aluminium without confusing reaction-to-fire classification, fire resistance or whole-facade approval.
Read article
Industry guide
What should a prepainted aluminium batch-release evidence pack contain?
Build a traceable prepainted aluminium release pack that links the order revision, coil or lot, inspection results, samples, deviations and shipment decision.
Read article
Industry guide
How should UV and condensation weathering be specified for prepainted aluminium?
Specify the lamp, exposure cycle, specimen, control, assessment intervals and release limits before using accelerated UV-condensation evidence for prepainted aluminium.
Read article
Industry guide
How should humidity and condensation resistance be specified for prepainted aluminium?
Choose the humidity or condensation method, then define the specimen, exposure, blistering and corrosion assessment, sampling and release rule for prepainted aluminium.
Read article
Industry guide
How should impact resistance be specified and accepted for prepainted aluminium?
Define the impact method, direction, punch and energy, specimen system, crack and pick-off assessment, sampling and release rule before accepting prepainted aluminium.
Read article
Industry guide
How should flatness, camber and dimensional tolerances be specified for prepainted aluminium coil?
Define the product form, substrate gauge basis, width, camber, flatness condition, sampling and referee rule before accepting prepainted aluminium coil geometry.
Read article
Industry guide
How should coating thickness be measured and accepted on prepainted aluminium?
Specify the method, aluminium substrate, face and layer, instrument checks, sampling positions and referee rule before using dry-film thickness for batch acceptance.
Read article
Industry guide
How should salt-spray acceptance be specified for prepainted aluminium?
Choose the applicable corrosion method first, then define the specimen, artificial defect, edges, exposure, assessment and release rule instead of accepting an isolated hour claim.
Read article
Industry guide
How should scratch resistance be specified for prepainted aluminium?
Separate pencil hardness from stylus scratch resistance, then tie the chosen method, specimen, endpoint and first-piece check to the real fabrication or service risk.
Read article
Industry guide
How should alloy and temper be specified for forming prepainted aluminium?
Choose prepainted aluminium substrate from the most demanding forming step and required finished-part properties, then agree mechanical evidence and a same-lot trial instead of relying on an alloy-temper code alone.
Read article
Industry guide
Why is prepainted aluminium coating peeling? Separate adhesion from cure evidence
A peeling or pick-off result does not identify one root cause. First locate the failed interface, then compare adhesion, cure, deformation and exposure evidence on representative samples.
Read article
Industry guide
How should temporary protective film be specified for prepainted aluminium?
Temporary film can reduce handling and fabrication damage only when its adhesion, coated-surface compatibility, processing route, exposure window and removal check are agreed together. Use this buyer and fabricator approval workflow.
Read article
Industry guide
How should aluminium buyers compare product carbon-footprint claims? An evidence checklist
Two aluminium carbon-footprint figures are comparable only when product, functional unit, system boundary, data period, calculation method and verification status align. Use this buyer checklist to request traceable evidence without treating every order as a CBAM shipment.
Read article
Industry guide
Why is prepainted aluminium more than one coat? Primer, topcoat and backcoat explained
Prepainted aluminium performance comes from the substrate, pretreatment, primer, topcoat and backcoat working as a system—not from one paint name or a single total film-thickness number. This guide explains each layer, common failure clues and how to specify and inspect the coating stack.
Read article
Industry guide
How can prepainted aluminium be bent without coating cracks? Bend radius, flexibility and acceptance checks
Coating cracks during bending are rarely caused by paint alone. This guide explains how substrate, curing, pretreatment, bend radius, direction and temperature interact, and how buyers can validate forming performance before production.
Read article
Industry guide
Aluminium pretreatment for coil coating: chromate vs chromate-free conversion coatings
Conversion coatings sit between the aluminium surface and the paint in coil coating. This guide explains what pretreatment does, how chromate and chromate-free systems differ, and what buyers should specify and verify.
Read article
Industry guide
PVDF vs PE for prepainted aluminium: choose by exposure, forming and evidence
Do not choose architectural prepainted aluminium from a PVDF or PE label alone. Use this exposure, forming and evidence matrix to write an RFQ and approve the production first piece.
Read article
Industry guide
How should color-coated aluminium coil be stored and transported? A practical moisture and handling checklist
Color-coated aluminium coil stays usable through storage and transport when the plan controls moisture, condensation, support, lifting and stock rotation. This guide turns industry guidance into a practical checklist for buyers, warehouses and fabricators.
Read articleIndustry guide
What is coil-coated aluminium? A buyer's guide to the continuous coating process
Coil-coated aluminium is cleaned, pretreated, roll coated, cured and rewound before fabrication. Learn how each process step translates into a purchase specification.
Read article
Industry guide
How to inspect incoming color-coated aluminium coil: a practical release checklist
How to define lots, sampling, colour, gloss, test methods and disposition for a traceable color-coated aluminium incoming-inspection plan.
Read article
Industry guide
Practical guide to specifying color-coated aluminium
A workable prepainted aluminium RFQ connects end use, forming, alloy and temper, dimensions, front and back coatings, appearance, test methods, packaging and release evidence. Use this buyer checklist to expose open decisions before quotation.
Read article
Company news
Qihao Aluminium launches its global website
Qihao Aluminium's global website brings product directions, applications, manufacturing context, public evidence and export contact details into one English-language source.
Read article