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Questioning the obvious: The Way to perfect product finishing

Questioning the obvious: The Way to perfect product finishing. Malcolm Griffiths & Graham Armstrong. Why the Obvious?. Many Surface Coatings Problems Occur Because: The Correct Specification Is Never Established No Testing Regime Has Been Put In Place. A Multi Way Event. Involve:

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Questioning the obvious: The Way to perfect product finishing

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  1. Questioning the obvious: The Way to perfect product finishing Malcolm Griffiths & Graham Armstrong

  2. Why the Obvious? Many Surface Coatings Problems Occur Because: The Correct Specification Is Never Established No Testing Regime Has Been Put In Place

  3. A Multi Way Event Involve: The End Specifier The Product Manufacturer The Coatings Applicator The Coatings Manufacturer

  4. What To Consider? The Use of The Coated Component The Environment It Is To Be Used In A Sensible Testing Regime For: Type Testing Batch Testing The Ability For All Parties To Keep To Requirements Documentation/Record Keeping

  5. Some Examples Of It Going Wrong! 1.) Vehicle Cabs 2.) Over-coating Pre-Coated Steel 3.) Architectural Acoustic Panels 4.) Aluminium Windows 5.) Playground Equipment

  6. Vehicle Cabs TGIC Polyester Powder Coated Steel Cab Glazed Windows Set Into A Silicone Sealant No Compatibility Testing between Powder & Sealant (Type or Production)

  7. Vehicle Cabs Change In Quality Of Powder to A TGIC Free Version (Environmental & Safety Issues) New Grade Powder Contained Surface Additives Change Effected with No Thought To Testing Result: No Adhesion Of Sealant To Powder Windows All Fell Out!!!

  8. Over-Coating Pre-Coated Steel Polyester Powder Applied Over Pre-Coated Steel Trade Coater Application No Built In Controls On Oven Oven Varying In Temperature

  9. Over-Coating Pre-Coated Steel Result: Varying Adhesion Of Powder Coating To Pre-Coated Substrate Some Random Total Adhesion Loss Simple Regular Oven Testing (Data Logger) Would Have Eliminated Problems

  10. Architectural Acoustic Panels Steel Wall Panels For Use in Prestigious University Foyer Design Featured Multi Hole Acoustic Effect Polyester Powder Coating The Chosen Finish Colour Selected From RAL Range Multiple Batches of Powder Coating Application Through One (Respected) Powder Trade Coater

  11. Architectural Acoustic Panels Lack Of Correct Control Of Colour: At Powder Manufacturer At Applicator At Site Inspection Included A Lack Of Knowledge Of Colour Judgement Both Instrumentally & Visually

  12. Architectural Acoustic Panels Result: “Patchwork Quilt” Effect on Built Wall

  13. Architectural Acoustic Panels

  14. Aluminium Windows Acrylic Finish Black For Aluminium Mullion Window Sections Coating Applied At Trade Coater, But Pre-Treatment Applied At Another Coater No Durability Testing Over “Aged” Chromate Pre-Treatment (Including Variations In Dwell Time)

  15. Aluminium Windows Result: Rapid Corrosion Of Aluminium Extrusions Under Acrylic Coating; Visible As White Spotting On Black Surface All Windows Required Stripping and Re-Coating: £250K COST

  16. Playground Equipment Manufacturers Of Heavy Duty Playground equipment (Council Use) Heavy Section Tubular Steel Construction Original Specification: Zinc Rich Powder Primer Polyester Powder Finish

  17. Playground Equipment Cost Saving Generated Change To Primer: From: Zinc Rich (Proven Corrosion Performance) To: “Standard” Powder Primer No Performance Testing Completed Before Change Effected

  18. Playground Equipment Result: Severe Corrosion Problems In Service Severely Reduced Life Cycle Of Equipment Zn Rich Std

  19. Where Testing is the norm Aerospace Industry

  20. Type & Batch Testing Pre-Treatments & Coatings Coated Components Documentation/Traceability Result: Minimal Component & Coating Failure

  21. Conclusions Involve All Parties Agree Specifications and Testing Regimes (Prototype Phase & Production Phase) Document Process & Test Results Question The Obvious Result: PERFECT PRODUCT FINISHING

  22. For More Information Please contact Indestructible Paint 0121 702 2485

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