85FMR_A04-00PaintPeranceSpec.doc

DELL CONTROLLED PRINT Paint Performance Specification Number 85FMR Revision A04 00 Approval AuthoritiesApproval SignaturesRevisionDate Approved Mechanical EngineerGreg BrownA00 008 16 00 PROPRIETARY NOTE This item is the property of Dell Computer Corp Austin Texas and contains confidential and trade secret information This item may not be transferred from the custody of Dell Computer Corp except as authorized by Dell Computer Corp and then only by way of loan for limited purposes It must not be reproduced in whole or in part and must be returned to Dell Computer Corp upon request and in all events upon completion of the purpose of the loan Neither this item nor the information it contains may be used by or disclosed to persons not having a need for such use or disclosure consistent with the purpose to the loan without prior written consent of Dell Computer corporation Table of Contents 1 REVISION HISTORY 3 2 INTRODUCTION 4 2 1 PURPOSE OBJECTIVE 4 2 2 SCOPE 4 2 3 REFERENCES 4 2 4 DEFINITIONS 5 3 PAINT PERFORMANCE REQUIREMENT 5 3 1 GLOSS 5 3 2 ADHESION 5 3 3 FILM HARDNESS 6 3 4 UV RESISTANCE 6 3 5 CURE 6 3 6 ABRASION 6 3 7 PRACTICAL WASHABILITY 7 3 8 SOLVENT RESISTANCE 7 3 9 HUMIDITY RESISTANCE 7 3 10 DIRECT IMPACT 7 3 11 THERMAL CYCLING 7 3 12 DRY FILM THICKNESS 8 3 13 SURFACE CONDUCTIVITY ESD FOR METALLIC PARTS 8 4 COLOR REQUIREMENT 8 5 TEXTURE REQUIREMENT 8 6 QUALIFICATION PROCEDURE 9 6 1 PAINT QUALIFICATION PROCESS FOR NON PRODUCTION PROGRAM BUILDS 9 6 2 PRODUCTION QUALIFICATION REQUIREMENT 10 6 2 1 Paint Supplier Requirements 10 6 2 2 Paint Applicator Requirements 10 6 3 PRODUCTION ON GOING QUALITY REQUIREMENT 11 6 3 1 Paint Supplier Requirements 11 6 3 2 Paint Applicator Requirements 11 7 ENVIRONMENTAL GUIDELINES 11 7 1 MATERIALS AND CHEMICALS RESTRICTED FOR USE IN PAINTS 11 1 Revision History REVECOREVISION DESCRIPTIONAPPROVEDDATE A00 00079532Initial ReleaseGreg Brown08 16 00 A01 00128768Various changes throughout specRick Rogers08 4 02 A02 00133898Various changes to make this a performance specification for plastic sheet metal and cast parts Made a couple additions to designate test to be completely on fully cured samples Changed impact test to direct impact and eliminated the need for applicator to test Rick Rogers09 6 02 A03 00138574Required changes to accommodate solvent based acrylic 1K paints in sections 3 3 3 5 3 6 3 8 3 12 Orin Ozias12 09 02 A04 00152701Modified specification for better clarification of Dell requirements Section 3 2 adhesion added x cut tape test for curved surfaces Section 3 5 cure added high bake acrylic and polyester paints to MEK test Section 6 qualification revised qualification procedure and requirements M Schwager08 12 03 2 Introduction In a marketplace where first impression and perceived images heavily influence product acceptance the appearance of a product can deliver the promise of excellence in performance and functionality The cosmetic appearance of the outside of a product sends an important message to the customer about total quality from the company behind that product Through high standards for painted parts Dell can reinforce its dedication to long term customer satisfaction 2 1 Purpose Objective The purpose of this document is to provide a paint performance specification for plastic sheet metal and cast parts for use by Dell and suppliers worldwide 2 2 Scope This specification defines the Dell Computer Corporation paint performance requirements for paint applied to plastic sheet metal and cast substrates 2 3 References ASTM D2247Standard Practice for Testing Water Resistance of Coatings in 100 Relative Humidity ASTM D2794Standard test Method for Impact ASTM D3359Standard Test Methods for Measuring Adhesion by Tape Test ASTM D3363Standard Test Method for Film Hardness by Pencil Test ASTM D4060 95Standard Test Method for Abrasion Resistance of Organic Coatings by the Taber Abraser ASTM D4674 89Standard Test Method for Accelerated Testing for Color Stability of Plastics Exposed to Indoor Fluorescent Lighting and Window Filtered Daylight ASTM D4752 98Standard Test Method for Measuring MEK Resistance of Ethyl Silicate Inorganic Zinc Rich Primers by Solvent Rub ASTM D4828 94Standard Test Methods for Practical Washability of Organic Coatings ASTM D523 89Standard Test Method for Specular Gloss Dell P N 6724UDell Corporate Cosmetic Spec SPEC DELL COSMETIC CORP STD Dell P N 6T198Dell Materials Restricted For Use SPEC DFE RESTRICTED MTL ESS 6255Electrostatic Discharge Simulation 2 4 Definitions ASTMAmerican Society for Testing and Materials 美國材料測試協會 MSDSMaterial Safety Data Sheet Paint Applicator TestTest conducted by the paint applicator Paint Supplier TestTest conducted by the paint supplier before shipping to the applicator 3 Paint Performance Requirement 3 1 Gloss ASTM D523 89 Measure at 60 angle 5 times 60 測試五次 Pass Criteria Specific gloss shall be determined from the piece part drawing 光澤標准應明確地定義在單件產品的圖面上 Gloss tolerance shall be 3 光澤公差為 3 3 2 Adhesion ASTM D3359 For curved surfaces use Test Method A X cut Tape Test For flat surfaces use Test Method B Cross cut Tape Test and cuts shall be spaced 2 mm apart 平坦表面 使用 測試方法 B 十字切割 膠帶測試 切割分開間距為 2mm Test location for adhesion test shall be determined by the piece part drawing 附著性測試位置應明確的定義在單件產品的圖面上 Pass Criteria Shall be 4B or above see Fig 1 in ASTM D3359 應該是 3 3 Film Hardness ASTM D3363 Pass Criteria Pencil Hardness shall be at least H plastics or 2H metal for solvent based urethane paints and powdered paints without any gouging or scratching on fully cured sample 針對以可溶性聚胺脂涂料或粉末涂料作完全噴涂的樣品實驗處 沒有任何溝槽或刮傷 鉛筆硬度應該至少 H 級 塑膠 或 2H 金屬 Pencil Hardness shall be at least HB plastics or H metal for solvent based acrylic paints water based paints or paints applied to High Impact Polystyrene HIPS plastics without any gouging or scratching on fully cured sample 針對以可溶性丙稀酸涂料 水性涂料 或 噴涂在耐沖擊性聚苯乙烯材料的 涂料作完全噴涂的樣品實驗處 沒有任何溝槽或刮傷 鉛筆硬度應該至少 HB 塑膠 或 H 金屬 3 4 UV Resistance 抗紫外線性能抗紫外線性能 ASTM D4674 89 100 hrs of exposure For metallic paints follow ASTM D1729 for protocol and visual assessment shall be done under the controlled conditions of a light booth such as a Gretag Macbeth Spec tralight III SPL3 100 小時 暴露測試 如金屬噴漆產品依照 ASTM D1729 應該是受管制 條件的光源室 例如 Gretag Macbeth 標准 tralight III SPL3 Pass Criteria E no greater than 1 0 when compared to a non UV exposed control sample 與未進行 UV 暴露測試的管制樣品對比 綜合指數變化 E 不超過 1 0 3 5 Cure 處理處理 ASTM D4752 Fifty 50 double rubs MEK shall be used for solvent based urethane paints powdered paints high bake acrylic or polyester paints Isopropyl alcohol 70 shall be used for solvent based acrylic 1k paints or water based paints 五十次摩擦 MEK 應該使用在可溶性聚胺脂涂料或粉末涂料高溫烘烤的異丙酸 或聚脂涂料 70 的異丙基 酒精 應該使用在可溶性的異丙酸或水溶性涂料 Pass Criteria Shall have a resistance rating of 4 or above on fully cured sample 3 6 Abrasion ASTM D4060 95 Number of abrasion cycles shall be 1000 using a CS 17 abrasion wheel weighted with 1000g total weight Tests must be performed on flat surface with at least a 4 minimum diameter 摩擦循環次數應該為 1000 次 使用型號為 CS 17 摩擦滾輪 總重 1000g 測 試時必須在平坦的表面進行直徑至少為 4mm Pass Criteria Weight loss in mg shall be 100mg or less for solvent based urethane paints or powdered paints Weight loss in mg shall be 200mg or less for solvent based acrylic paints or water based paints 3 7 Practical Washability 可洗性可洗性 ASTM D4828 94 Pass Criteria No gloss or color change and no erosion 光澤色差沒用改變和侵蝕 3 8 Solvent Resistance 抗溶劑性抗溶劑性 Follow ASTM D4752 for protocol Fifty 50 double rubs with each of the following materials 1 Lipids fatty hand acids 2 Vegetable oil 3 Motor oil 4 Lemon juice 5 Windex 6 Isopropyl Alcohol 70 and 7 Petroleum distillate Ethanol 100 A 以下物質摩擦 50 次 1 手汗油脂 2 植物油 3 機器油 4 檸檬液 5 氨 化物溶劑 6 70 異丙基 酒精 7 工業用酒精 石油提煉 new white cloth wiping towel or approved equivalent shall not rub thru the paint exposing the substrate material 新的白色棉質 擦拭布 或同等的被承認的擦拭物 經過擦拭后不可裸露底 層的材料 Pass Criteria There shall be no aesthetic surface change or softening on fully cured sample 不應該出現涂裝表面美感的改變或使 樣品表面變軟 3 9 Humidity Resistance 抗濕度性抗濕度性 ASTM D2247 Pass Criteria There shall be no change in color gloss or adhesion and no evidence of water related failure after a period of 72 hrs 經過 72 小時的測試 不可有色差 光澤 附著性能及與水相關的不良缺陷存 在 3 10 Direct Impact 正面沖擊測試正面沖擊測試 ASTM D2794 100 in lbs on iron phosphate cold rolled steel on brittle substrates support so it does not fracture 100 英磅力 約合 45 36kgf 磷酸鐵冷軋鋼 位于易碎的底層 但須保持其不 能破裂 Pass Criteria Paint shall not crack or pick off after impact 經過沖擊后涂層不可破裂 或脫落 3 11 Thermal Cycling 熱循環測試熱循環測試 1 cycle 65 C at 3 hrs 40 C at 3 hrs ramp rate greater than 20 C min 一個循環 65 C 三小時 40C 三小時 溫度變化斜度不可低于 20C 分鐘 Pass Criteria 10 cycles with no abnormalities 10 次循環沒有異常 3 12 Dry Film Thickness Paint supplier and paint applicator shall determine dry film thickness requirement to achieve optimal paint performance as prescribed in this specification and meet color performance requirements Dry film thickness maximum and minumum shall be approved by Dell Mechanical Engineer prior to production and shall be specified on the piece part drawing 3 13 Surface Conductivity ESD For Metallic Parts 表面導電性表面導電性 ESS 6255 Electrostatic Discharge Simulation 25KVA positive and negative test Apply voltage to the dry film surface Pass Criteria No sparking phenomenon between coating surface and the electric probe when the probe is close to the surface 4 Color quirement ASTM D1729 Paint color shall be determined from the piece part drawing and conform with the following spec Dell Corporate Cosmetic Specification P N 6724U SPEC DELL COSMETIC CORP STD 5 Texture Requirement Texture requirement shall be determined from the piece part drawing 6 Qualification Procedure 6 1 Paint Qualification Process for Non Production Program Builds Note Paint formulation that has already been approved by Dell for previous programs does not need to go through the paint qualification process for non production program builds 1 Dell or its approved agent shall provide color standards gloss texture and paint performance this specification requirements to paint supplier 2 Paint supplier formulates paint to Dell s requirements and provides four 4 labeled color chips Paint will be applied using Dell approved equipment and chip size to be no smaller than 3 x 5 Color chip label information should include Dell color name and number Name of paint supplier Material type and number Supplier color match number Date color chip was painted Number of coats applied Thickness of paint applied 3 Chips and documentation are to be shipped to Dell Industrial Design Department or its approved agent Instructions for shipment of samples to Dell or its approved agent for evaluation are available upon request 4 Dell Industrial Design Department or its approved agent will evaluate the submitted samples meet the color and gloss requirements set forth on the color standard and from the Dell Corporate Cosmetic Specification Dell P N 6724U 5 If approval of paint is granted approval will be provided in writing 6 Once approval is received the paint may be used for non production program builds Note Mass production approval will only be granted after both supplier and applicator meet the qualification requirements listed in section 6 2 If paint needs to be reformulated to meet the performance and color requirements set forth the new formulation we need to be resubmitted for approval following the process outlined in this section prior to a mass production qualification effort 6 2 Production Qualification Requirement 6 2 1 Paint Supplier Requirements The paint supplier shall be responsible to perform the following qualification tests to show paint product meets the paint performance requirements outlined in this specification and on the piece part drawing prior to shipping paint product to paint applicators for mass production parts on any program All testing shall be conducted on the substrate material for which the paint was formulated except Direct Impact If the paint has already been qualified on previous programs then the paint supplier shall perform the on going quality tests mentioned in section 6 3 1 as paint qualification on the new program Color 120 total samples 4 different lots 30 samples per lot Gloss 120 total samples 4 different lots 30 samples per lot Texture 3 samples for production qualification Adhesion 3 samples for production qualification Film Hardness 3 samples for production qualification UV Resistance 3 samples for production qualification Cure 3 samples for production qualification Abrasion 3 samples for production qualification Practical Washability 3 samples for production qualification Solvent Resistance 3 samples for production qualification Humidity Resistance 3 samples for production qualification Direct Impact 3 samples for production qualification Thermal Cycling 3 samples for production qualification Dry Film Thickness 3 samples for production qualification Surface Conductivity 3 samples for production qualification 6 2 2 Paint Applicator Requirements The paint applicator shall be responsible to perform the following qualification tests to show paint on the finished product meets the paint performance requirements outlined in this specification and on the piece part drawing prior to shipping finished product for assembly All testing shall be conducted on the finished product Color 120 total samples 4 different lots 30 samples per lot Gloss 120 total samples 4 different lots 30 samples per lot Adhesion 3 samples for production qualification Film Hardness 3 samples for production qualification Cure 3 samples for production qualification Dry Film Thickness 3 samples for production qualification Solvent Resistance 3 samples for production qualification 6 3 Production On Going Quality Requirement 6 3 1 Paint Supplier Requirements The pain