Basecoat WB FOR PROFESSIONAL USE ONLY

Transcription

1 WB Description WB waterborne basecoat provides excellent coverage, metallic control and sprayability when used to duplicate OEM solid, metallic and pearl color effects. WB must be used in conjunction with an appropriate Lesonal clearcoat in order to provide protection from the environment. Safety Considerations Use suitable personal protection. AkzoNobel recommends the use of a fresh air supply respirator. Refer to the product Safety Data Sheet (SDS) for more complete safety information. Mixing 0-40 WB Toner Mix Activator WB Use Lesonal Mixing Stick #9 HVLP or Compliant Spray-Gun Set-Up: mm Application Air Pressure: HVLP 10 psi at the air cap maximum. Application Metallic Colors 3 x 1 Coat Full coat / intermediate coat / orientation coat Application Solid Colors 2 or 3 x 1 coat Flash Between Coats at 70 F (20 C) Flash Before Clearcoat Until completely matte Re-Coatable With: Lesonal Clearcoats Mix and apply per technical data sheet specifications Minimum 20 minutes at 70 F (21 C) Minimum 15 minutes at 75 F (24 C) Maximum 24 hours at 75 F (24 C) Read complete TDS for detailed product information. 1 / 7

2 WB Description WB waterborne basecoat provides excellent coverage, metallic control and sprayability when used to duplicate OEM solid, metallic and pearl color effects. WB must be used in conjunction with an appropriate Lesonal clearcoat in order to provide protection from the environment. Suitable Substrates All OEM existing finishes All current Lesonal preparatory products WB should NOT be applied over: Thermoplastic acrylic finishes Direct application on acid containing wash primers and Lesonal Aerosol Spot Primers Products and Additives Product WB MM (Mixing Machine) toners Hardeners Hardener WB Item # Recommended for use to improve system robustness including stone chip resistance, adhesion and system hardness. Also recommended with multi-layer systems are applied and the recommended film thickness is exceeded. Activators Activator WB Item # For use in all repair sizes and application conditions. Recommended temperature is 70 F (21 C) or higher and relative humidity range between 20% and 80%. Additives -Ready Mix Additive Item # For use to extend pot life of WB metallic color formulas. -Lesonal Gun Cleaner WB Item # Basic Raw Materials No flex additive is needed in WB when applying over plastic parts. WB Physically drying binders Hardener WB Polyisocyanate resins Activator WB Water / Glycol mixture Substrate Preparation Pre-Cleaning Prior to commencing any preparation, thoroughly clean the surface and remove contamination prior to product application with AutoPrep Ultra Prep Surface Cleaner or complaint cleaner. Dry Sanding Initial sanding steps may be executed with a coarser sanding grit such as #P360-#P400 Respect a maximum of sanding grit step difference or less throughout the sanding process. Final sanding should be completed with #P500-#P600 grit. 2 / 7

3 WB Product Agitation Mixing Colors Mixing General Wet Sanding Initial sanding steps may be executed with a coarser sanding grit such as #600 Respect a maximum of sanding grit step difference or less throughout the sanding process. Final sanding should be completed with #P600-#P800 grit. Stirring Agitate / gently shake WB toners several times before use for optimal pour viscosity of the MM toners prior to mixing. The following WB toners MUST be shaken or stirred before using the first time 25, 190M, 191M, 192M, 193M, 194M, 195M Formulas A wide range of formulas are available to match the most popular colors. These are available in MixitPro. Hand Mixing Colors Colors can be custom mixed. Toners should be mixed together thoroughly prior to the addition of Activator WB WB Activator WB Mixing High Temperature / Low Humidity The following mixture should be used at temperatures above 70 F and relative humidity below 40% WB Color Activator WB For a color containing MM25 A maximum of 5 parts Activator WB is allowed. For metallic colors up to 30 parts of Activator WB can be added for optimal sprayability. For solid colors A maximum of 10 parts Activator WB is allowed. Mixing Pure Metallic MM Toners If a pure WB metallic toner is used: 1 Part 4 Parts WB MM Metallic Toner WB MM 02 Toner Up to 30 parts of Activator WB can be added for optimal sprayability. 3 / 7

4 WB Mixing Improved System Robustness To achieve improved system robustness included stone chip resistance, adhesion and system hardness the following mix ratio should be used. This is also needed for multi-layer systems in which the film thickness will exceed the recommended limit. 5 WB MM Color Hardener WB Mix well and add Activator WB per the desired application. Viscosity When Mixed seconds Measured with a DIN #4 viscosity cup at 70 F (20 C). DIN #4 Filtering A 125 micron paint strainer, suitable for waterborne coatings, is recommended for optimal filtering. Avoid cross contamination with solvent based products. Pot-Life When Mixed Product Mix Mixed solid and pearl WB Colors WB metallic colors containing toner MM03 WB metallic colors NOT containing toner MM03 WB with 5% Hardener WB 70 F (20 C) 3 months 1 day 1 week 3 hours Mixing Ready Mix Additive To obtain a 3 month pot life for all WB Metallic colors 5 g WB Mixed Metallic Color Ready Mix Additive Mix well and add Activator WB per the desired application. Do not add ready mix additive to mixed solid colors. 4 / 7

5 WB Spray Gun Set-Up Application Consult spray gun manufactures instructions for specific spray gun pressure specifications. Spray Gun Fluid Tip Application Pressure HVLP Gravity Fed mm <10 psi at cap High Transfer Gravity Feed mm psi at the air inlet Conventional Gravity Feed mm 45 psi at air inlet Solid colors Apply 2 single coats or until opacity is achieved. Flash off between coats by increasing airflow and or heat until the basecoat dries completely to a matt finish. Dry for a minimum of 15 minutes (max. 24 hours) at 75 F (24 C) and allow the surface to cool prior to clearcoat application. Metallic / Pearl Colors Apply 1 full coat, % closed. Next apply an intermediate coat, 80 % of the first coat, flash off between coats by increasing airflow and or heat until the basecoat dries completely to a matt finish. If necessary allow the surface to cool. When needed, apply an orientation coat. Increase the distance to approximately 12 to 14 inches and apply a light coat with no wet areas. Dry for a minimum of 15 minutes (max. 24 hours) at 75 F (24 C) prior to clearcoat application. Thorough drying after basecoat application is necessary. Spot repairs / fade out areas When making spot repairs apply thin coats until opacity is achieved. Dry until matt between each coat before fading out well beyond the edges. In case of metallic colors lower air pressure may be needed for color control. Extend each coat until coverage is obtained. Finally apply an orientation coats fading out well beyond the coverage coats. In the case of high hiding colors and fading out, the color transparency can be increased by adding MM 02 RTS to the RTS mixed color, at a ratio of parts color and 50 parts MM02. MM toner 02 may also be used as a clear foundation coat before commencing the spot repair. Apply one single coat of this first layer to allow for an easier orientation of metallic particles during the fade out. Film Thickness Using Suitable Application WB solid, metallic and pearl colors: mils. (10-20µm) The total dry layer thickness of WB should never exceed 1.2 mils (30 µm) 5 / 7

6 WB Drying / Curing Time Humidity and airflow will influence the WB flash off and drying times. These times can be reduced to a minimum by using air accelerator systems with a distance of 3 feet from the object, thus increasing the airflow over the object. When heat is used for drying, allow object to cool down to application temperature before proceeding with color or clearcoat application. Not recommended. Recoating Sanding / De-Nibbing Masking Cleaning of Equipment Theoretical Coverage Recoatable with Lesonal Clearcoats. Prior to clearcoat application: Minimum 20 minutes at 70 F (20 C) Minimum 15 minutes at 75 F (24 C). Maximum 24 hours at 75 F (24 C). After the final coat has normally flashed off, increase airflow for the 15 minutes at 75 F (24 C) Thorough drying after basecoat application is necessary. Should this maximum time be exceeded, abrade the surface and apply another coat. Allow WB to dry sufficiently, at least 20 minutes at 75 F (24 C). Then lightly dry sand the damaged area with #P600 to #P0 free-cut sanding paper. Thoroughly remove sanding dust residue before continuing WB application. WB colors can be taped (i.e. two toning) after 20 minutes flash-off at 75 F (24 C). Increasing temperature especially in combination with air movement improves the ability to apply masking on WB. Let the object cool down to ambient temperature before masking. Clean and rinse the spray gun thoroughly after use with Lesonal Guncleaner WB. Purge the spray gun with Lesonal Activator WB prior to WB use. Do not use any conventional thinner unless removing dried WB deposits. Do not soak the spray gun for long periods either with Lesonal Guncleaner WB. or Activator WB. Theoretical coverage is dependent of many factors. These may include; the shape of the object, surface smoothness, application technique and other application variables among others. +/- 167 m 2 /L of ready to spray material at a film thickness of 1 mil. 6 / 7

7 WB VOC / Regulatory Information The VOC content of this product in ready to use form is <3.4 lb. /gallon. (<407 g./liter) Product Storage Stock unopened or used products in approved closed containers with proper labeling. Store in moderate temperatures between 36 F - 95 F (2 C 35 C). Avoid too much temperature fluctuation. Optimum storage temperature is approximately 70 F (20 C). For optimal performance, allow the ready to spray material to reach application temperature before use. WB toners that have been frozen will contain gelling and lumps and can no longer be used. Most WB toners have a shelf life of 24 months with the expectations shown below. 2 years 22, 23, 37, 46, 52, 62, 190C, 191M, 192M, 193M, 194M, 195M 3 years 190P, 192P, 193P, 194P, 195P, 196P, 197P, 198P, 291P, 90P, 91P, 92P, 93P, 94P, 95P, 96P, 97P, 98P, 99P 4 years 12, 36, 49, 53, 65, 85, 9001, years 10, 14, 56, 61, 67, 81 1 Year Ready Mix Additive Hardener WB Lesonal Activator WB Guncleaner WB Degreaser WB 1 year 1 year 3 years 4 years 4 years AkzoNobel 1845 Maxwell Street Troy, MI USA Telephone: IMPORTANT NOTE The information in this data sheet is not intended to be exhaustive and is based on the present state of our knowledge and on current laws: any person using the product for any purpose other than that specifically recommended in the technical data sheet without first obtaining written confirmation from us as to the suitability of the product for the intended purpose does so at his own risk. It is always the responsibility of the user to take all necessary steps to fulfill the demands set out in the local rules and legislation. Always read the Material Data Sheet and the for this product if available. All advice we give or any statement made about the product by us (whether in this data sheet or otherwise) is correct to the best of our knowledge but we have no control over the quality or the condition of the substrate or the many factors affecting the use and application of the product. Therefore, unless we specifically agree in writing otherwise, we do not accept any liability whatsoever for the performance of the product or for any loss or damage arising out of the use of the product. All products supplied and technical advices given are subject to our standard terms and conditions of sale. You should request a copy of this document and review it carefully. The information contained in this data sheet is subject to modification from time to time in the light of experience and our policy of continuous development. It is the user's responsibility to verify that this data sheet is current prior to using the product. Coatings brand names mentioned in this data sheet are trademarks of or are licensed to AkzoNobel. Head Office AkzoNobel B.V., PO Box BA Sassenheim, The Netherlands. 7 / 7