NECOWEL 750 - ASK Chemicals

NECOWEL TM 750NECOWEL TMPolyol componentfor water based two component polyurethane systemsPropertiesNECOWEL TM 750 is a polyol component to formulate high quality two componentpolyurethane lacquers. Coatings based on NECOWEL TM 750 show good solvent-,weather- and yellowing resistance as well as high glossAs crosslinker HDI and IPDI based oligomeric polyisocyanates are recommended.Basically hydrophylic isocyanates specially designed for waterborne systems, as wellas common hydrophobic types can be used. Best results have been obtained by amixture of both. As usual in PU systems, an excess of crosslinker is recommended(e.g. 150 % isocyanate).In combination with appropriate hardeners film thicknesses of more than 100 µm canbe achieved without blistering.Technical dataSolid content: 42 – 44 %Oil length: ca. 18 %Type of oil:peanut oilViscosity: 2.0 – 5.0 Pa.s, 25 °CpH-value: 7.3 – 7.7Hydroxyl content: 3.1 – 3.5 %Neutralizer:TEASolvent:waterApplicationTwo component polyurethane systemsPackaging and storagePackaging: 180 kg drums │ 900 kg IBCStorage: Protect from freezingMinimum shelf life: 6 months in closed original packagingRemarksDetailed health and safety information please find in the corresponding material safetydata sheet.The information contained herein is correct to the best of our knowledge. Therecommendations or suggestions contained in this bulletin are made without guaranteeor representation as to results. We suggest your own laboratory tests prior to use. Ourresponsibility for claims arising from breach of warranty, negligence, or otherwise islimited to the purchase price of the material.Reviewed September 2013Resins & SpecialtiesSpecialties@ask-chemicals.comASK Chemicals GmbH | Reisholzstr. 16-18 | 40721 Hilden | Tel. +49 211 71103-0 | www.ask-chemicals.com

NECOWEL TM 750NECOWEL TMStarting formulationCode No.: 9081 2 C Clear coat based on NECOWEL TM 750Composition Position Product Wt.% SupplierA NECOWEL TM 750 70.00 ASKB Tego Twin 4000 0.50 EvonikC Demin. water 29.10D Tafigel Pur 41 0.40 Münzing100.00ProcedureMix position A – D under stirring.Curing Mixing ratio = 4:1 p.b.wt. with ASK-Hardener 8382Code No.: 8382 ASK Hardener 8382A Bayhydur XP 2655 80% BayerB Butylglykolacetat 20%Test results Substrate cold rolled steelGloss > 85 (Gardner 20°)Hardness (König)140 secCross cut test Gt 0-1Cupping test /(Erichsen) 6.0 mmResins & SpecialtiesSpecialties@ask-chemicals.comASK Chemicals GmbH | Reisholzstr. 16-18 | 40721 Hilden | Tel. +49 211 71103-0 | www.ask-chemicals.com

NECOWEL TM 750NECOWEL TMStarting formulationCode No.: 9080 2 C Top Coat based on NECOWEL TM 750Composition Position Product Wt.% SupplierA NECOWEL TM 750 60.00 ASKB Tego Twin 4000 0.50 EvonikC TiO 2-Paste #8232 36.00D Demin. water 3.30E Tego Visko Plus 3030 0.20 Evonik100.00ProcedureMix position A – E under stirring.Curing Mixing ratio = 5:1 p.b.wt. with ASK-Hardener 8382Code No.: 8382 ASK-Hardner 8382A Bayhydur XP 2655 80% BayerB Butylglykolacetat 20%Code No.: 8283TiO 2-PasteA Demin. water 18.30B Tego Dispers 755 W 10.00 EvonikC Tego Foamex 805 1.00 EvonikD Kronos 2310 70.00 KronosE Aerosol 200 0.50 EvonikF Acticide MBS 0.20 Thor100.00ProcedureMix position A – F under stirring and disperse with dissolver orpearl / sand mill.Test results Substrate cold rolled steelGloss> 85 (Gardner 20 °C)Hardness (König)121 secCross cut test Gt 0-1Cupping test (Erichsen) 5.5 mmResins & SpecialtiesSpecialties@ask-chemicals.comASK ASK Chemicals Chemicals GmbH GmbH | | Reisholzstr. 16-18 16-18 | 40721 | 40721 Hilden Hilden | Tel. | Tel. +49 +49 211 211 71103-0 71103-0 | | www.ask-chemicals.com