BH0506 Surface Primer (mid-coating)

Bh-0506 Mid-coating paint(universal type)Consists of product:It is compound of high content polyester resin, acrylic resins, pigments, fillers, additives, solvents, and bh-1006a mid-coating curing agent according 4:1.Product features:Bh-0506a mid-coating paint has good filling and adhesion to a variety of primer - putty,and good polishing,can fill loose of last time scraping polishing layer, significantly improve the coating compactness. Can effectively prevent finish resin infiltration, improve fresh of the whole coating, and can promote the directional alignment of metal aluminum powder. And has strong adhesion to finish,,high hardness, favorable anti-stoning,etc.good water resistance and good chemical resistance.suitable for car finish of medium bus,big bus,etc. Play the role of the middle coating before metallic flash paint. Product technique index:ItemIndexTest methodPaint film color and appearanceLight gray,flatGb-1729Fineness(um)≤30Gb-6753.1Solid content % ≥60Gb-1725Viscosity(coat4#,25°C) ≥100Gb-1723Hardness (pendulum rod method)0.5Gb-1730Impact strengthkg.cm50Gb-1732Adhesion (circled method)1gradeGb-1720RubbingEasy to polish,non-stick sandpaper Gb-1770Water resistence(24h)No blistering, no peelingGb-5209Construction reference:1.before construction should use poly-putty find primer and polish smooth with 200 360 # sandpaper.2. Mix equality universal mid-coating the bh-0506a and bh-1006a mid-coating curing agent according to the ratio of 4:1 . Aging 20 minutes (room temperature), adjust viscosity with bh-1506a mid-coating thinner or bh-1502a finish thinner for 15 18 seconds (coat 4 # bh-1502a cup, 25 °C), spray the first filling mid-coating, 1-2 hours (completely surface drying), scrape thin gray to leveling, wet rub with 300 400 # sandpaper, spray the second filling mid-coating after drying , after 1to2 hours spray the directed layer (nitrocellulose lacquer: tianna water= 1:10) water rub with 600 mesh sandpaper and then scrape red gray water rub to dry.uniformly spray the third time mid-coating paintto close, after that lightly water rub with the 800-mesh sandpaper than come into finish construction.Notice:1. Should used mid-coating or finish thinner to clean tools.2. Sould allocate paint according amount of usage each time, the paint allocated into curing agent should be run out of in time (at 25 °C can use 4 5 hours), or will thicken scrapped.3. In the process of allocating paint and coating , is strictly prohibited to contact water, oil, acids, alkalis, alcohols, amines,etc, in order to avoid appearing adverse consequences.4. Generally dry conditions: room temperature (15 °C above) for more than 16 hours, bake for 40min at 60 °C.5. Since the date of production,effective storage period is one year.