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Metal Pretreatment Chemicals
Metal Pretreatment Chemicals 1) Pre-degreasing chemicals 2) Alkaline degreasing chemicals 3) Rust remover 4) Paint strippers 5) Trication phosphating chemicals 6) Calcium modified zinc phosphate coating chemicals 7) Accelerators 8) Three-in-one solution 9) Iron phosphate coating chemicals 10) Passivation chemicals 11) Nano-ceramic coating chemicals
Lab stirrer
Homogeneity is very important in any paint mixture. Before painting the components, the paint should be throughly mixed. In large scale production the painter may use lab stirrer for better mixing of paints with thinners.
ASTM Testing Methods for Coatings
Source: https://www.astm.org Testing methods for paint liquids Organic volatile contents – ASTM 3960 Viscosity of liquid paints – ASTM D5125 Hiding power of paints – ASTM D2805 Settling tendency of paints – ASTM1309 Grind gauge reading – ASTM 1315 Wet film thickness – ASTM D1212 Testing methods for painted components Salt spray corrosion resistance –…
Small lab set up for liquid paint testing
A small laboratory set up is required for any paint shop floor. By testing the liquid paints one can reduce rejections to the maximum level. A table with granite top is ideal for paint testing. Glass plates are need for testing the flow of any liquid paint. Set of graduated glass beakers Palette knives for…
Rust preventive compound yellow
Formulation guidelines Melt match wax = 25 kg Thin with wool grease (lanoline) = 100 kg. Cool and add mineral turpentine oil = 126 kg Yield: 300 Litres. Thin down with required viscosity. Specific gravity at room temperature 0.84
A very simple formula for brake fluid
Any one can make brake fluid by simple mixing. Raw caster oil = 250 ml Diacetone alcohol = 250 ml Mix them thoroughly without foaming. The brake fluid is ready.
Non-ionic Bowl Cleaner formula guideline
Formulation # Materials Weight % 1. Water 67.0 2. 78% Phosphoric acid – Industrial grade 4.0 3. Non-ionic surfactant* 0.5 4. Acid thickener 4.0 5. 37% Hydrochloric acid solution 24.5 Supply viscosity @ 20 deg C = 1750 cps pH = 1.3 Specific Gravity @ 25 deg C = 1.049 Bulk density @ 25 deg…
Lab testing methods for evaluation of a coating
Pigment testing as per IS 33 Solvent testing as per IS 82 Evaluation of paints and pigments Testing plastic and rubber components Salt spray resistance Humidity resistance Accelerated QUV weatherometer test Bend test Impact resistance test Water analysis Acid / alkali / fertilizer / water resistance tests Cross hatch test Glossmeter reading in 20 deg,…