Tips for using coloured pencils
1、Coloured lead is a kind of coloured lead, which is mainly composed of white lead, lead oxide, zinc oxide, tin oxide and other chemical components.
2, its nature is softer than white lead, due to the solid pigment on the surface, so it has colour, and can be painted with beautiful patterns.
3、Coloured lead has low coating cost, good zinc resistance and strong corrosion resistance, so it is a good choice for solving many engineering decoration problems.
1、Drying and cleaning:Before applying coloured lead, first of all, we should dry and clean the substrate, remove the grease on the surface, and try not to leave any traces, so as to reduce the possibility of peeling off after applying.
2, paint treatment: coloured lead is mainly applied to steel, aluminium alloy and stainless steel and other metal surfaces, it is best to use paint to treat the metal surface before painting to increase the wear resistance and corrosion resistance of the surface.
3、Coloured lead treatment:After the coloured lead is coated, it can be treated with solvents (petrol, alcohol, etc.) or powders (abrasive powder, polishing powder, etc.) and other tools to increase the gloss, corrosion resistance and abrasion resistance of the surface.
1、Preparation of insulating coatings:Prepare some moisture-resistant and heat-stable anticorrosive insulating coatings to prevent paint failure, as well as to prevent foreign water vapour and airborne oxides from eroding the surface.
2、Control evaporation:When coating, control the evaporation of coloured lead to reduce the oxidation reaction of the underlying paint and increase the toughness and viscosity of the coating.
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