What are the general tests for paints and coatings?

Aging test: salt spray aging, high and low temperature cycle, light aging, ozone aging, artificial accelerated aging and other aging projects.

Formula reduction: refers to the analysis of components, elements or raw materials of products or samples, also known as formula reduction.

Composition analysis: Through qualitative and quantitative analysis methods, the composition, element content and filler content of coatings can be accurately analyzed.

Life assessment: coating life, salt spray, damp heat, light aging, chemical corrosion aging, etc.

Physical properties: state, appearance, transparency, whiteness, color, adhesion, viscosity, fineness, ash, PH value, flash point, density, hardness, volume solid content, nonvolatile content, storage stability, contrast ratio, outflow time, back viscosity, safety and fire prevention, etc.

Chemical properties: weather resistance, wear resistance, acid and alkali resistance, gasoline resistance, impact resistance, color bleeding resistance, water resistance, damp heat resistance, volatile oil resistance, pollution resistance, salt spray resistance, temperature denaturation resistance, pollution resistance, washing resistance, boiling water resistance, detergent resistance, solvent wiping resistance, etc.

Construction performance: hiding power, usage, consumption, drying time (surface drying and hard work), paint film polishing, leveling, sagging, paint film thickness (wet film thickness, dry film thickness), paint film heating test, scratch test, etc.

Detection of harmful substances: VOC, formaldehyde, benzene, toluene, xylene, free TDI, PAHs, ethylbenzene, total xylene, free formaldehyde content, total TDI and HDI content, ethylene glycol ether, lead, mercury, chromium, cadmium, heavy metal detection, ROHS EN7 1-3, ASTM F963, etc.

Electrical properties of coatings: conductivity, breakdown voltage or strength, insulation resistance, dielectric constant and dielectric loss.