What elements should be considered when designing coating formulations?

In actual production, the paint is always unqualified.
once again try and fumble, once again small and pilot, reflected in the spirit of the paint people perseverance and a love of paint.
many times, will also look back at those most basic knowledge, will think is not in the formulation design process, which factors have not been taken into account? Building a coating formulation that meets the requirements for practical use has been a long and complex issue.
, the following factors need to be taken into account when designing coating formulations.
1, coating objectives and purposes such as substrate materials, is high-grade products (such as cars, aircraft, precision instrumentation, etc.) or low-grade products (such as household appliances, internal and external walls, bridges, plastics, paper, etc.).
2, coating performance requirements are general decoration, or play a protective role, or give the coated object a special function, such as anti-corrosion, anti-fouling and so on.
Generally speaking, the performance of coating film has a certain degree of relativity, such as hardness and flexibility, adhesion and film-forming, hydroelestive and waterproof, corrosion-resistant and episode performance, therefore, the pursuit of a performance, will inevitably damage other performance, formulation design needs to find the balance of these performance points.
3, the use of the environment and construction environment such as indoor or outdoor, high or low temperature, dry or humid.
4, film-forming substances, i.e. the chemical properties and physical properties of resins, such as room temperature drying curing or reaction curing, softness/hardness ratio, and the bonding, weather resistance, UV radiation resistance, corrosion resistance and so on.
5, volatiles, i.e. the physicochemical properties of solvents and thinners, such as volatility rate, boiling point, solubility of resin, toxicity and flash point.
6, pigment properties such as coloring force, covering force, density and substation solubility (dispersion), light resistance, weather resistance and heat resistance.
7, the role of additives such as anti-sinking, anti-flow hanging, anti-orange peel, deblistering properties, to help pigment wetting dispersion, improve the construction of coatings and film-forming properties.
8, cost considerations including raw material costs, production costs, storage and transportation costs.
used in high-grade products of coatings, its performance requirements are higher, the price can be more expensive, for low-grade products, coatings, performance can be slightly worse, the price can be cheaper.
9, competitive factors clearly designed coating formula products are new products on the market or other companies already have similar products, if the latter, to compare the design of products and other products in terms of performance and price advantages, including the performance of the coating itself, such as solid content viscosity, density, PVC and storage period; Need to apply several times to meet the required performance requirements, is normal temperature drying or heating reaction curing into a film, paint film performance, such as softness / hardness ratio, adhesion, weather resistance, UV radiation resistance, acidity and alkalinity, chemical resistance, solvent resistance, stain resistance, temperature resistance and moisture resistance.
to determine whether a product is superior to existing similar products on the market in one or more major performance, or if the performance is similar but has a significant price advantage.
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, the convergence of all the great.