Formulation and characteristics of elastic coatings

With the improvement of people's living standards, not only the quality of daily necessities is required higher and higher, but also the appearance effect of daily necessities is required higher and higher. Especially in some places where hands often touch, it is required to spray elastic hand paint, such as mobile phone case, mouse, MP3 appearance, hair dryer handle, umbrella handle and so on. It's no longer the original requirement that it doesn't matter if it is practical, cold, rough and hard to feel, but it makes people feel soft and comfortable, so the demand for elastic coatings is increasing. Let's take a look at this high-tech product.

Understand elastic coatings

Elastic coating is based on synthetic resin emulsion, with pigments, fillers and additives, and coated with elastic functional coating with a certain thickness, which can cover the fine cracks caused by gene expansion. This kind of coating not only has the protection and decoration function of ordinary coating, but also has the function of waterproof and covering cracks.

Formulation of elastic coatings

Binder: It can also be said that it is the film-forming substance of elastic coatings, which is the core of the formula and determines the basic characteristics of coatings. Resin emulsion is generally selected as the base material.

Additives: the choice of additives is also very important, mainly to assist the substrate to form a coating. Solvents are: curing agent (usually HDI type); Desiccant (usually ethyl ester) and matting powder.

Pigment: Common pigments include titanium dioxide, Luo Huang, etc. , plus general fillers, should be selectively added according to the requirements of the coating.

Solvent: It is best to choose some properties that are helpful for coating construction and improvement, such as propylene glycol as solvent.

Characteristics of elastic coatings

1. keeps high elasticity, toughness and elongation in a certain temperature range, and has good leakage resistance.

2. It has excellent water vapor permeability, and the coating film will not be blistered or peeled off due to the stress caused by moisture penetration.

3. It has good anti-carbon dioxide diffusion ability in the process of ultraviolet irradiation, so that the steel bar is not corroded and rusted.

4. Stain resistance, easy scrubbing, acid and alkali resistance, colorfastness, easy maintenance and repainting.

Now elastic coatings have been widely used in hotels, office buildings, entertainment and cultural places, schools, houses, hospitals and other large buildings, such as cement mortar surface, sandstone surface, gypsum board, wood plywood and other flat and rough base surfaces. Some are also used for surface coating, such as mobile phones and computer mice.

However, elastic coatings are easy to lose elasticity in the production process, which is extremely difficult to produce, so the cost of elastic coatings is still relatively high, so the price of really good elastic coatings is definitely much more expensive than that of ordinary elastic coatings. Therefore, friends must be cautious when choosing to buy elastic coatings. But ah, I believe that with the development of science and technology, elastic coatings will eventually develop as rapidly as ordinary coatings. Now as long as we choose more or know more when buying, we won't be fooled. Therefore, friends should use minibuses to learn more knowledge in the future!