Coatings also have a shelf life and expired coatings

However, we all know that food and medicine have a shelf life. It will be quite dangerous to use it after the expiration of the period. Is there any shelf life for the decoration materials like paint ? Here are the answers for everyone:

Coatings also have a shelf life of about 1-3 years

In fact, consumers generally do not pay attention to its shelf life when purchasing paint, and some people do not know that the paint has a shelf life. Although paint has become one of the most common wall decoration materials, consumers are familiar with various brands and functional coating products, but the shelf life of coatings is easily overlooked by consumers.

In the production process, some materials that inhibit mold change will be added. The amount of these materials added will directly determine the shelf life of the paint. In addition, whether the water used to produce the coating is non-polluting will also affect the length of the coating shelf life. In general, the shelf life of paints is 1-3 years. Consumers are advised to purchase the paint in addition to the effect of the paint, but also pay attention to the date of manufacture and shelf life printed on the paint packaging, in order to prevent the purchase of products that have passed the shelf life or the expiration date.

Excessive performance of all aspects of expired coatings will be greatly reduced

High-quality paint can enhance the taste of the whole room and give the family life a richer connotation. However, the use of paints that exceed the shelf life may not only affect the decorative effect, but may also pose hidden dangers for future life.

In coatings that exceed the shelf life, the ingredients may change due to various factors, so that they do not achieve their intended function and function, and such deterioration is sometimes irreversible, even in the case of closed storage, the overall performance of the coating and Efficacy will also be affected. The coating itself is a mixture. If the shelf life is exceeded, the coating may have delamination, odor, agglomeration, etc., and the amount of bacteria contained in the coating will greatly exceed the normal level. If the use of expired coatings, there will be many paint film defects, such as the adhesion of the paint film is not strong, easy to fall off, cracking, bubbles, etc., so that the performance and internal performance of the coating is greatly reduced.

Although consumers are not recommended to use expired coatings, coatings that have a shelf life of more than one month can be tested in small areas without any abnormalities. If the paint exceeds the shelf life, you can stir it to see if there is obvious aging, odor, agglomeration, etc. If not, use it as appropriate.

Paint is not easy to store after opening

During the decoration, it is inevitable that the paint will not be used up after opening. Many consumers will save these paints for future use. In this regard, the preservation of the paint is also very particular, if the preservation method is not appropriate, it will directly affect the use of the remaining paint.

The paint should be used as much as possible within one month after opening, because the water-based paint may be contaminated by unclean water after being over-watered, and the roller material may cause rapid deterioration of the paint on the wall surface with mold microorganisms.

For unopened coatings, it is recommended to store in a ventilated, cool condition. Generally, the storage temperature of water-based paints is from 0 °C to 35 °C. In summer, coatings mainly need to pay attention to temperature and humidity. Most bacteria breed at 36 °C, and most molds grow fastest at around 28 °C. In addition, consumers are reminded that the summer sunshine is sufficient, and the paint must not be exposed to the sun for a long time, which will also cause the paint to deteriorate.

Expired coatings need to be recycled

Through the above, we learned that the expired paint can no longer be used, and also know the correct preservation method of the paint. But what about the deterioration of paint? Because the chemicals contained in the paint can pollute the environment, they cannot be thrown away. Since we can't throw it away and can't continue to use it, how should we deal with these expired paints? In fact, paint manufacturers will also have the problem of overstocking of products. For large quantities of expired coatings, they will be sent to chemical recycling companies for processing, but there is currently no recycling route for ordinary consumers on the market.

When coating companies promote their products, they will specifically label the words “green” and “environmental protection” to attract the attention of consumers. Then, while producing green paints and environmentally friendly paints, can paint companies continue to move forward on the issue of expired paint recycling?

We look forward to the day when, like the recycling box with the words “waste battery recycling”, there will be an “expired paint recycling bin” outside the paint supermarket.