What should be paid attention to in the use of paint preservatives?
Paint preservatives are characterized by high efficiency in killing bacteria, fungi, yeasts, and low dosage; good compatibility with paints, emulsions and other materials; easy to dilute with water, and easy to add paint, coatings and emulsions or In other similar materials; when pH≤9, it is stable.
In order to prevent the paint from deterioration and loss due to improper use of preservatives, when using preservatives in paints, attention should be paid to adding sufficient amounts of preservatives; due to the small amount, it is necessary to stir evenly during use to prevent improper mixing. Evenly affect the anti-corrosion and sterilization effect; pay attention to the alkali resistance of the preservative; seal the finished package to avoid the exchange of the paint in the packaging barrel with the outside air, so as to avoid secondary pollution and lead to the deterioration of the paint; select qualified paint raw materials.
The antiseptic must be under certain conditions to play the role of antiseptic. For example, the commonly used preservatives, isothiazolinones, should avoid contact with strong alkaline and reducing metals such as iron and aluminum. If the container containing ammonia water or pH regulator should be cleaned before use or avoid using it, if the coating with strong alkalinity should choose suitable alkaline preservative.
