Possible causes and countermeasures of formaldehyde content exceeding standard in emulsion paint

Excessive formaldehyde content in latex paint may be caused by the following reasons:

1. Antiseptic and antifungal agents contain formaldehyde or release formaldehyde. The solution is to reduce the formaldehyde content of the antiseptic and antifungal agent, or use an antiseptic and antiseptic agent that does not contain formaldehyde or release formaldehyde. Of course, this is done at the risk of increased costs or loss of container headspace protection.

2. Formaldehyde is brought into the emulsion. The solution is to ask the supplier to reduce the formaldehyde content in the emulsion, or choose another emulsion with lower formaldehyde content. The national standard "Emulsions for Architectural Coatings" which is being submitted for approval has a limit of 0.08g/kg of formaldehyde in emulsions for interior wall coatings.

3. Its components bring in formaldehyde. For example, color paste, etc., find out the reason and solve it.

In addition, the detection of formaldehyde is one of the detection items required for architectural coatings, and the sample can be quickly detected by the formaldehyde Tester. The formaldehyde testing equipment provided by NBCHAO Mall can be used as a reference.