Dekro Paints Paint Hygiene - Dekro Paints

Dekro Paints Paint Hygiene

Following a recent report from ACTi Chem SA (a leading multinational manufacturer and distributor of biocides, flame retardants, personal care ingredients and other speciality chemicals) regarding good paint hygiene we would like to share some key points regarding good paint hygiene practice for the end user.

Products that contain a large amount of water, have the potential to become contaminated and/or spoiled by microorganisms. For paint, chemical preservatives are used to prevent spoilage in the wet form whilst the paint is in the container.

Presently, only safe, biodegradable preservatives are used. Many years ago, harmful chemicals (like lead) that were not easily degradable were used, and as a result, they lasted for quite some time in the end products. Unfortunately, modern preservatives are not designed to last as long in the products that they are protecting. They also cannot cope with excessive microorganisms, which come from various sources like the air, water, mixing instruments or packaging, therefore, we must take steps to keep paints as “clean” or microbe-free as possible.

Steps to limit paint from spoiling after purchase:

Milk goes sour if not refrigerated after opening. It’s impractical to put paint in the fridge, but certain steps can be taken to prevent spoilage which can cause a bad odour and discolouration.

  1. Keep brushes clean. After use, rinse thoroughly and dry. Do not leave them in water for days at a time.
  2. Avoid partially using paint and resealing container – try to judge the correct quantity needed for the job and purchase accordingly.
  3. Avoid using wood to stir paint. If no alternative, clean implement with detergent before use.
  4. Do not use paint that has a foul odour, discolouration or major separation. A thin layer of water on top of the paint is normal, but something is wrong if more than half the paint is water.
  5. Use clean water to dilute. If unsure, boil the water first and allow to cool before use, e.g. in the case of borehole, river or rainwater.
  6. Rather responsibly discard small quantities of paint left in the container than re-use
  7. Use only cleaned, dry containers to decant, and decant only enough paint for the project. Avoid pouring paint back into the original container.
  8. Ensure original containers are tightly sealed before storage The information contained in this document is intended to be of assistance to users.

There are many other factors contributing to spoilt paint and always consult with your paint supplier regarding correct storage.