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Articles·Plasterer·Rules and safety

Epoxy and isocyanates: course requirement for plasterers

When should you have a training certificate before you may use the products

Some repair and surface treatment products in construction contain epoxy or isocyanates. Since 24 August 2023 there have been stricter training requirements from the Labour Authority before you can work with products containing these substances above a certain threshold.

§When does the requirement apply

The requirement applies to products where the content of monomeric isocyanates is at least 0.1% by weight. Both those who perform the work themselves and those who train or supervise the work must have completed the relevant education and have a valid training certificate.

§Basic training and supplementary training

There are two levels: a basic qualification which is mandatory for all work above the threshold and supplementary training for tasks with increased risk of exposure. According to the Occupational Health and Safety Authority supplementary training is not generally required for ordinary manual application with spatula brush roller or caulk gun at room temperature — but basic training is still a requirement regardless of the scope of the task.

§Why the rules exist

Isocyanates and epoxy can cause serious and chronic allergic reactions in skin and airways. In the worst case, repeated exposure can develop an isocyanate asthma that doesn't go away, even after you've stopped working with the substances. The training requirement is designed to ensure you know the risk and use the products safely from day one.

§How you explain a diagnosis so the patient understands

  • 01Search for vocational training courses in personal safety when working with epoxy and isocyanates
  • 02Several technical and vocational schools offer the course as a short targeted education
  • 03Ask your school or your trade union if you are in doubt about whether your certificate is still valid

A course certificate takes a short time to obtain - but it can save you from a health problem you carry with you for the rest of your life.