BS 3900-G6

Assessment of the resistance of paints and coatings to fungal growth in accordance with BS 3900-G6.

Overview

BS 3900-G6 describes a standardised test method for assessing the resistance of paints and coatings to fungal growth.

The standard covers paints, varnishes and lacquers tested as individual coatings or within a multi-coat system.

Coated test specimens are incubated with fungi under defined conditions. Evaluation is qualitative, based on visual assessment of fungal growth on the coated surfaces.

Depending on your testing objective, sample type or requested test strains, we can assess whether project-specific adaptations to the test design are appropriate.

Typical applications

Coating development

Assessment of new paints and coatings for their susceptibility to fungal growth.

Material resistance

Comparison of coating systems for their resistance to fungal attack.

Product qualification

Assessment of coatings for applications with demanding requirements for resistance to fungal growth.

Frequently asked questions

What does BS 3900-G6 assess?

The procedure assesses the resistance of paints and coatings to fungal growth under defined test conditions.

Which products are suitable for BS 3900-G6 testing?

The procedure is suitable for paints, varnishes, lacquers and coating systems whose resistance to fungal attack is to be assessed.

How are the results evaluated?

Evaluation is qualitative and based on visual assessment of fungal growth on the coated test specimens.

What is the difference between BS 3900-G6 and ASTM D3273?

Both methods assess the resistance of coatings to fungal growth. ASTM D3273 specifically tests interior coatings in an environmental chamber. BS 3900-G6 defines a separate procedure for paints, varnishes and coating systems. The appropriate method depends on the product and the specified testing requirements.