The paper presents the results of research on the impact of the amount of dye on selected commercially silicone pressuresensitive
adhesives. The effect of dye addition of 0.5-3.0% wt. on useful properties of adhesives was investigated. Increasing the
dye concentration caused a decrease in cohesion, stickiness and adhesion, and an increase in viscosity over time. Investigating the
effect of the dye was caused by frequent requirements in industry, where it is required to improve the visibility of joints. It is used,
for example, for bonding adhesive materials with low surface energy.