Primer suitable for the construction of rough bases and as a coupling agent made with the purest natural hydraulic lime and dolomitic aggregates with a constant grading curve of 0-2 mm. The chemical and physical characteristics of lime guarantee excellent adhesion to surfaces, preventing the formation of mould and significantly contributing to regulating humidity in walls and interiors and providing benefits in terms of indoor comfort.

OPUS RIN is used as a coupling agent on all masonry substrates that, due to their nature (water absorption, roughness, elasticity) may cause poor adhesion, such as: concrete, wood-magnesium panels, plasterboard, existing hydraulic binder-based plaster and in all cases requiring higher-quality preparation of the base coat for successive applications. The use of OPUS RIN favours the adhesion of successive layers and contributes to regulating the water absorption of the surface. OPUS RIN has been optimised to maximise compatibility with period masonry and is particularly suited to restoration works.