Juno Primerlite Masonry Primer Reviews

Professional Primer for Breathable Façade Systems This high-performance primer is engineered using Pliolite resins and premium pigments, offering exceptional adhesion to porous surfaces. It provides a breathable, alkali-resistant foundation ideal for both internal and external substrates. Its formulation ensures a long-lasting base for all subsequent coatings, including decorative paints and wallcoverings. Where It’s Used Suitable for use on exterior and interior surfaces such as: Façades and partitions Render, cement and concrete walls Porous mineral substrates This primer is ideal when a permeable coating system is required to resist weathering and structural salts. Key Technical Properties Matt white finish Touch dry in 2 hours Recoatable after 8 hours (no sanding required) High penetration and adhesion on porous and mineral substrates Efflorescence and salt barrier protection Active resistance to alkalinity Solvent-based (Juno D-40 recommended for thinning) Application Guidelines Ensure surfaces are dry, clean, and free from salts, dust, and mould. New concrete or cement-based substrates may require neutralising with 10% hydrochloric acid. Powdery or unstable surfaces should first be stabilised using Hidrocril. For previously painted substrates, remove gloss via sanding to promote adhesion. Damaged coatings must be completely removed before application. Application may be carried out using brush, roller or spray. Stir thoroughly before use. If needed, dilute depending on the porosity of the surface. Environmental and Safety Considerations Do not apply when substrate temperature is below 5°C or when humidity exceeds 80%. Application should not be carried out in direct sun, strong winds, or where there is risk of rain. Ensure good ventilation during use. Avoid open flames or ignition sources. Personal protective equipment must be worn. Dispose of residues and containers responsibly through authorised waste management services. Do not discharge into drains or the environment. Additional Advice Always refer to the downloadable technical datasheet for full application details, preparation requirements, health and safety information, and product limitations. Consult Rawlins' technical support for further guidance on specific project needs.