Idrosil Exterior - Silicate Paint
Mineral exterior silicate paint — ultra-matt, highly breathable, odourless, DIN 18363 compliant
Idrosil Exterior is a mineral exterior silicate paint from Licata — a micro-coating based on potassium silicates in aqueous dispersion and siliceous aggregates, compliant with DIN 18363. This silicate paint bonds chemically with the mineral substrate through natural silicatisation, combining exceptional vapour permeability with excellent water repellency. Mineral, odourless and ultra-low VOC — ideal for decorating new façades or restoring existing ones. Pigmentable to a wide range of colours.
Why specify Idrosil Exterior silicate paint?
Silicatisation — Chemical Bond with Substrate
Idrosil Exterior silicate paint does not just adhere to the substrate — it reacts chemically with the mineral surface through a natural process called silicatisation. This creates an insoluble bond that does not peel, blister or flake over time in the way organic paints can.
Very High Breathability
The potassium silicate base gives Idrosil Exterior exceptional vapour permeability — moisture moves freely out through the wall, preventing the trapped damp and interstitial condensation that causes organic paints to fail on breathable mineral substrates.
Water Repellent
Despite its high breathability, Idrosil Exterior repels liquid water — keeping rain off the façade whilst allowing water vapour to pass freely from inside to outside. Excellent whiteness is maintained even in exposed conditions.
Mineral, Odourless & Ultra-Low VOC
A truly mineral product — inorganic binders, odourless formulation and VOC content below 30g/L (DIN 18363, Cat A/c). Ideal for occupied buildings and sensitive environments where low-emission products are specified.
Pigmentable — Wide Colour Range
Idrosil Exterior silicate paint can be pigmented to the majority of colours in the licatasystemcolors EXTERIOR swatch — supplied in white and tinted to order. The ultra-matt finish delivers a natural, high-quality decorative result.
Versatile Application
The fine granulometry (<100 microns) means Idrosil Exterior silicate paint can be applied by brush, roller or airless spray — giving applicators full flexibility on site regardless of substrate type or access conditions.
Idrosil Exterior — Mineral Silicate Paint
Idrosil Exterior is Licata's mineral exterior silicate paint — a micro-coating based on potassium silicates in aqueous dispersion and siliceous aggregates, compliant with DIN 18363 regarding the purity of silicates. It combines high adhesion through chemical silicatisation with very high vapour permeability, making it ideal for both new build façade decoration and the aesthetic restoration of existing mineral surfaces.
As a fully mineral product, Idrosil Exterior silicate paint is odourless and ultra-low VOC — well within the requirements of European Directive 2004/42/EC for external wall coatings (Cat A/c, <30g/L). The ultra-matt finish and excellent whiteness give a natural, high-quality decorative result across the full licatasystemcolors EXTERIOR colour range.
Primer selection is important — apply Sil Primer on new or particularly absorbent substrates, and Primer Ocram when overpainting medium or strong existing colours. Both primers are designed to work as coupling bridges for silicate decorative coatings.
Where to use this silicate paint
Apply to cured substrates only — minimum 4 weeks. For substrates with existing organic paint, always apply Sil Primer or Primer Ocram as a coupling bridge before this silicate paint.
Idrosil Exterior silicate paint — technical specification
Preparing for silicate paint application
Applying Idrosil Exterior silicate paint
Buy Idrosil Exterior silicate paint
Available from all six Licata branches across the UK in 20kg buckets. Supplied in white — tinted to colour on request. Speak to our team about pricing and colour options.