Spray cork – application

spray cork wall

As building science advances, we try to use the latest technologies to find the right solutions. Sometimes this technology can mix old and new ways, and it doesn’t have to be toxic. A spray cork – application is an excellent example of an innovative and proven solution for building exterior cladding, thermal insulation and waterproofing using old, natural building materials.

Spray cork – application is an alternative to paint or stucco with a mixture of 80% cork granules and 20% water based paint available in many color variations. The spray cork looks very much like stucco. Its surface is structured and feels soft. It is very similar to the paint, only denser. It comes in as many colors as any color, and you can tint it too.

You can use a spray cork on almost any surface that you paint with traditional paint. You can spray it directly on all kinds of exterior walls of your house. The cork structure also creates a nice non-slip surface, making it perfect for patios and walkways. Cork does not feel as hot as masonry and stone, making it ideal for pool decking. As an alternative to spray foam, you can also use a spray plug in the recesses of the inner walls to seal air holes.

Unlike closed-cell foam, spray cork is breathable and allows moisture vapor to pass through, allowing it to dry faster. This application method can also protect wooden walls from mold and rot by acting as a protective binder on the wood. The spray cork can also be applied directly to interior walls if you like this interior style.


Cork is a highly renewable resource, typically sourced from government-protected forests certified by the Forest Stewardship Council – the Forest Stewardship Council (FSC) in Portugal. Tree bark is harvested every nine years for 150-250 years. Gathering cork does not harm the trees. Additionally, the granules used in aerosol corks are typically waste by-products of the cork stopper industry.

The spray cork is a mixture of 80% cork granules and 20% water-based paint, applied with a spray gun and compressed air. Because spray cork contains 80% cork, it reduces the release of microplastics from paint degradation. Compare this to other elastomer paints that use more synthetic compounds instead.

The sprayed cork closes gaps and air leaks very well and a tight building is a big step towards a thermally efficient building. A spray cork can be applied to any properly prepared surface – stucco, steel, aluminum, wood, brick, vinyl, clapboard and others. You can use it on a variety of surfaces.


Debris and dust rarely stick to the cork surface and when they do occur the surface can be washed off. After ten years, like any paint, the finish can fade in the sun and may need to be reapplied. A spray cork has seemingly endless benefits. As a renewable raw material and building material, it is an attractive choice for a wide range of applications. It is used in many applications as it adheres to wood, metal, plastic and concrete and is used both inside and outside buildings. Works in any climate; It is resistant to UV rays, atmospheric agents and hail, high and low temperatures, abrasion, fungi and mold.

It’s even fireproof, meets European E-class standards and doesn’t emit any toxic fumes when smoldering. Cork can increase the fire resistance of a building’s exterior in fire-prone regions. The sprayed cork contributes to the thermal insulation of the structure, seals air gaps in the building and absorbs sound. Attaching a spray cork to the outside of a building is an easy way to easily insulate an existing finished structure. The spray cork repels water (making it difficult for the masonry to absorb water) while remaining breathable, allowing steam to penetrate. When the walls are worn you can spray them with a spray cork, saving labor and money and reducing construction waste. It won’t crack and is more flexible than paint and stucco. It is hypoallergenic and self-cleaning as sediment and dust do not stick to its surface as easily.


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