Blue - Patina Finish
Transform your home with our Blue Patina Finish limewash. This natural, eco-friendly paint introduces depth and character to your walls, creating a dynamic and inviting atmosphere. The rich blue hue, combined with the patina finish, adds a unique and sophisticated touch to your interior design. Perfect for those who appreciate...
"How much paint do I need?" Use our surface calculator to fill the quantity selector above.
1 kg of paint covers approximately 125 ft² per coat. 1 coat is required to achieve the PATINA Light finish, 2 coats for PATINA Opaque finish. 1 kilo will cover 110–140 square feet in one coat and 55–70 square feet in two coats. (Ex: For a 100 ft² wall surface: buy 1 kilo of paint for PATINA Light | buy 2 kilos of paint for PATINA Opaque.)
Enter your total project area, or calculate based on wall dimensions.
Important notice about colour accuracy
Phone and computer screens display colours differently depending on their calibration and resolution. As such, the hue you see on your screen may not be an accurate representation of the true colour. Take a look here for more information.
If you're not sure about the colour, you can also :
- Order a 125g sample by selecting 125g (sample) size
- Get a hand-made colour swatch
Download COSI Technical Sheet PDF Download COSI MSDS PDF
PATINA Light: lightly textured matte mineral finish, randomly revealing the substrate to create a patina effect.
PATINA Opaque: lightly textured matte mineral finish, completely covering the substrate for an opaque finish

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Essential tools to achieve this finish
Frequently Asked Questions
No, limewash paints are sensitive to extreme cold and heat. The ideal temperature for use is between 7 and 27° C. And you can not apply lime coat when raining, make sure the weather forecast does not call for rain in the 48 hours following application.
For Patina Opaque wait a minimum of 6-8 hours between coats.Respect stipulated drying times. It is imperative to have a fully dry surface before applying the next coat if needed.
Cosi paint for Patina finish is 97% natural ingredients, virtually VOC FREE (less than 0.75gr/l.)
For Patina finish you need a limewash brush.
Cosi Paint for Patina finish can be used in interior and exterior.
You will receive all products you need to achieve the finish: COSI paint, quantity of pigment required for the chosen colour and quantity of primer & paint, how-to guide and technical sheet.
If you have added tools to your order, they will come in your package too.
For Patina Light you need only one coat of paint.
For Patina Opaque 2 coats are required and we recommend to tint both.