Using Water Repellent Long term Protection Against Damp and Staining

Posted in Firwood Hints and Tips by Firwood Paints on January 26th 2016
The rain just keeps on coming at this time of year and not only does the ground get soaked, but buildings do too. 2015 has definitely been a wet one for many areas of the United Kingdom and this takes its toll on buildings. Using fluorocarbon technology, Firwood 2620 Water Repellent is a translucent liquid water repellent that dries clear and has been developed for the long-term protection of walls, floors, patios, brick, stone and pavements for both internal and external environments.

Protect Stone & Brickwork With High-Performing Water Repellent

Damp slowly permeates through stone and brickwork during colder months, making the surface prone to damage by frost. Internal decorations can also be damaged through heat loss as insulated properties are compromised.

Luckily, a simple solution is at hand in the form of maintenance paint called 'Firwood 2620 Water and Dirt Repellent'. This is not a solvent based silicone found in some water repellents, but is a water fluoropolymer that withstands dirt, stains and damp.

Once dry the sealant provides:

  • Oil and water repellency
  • Protection from staining
  • A breathable surface allowing moisture out by not forming a sealed film
  • A natural appearance that is non staining to stone, concrete bricks and masonry
  • An easily maintained surface
It forms a protective layer over building surfaces, and is capable of shedding water rapidly, further protecting it. It can be applied simply by using a portable spraying apparatus, such as a garden sprayer. Users are advised to wear a spray mask and gloves so as to prevent inhalation of the water repellent and contact with skin, and, as with most types of paint, it is best applied to dry surfaces. It is available from stock in 5 litre tubs, or for larger projects, 25 litre drums.

Tested For Water Repellence And Stain Resistance

Firwood 2620 Water Repellent has been internally tried and tested for both repellence and stain resistance. Here's what we found:

Water Repellence Test

Firwood 2620 Water Repellent was applied to one half of a wall and the other half left untreated. Once the product had dried, water was sprayed evenly across the wall using a hose pipe.

The results: The image below shows that the treated part of the wall repelled the water and the untreated side remained wet and absorbed the water.

Stain Resistance Test

Compared with solvent borne silicone based water repellents, Firwood's specialist paint has the added advantage of repelling oils and stains, while also making surfaces easier to clean.

The concrete slab below has been divided into two halves. The right side has been treated with Firwood 2620 Water and Dirt Repellent and the left side left untreated. An equal amount of the liquids listed below were spilt on both sides of the slab:

  • Sunflower oil
  • Ketchup
  • Brown Sauce
  • Red Wine
  • Coffee
  • Tea
  • Mayonnaise
  • Vinegar

As you can see, the untreated side immediately began to absorb the spillages to a much greater extent than our treated slab. Both sides of the concrete slab were cleaned using clean, cold water. The un-treated side absorbed the liquids and stained the concrete, while the treated side offered outstanding protection against the stains, leaving almost no traces of the liquids!

Protect Your Surfaces With Firwood Water Repellent

We have a great range of exceptional maintenance paint to protect surfaces here at Firwood, perfect for commercial or residential applications. If you require more information about our products, please don't hesitate to contact our expert customer care team on +44 (0)1204 525231 today. Alternatively, you can send us a message to

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