How to Prepare an Exterior Wall for Painting: Removing Biological Growth
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How to Prepare an Exterior Wall for Painting: Removing Biological Growth

Achieving a Smooth and Clean Finish

When preparing your exterior walls for painting, it's crucial to eliminate any biological contaminants such as algae, fungi, mould, and lichens. These growths can not only affect the appearance of your walls, but also compromise the paint's adhesion and longevity.

Introducing GK Concentrated Fungicidal Wash

GK Concentrated Fungicidal Wash is a specially formulated product designed to clean and sanitise internal and external hard surfaces before painting. It acts as a "decorator's mate," preparing surfaces for paint application by effectively removing any stubborn biological growth.

The formulation is self-neutralising, so it requires no washing or rinsing after use. Simply allow the solution to evaporate naturally, and your surface is ready for paint application as soon as it has dried. The formulation doesn’t contain any harmful chemicals, meaning your wall will not be damaged in the cleaning process.

GK Concentrated Fungicidal Wash is extremely forgiving, it can be used by anyone, regardless of how experienced you are. As long as you follow the dilution instructions and saturate the surface you can apply the solution with a watering can, a garden pump sprayer, a paint brush, a sponge, a trigger spray or even a roller, whichever suits you best.

Key Benefits of GK Concentrated Fungicidal Wash

Broad Spectrum Biocide: Targets and eliminates 99.9% of fungal and algal growth.

Self-Neutralising Formula: No need for rinsing. The solution evaporates naturally, leaving surfaces ready for painting.

Internal and External Use: Suitable for both indoor and outdoor surfaces.

Minimises Regrowth: Reduces the risk of future fungal growth in treated areas.

Acid and Bleach-Free: Safe for surfaces without damaging underlying materials.

How to Apply GK Concentrated Fungicidal Wash

GK Concentrated Fungicidal Wash is easy to use, with amazing results in just 5 simple steps:

Surface Preparation: Remove dirt, grease, and loose coatings. Scrape off any visible moss, lichen, mould, or algae.

Dilution: Mix 1 litre of GK Concentrated Fungicidal Wash with 4 litres of water to create a 5-litre solution.

Application: Apply the solution using a brush, roller, or spray in dry conditions.

Evaporation: Allow the solution to evaporate naturally. No rinsing required.

Repeat Application: For heavily infected surfaces, a second application may be necessary.

Safety Precautions

As with any cleaning product, we always advise that you take the necessary precautions to avoid causing harm to either yourself or the environment. You can download the technical sheet from our website for all relevant information about the product.

PPE: Wear appropriate personal protective equipment, including gloves and eye/face protection.

Plant Protection: If plants are nearby, protect them from accidental overspray with waterproof covers or by watering them thoroughly before applying the fungicidal wash. Rinse plants with water if overspray occurs.

Achieve a Professional Finish

By using GK Concentrated Fungicidal Wash to remove biological growth from your exterior walls, you can ensure a smooth, clean surface that is ideal for painting. This will not only enhance the appearance of your home but also protect it from future damage caused by these harmful contaminants.