Fluxaf Mould & Mildew Remover - Bleach-Free Biodegradable Mould Cleaner for Interior & Exterior Surfaces

• Remove mould and mildew from interior or exterior surfaces before painting with anti-damp paint, anti-condensation paint, or masonry paint

• Clean mould, mildew, and green algae from bathroom tiles, grout, silicone sealant, masonry, patios, timber, or decking

• Use a bleach-free formula that won't discolour grout, damage silicone, or bleach surrounding surfaces

• Use a zero VOC, non-flammable, biodegradable cleaner safe for enclosed spaces including bathrooms and kitchens

• Apply a ready-to-use mould remover with no mixing or dilution required

• Remove green algae and biological growth from exterior patios, paving, render, and masonry without a pressure washer

• Use as a long-term mould prevention treatment — Fluxaf removes existing mould; address the source of moisture and apply anti-damp or anti-condensation paint for long-term prevention

Fluxaf Mould & Mildew Remover is a professional-grade, bleach-free, biodegradable cleaner that eliminates mould, mildew, and green algae from interior and exterior surfaces in just 5 minutes — making it the ideal preparation treatment before applying anti-damp paint, anti-condensation paint, masonry paint, or any other coating where mould or mildew is present.

Unlike harsh bleach-based mould removers that can damage surfaces, discolour grout, and produce harmful fumes, Fluxaf's biodegradable aqueous formula is zero VOC, non-flammable, and safe for use in enclosed spaces including bathrooms, kitchens, and boat cabins — with no harsh chemical fumes and no risk of bleach damage to surrounding surfaces.

For painting projects, the correct sequence is: 1) apply Fluxaf to remove all mould and mildew, 2) rinse thoroughly and allow to dry, 3) apply your chosen paint system — anti-damp paint, anti-condensation paint, masonry paint, or interior emulsion. Applying paint over active mould without treating first will result in mould growing back through the paint system.

Fluxaf is also highly effective for cleaning green algae, lichen, and biological growth from exterior surfaces — patios, paving, render, masonry, timber fences, decking, and garden furniture — without the need for a pressure washer.

Ready to use straight from the 500ml trigger spray bottle — no dilution, no mixing, no specialist equipment. Spray, leave for 5 minutes, and rinse with water. For heavily stained areas, light scrubbing or a second application may be required. Coverage of 5–10 m² per 500ml depending on severity of staining. Minimum application temperature 10°C. 3-year shelf life.

Key Benefits:

• Eliminates Mould & Mildew in 5 Minutes – Fast-acting formula penetrates and breaks down mould and mildew stains in just 5 minutes. Spray, wait, rinse — no scrubbing required for most applications. Professional-strength cleaning power in a ready-to-use spray bottle.

• Bleach-Free Formula – Unlike bleach-based mould removers, Fluxaf won't discolour grout, damage silicone, or bleach surrounding surfaces. Safe for use on tiles, grout, silicone sealant, timber, and masonry without risk of bleach damage.

• Essential Pre-Paint Treatment – Remove all mould and mildew before applying anti-damp paint, anti-condensation paint, masonry paint, or any interior or exterior coating. Painting over active mould without treating first will result in mould growing back through the paint system.

• Cleans Green Algae & Exterior Biological Growth – Highly effective for removing green algae, lichen, and biological growth from exterior patios, paving, render, masonry, timber fences, and decking. No pressure washer required.

• Zero VOC — Biodegradable – Zero VOC, non-flammable, biodegradable aqueous formula. No harmful fumes — safe for use in enclosed spaces including bathrooms, kitchens, and boat cabins. Eco-friendly alternative to bleach-based cleaners.

• Ready to Use — No Dilution – Ready to use straight from the trigger spray bottle. No mixing, no dilution, no specialist equipment. Spray, wait 5 minutes, rinse.

• Wide Surface Compatibility – Suitable for bathroom tiles, grout, silicone sealant, masonry, render, patios, timber, decking, sheds, boats, and caravans. Interior and exterior use.

• 3-Year Shelf Life – 3-year shelf life when stored correctly. Cost-effective for occasional use — one bottle ready when you need it.

Remove mould before it causes bigger problems. Add to basket now and treat mould today.

Fluxaf Mould & Mildew Remover is the professional bleach-free mould treatment for a wide range of interior and exterior surfaces:

• Pre-Paint Mould Treatment – Essential preparation before applying anti-damp paint, anti-condensation paint, masonry paint, or any interior or exterior coating where mould or mildew is present. Remove all mould with Fluxaf, rinse, allow to dry, then apply your chosen paint system. Painting over active mould without treating first will result in mould growing back through the paint.

• Bathroom & Kitchen Surfaces – Ideal for removing mould and mildew from bathroom tiles, grout, silicone sealant, and kitchen surfaces. Bleach-free formula won't discolour grout or damage silicone. Zero VOC — no harmful fumes in enclosed bathroom and kitchen spaces. Spray, wait 5 minutes, rinse.

• Exterior Patios & Paving – Great for removing green algae, lichen, and biological growth from patio slabs, paving, and external concrete surfaces. No pressure washer required — spray, leave 5 minutes, rinse with a hose. Effective on heavily stained exterior surfaces.

• Exterior Masonry & Render – Perfect for treating mould and green algae on exterior masonry, render, and stone walls before repainting. Essential preparation before applying masonry paint or exterior coating. Removes biological growth that would otherwise grow back through the paint system.

• Timber Surfaces – Suitable for removing mould and mildew from timber decking, fences, garden furniture, and sheds. Bleach-free formula safe for use on timber without risk of bleach damage or discolouration.

• Marine & Leisure – A must-have for removing mould from boat cabins, caravans, and motorhomes. Zero VOC formula safe for use in enclosed marine spaces without harmful fumes. Effective on fibreglass, timber, and hard surfaces in marine environments.

If you need further advice on using Fluxaf Mould & Mildew Remover for your project, contact our experts now via the live chat for personalised guidance!

Coverage: 5–10 m² per 500ml trigger spray bottle (severity dependent)

Coverage varies significantly depending on the severity of mould staining and surface porosity:
• Light mould staining: Up to 10 m² per 500ml
• Heavy mould staining: 5 m² or less per 500ml

Example Calculations:

Small Bathroom (walls & ceiling — approx. 5 m²):
• Light staining: One 500ml bottle
• Heavy staining: One to two 500ml bottles

Medium Room (walls with mould — approx. 10 m²):
• Light staining: One 500ml bottle
• Heavy staining: Two 500ml bottles

Exterior Patio or Masonry (approx. 15 m²):
• Light green algae: One to two 500ml bottles
• Heavy biological growth: Two to three 500ml bottles

For accurate project planning, assess the severity of mould staining before ordering. Order extra for heavily stained or porous surfaces.

Important: Apply at minimum 10°C. Leave for 5 minutes before rinsing. For heavily stained areas, light scrubbing or a second application may be required. Allow surface to dry completely before applying any paint or coating.

Important Notes:

Bleach-free, zero VOC, non-flammable, and biodegradable. Safe for use in enclosed spaces. Wear appropriate PPE including gloves and eye protection during application. Ensure good ventilation during application and rinsing.

Surface Preparation:

• Brush or wipe away loose debris, dust, and surface dirt
• Remove any loose or flaking mould growth with a brush or cloth
• Ensure the surface is accessible for spray application

Application:

Step 1 — Spray:
• Apply in temperatures above 10°C
• Spray Fluxaf evenly and generously onto all mould and mildew affected areas
• Ensure complete coverage of all stained surfaces
• Ready to use — no dilution or mixing required

Step 2 — Leave to Work:
• Allow Fluxaf to dwell on the surface for 5 minutes
• The formula will penetrate and break down mould and mildew stains during the dwell time
• For green algae and exterior biological growth, allow up to 10 minutes dwell time

Step 3 — Rinse:
• After 5 minutes, rinse thoroughly with clean water
• For stubborn staining, lightly scrub with a brush before rinsing
• For heavily stained areas, a second application may be required
• Rinse all treated surfaces thoroughly to remove all product residue

Step 4 — Dry & Paint (if painting):
• Allow the surface to dry completely before applying any paint or coating
• For interior walls: apply anti-damp paint or anti-condensation paint once dry
• For exterior masonry: apply masonry paint or exterior coating once dry
• Do not apply paint over damp or wet surfaces

Common Recommended System Products:
• Anti-Damp Paint – Apply after treating mould on damp walls
• Anti-Condensation Paint – Apply after treating mould on condensation-affected walls and ceilings

• Finish / Texture: Clear liquid
• Base: Biodegradable aqueous solution
• Available Colours: Clear
• Pack Sizes: 500 ml
• Coverage: Dependent on staining and porosity
• Drying Times @ 20 °C: Acts in 5 mins; surface usable after rinse
• Re-coat Interval: N/A (cleaner)
• Minimum Application Temp.: 10 °C
• VOC Content: 0 g/L (solvent-free)
• Flash Point: Non-flammable
• Application Method: Ready-to-use trigger spray; wipe or brush, then rinse with water
• Surface Suitability: Bathrooms, showers, grout, timber, masonry, patios, sheds, boats, campers (not for painted finishes)
• Shelf Life: 3 years in unopened container (10–35 °C storage)

Need detailed specs or prep guidance? Chat with our experts now and remove mould tomorrow!

How quickly does Fluxaf work?

Fluxaf works in just 5 minutes. Simply spray onto the affected area, allow the formula to penetrate and break down mould stains for 5 minutes, then rinse with water. For heavily stained areas, you may need to lightly scrub or apply a second treatment.

Is Fluxaf safe to use indoors?

Yes, Fluxaf is completely safe for indoor use. It's bleach-free with zero VOC (volatile organic compounds), so there are no harsh chemical fumes. It's ideal for bathrooms, kitchens, and other enclosed spaces. We recommend ensuring good ventilation during application.

What surfaces can I use Fluxaf on?

Fluxaf is suitable for tiles, grout, silicone sealant, timber, masonry, patio slabs, concrete, and most hard surfaces. It's effective on both interior and exterior surfaces including bathrooms, kitchens, decking, patios, boats, and caravans.

Is Fluxaf environmentally friendly?

Yes, Fluxaf is biodegradable and contains zero VOCs, making it an eco-friendly alternative to harsh bleach-based cleaners. It's safe for the environment while still delivering professional-strength cleaning power.

Do I need to dilute Fluxaf before use?

No, Fluxaf comes ready to use in a convenient spray bottle. Simply spray directly onto the affected area - no mixing or dilution required.

Will Fluxaf damage my surfaces?

Fluxaf is formulated to be safe on tiles, grout, silicone, timber, and masonry when used as directed. Unlike bleach, it won't discolour or damage most surfaces. Always test on a small inconspicuous area first if you're unsure.

How long does a 500ml bottle last?

Coverage depends on the severity of mould and surface area, but a 500ml bottle typically treats 5-10 square metres. For light mould staining, one bottle can treat multiple bathroom surfaces.

Can I use Fluxaf to prevent mould returning?

Fluxaf removes existing mould and mildew stains. For long-term prevention, ensure good ventilation, address moisture sources, and consider regular cleaning with Fluxaf to prevent mould regrowth.

Is Fluxaf suitable for commercial use?

Absolutely. Fluxaf is trusted by property managers, builders, hospitality businesses, and marine professionals. It's professional-strength and cost-effective for commercial cleaning applications.

What's the shelf life of Fluxaf?

Fluxaf has a 3-year shelf life when stored properly in a cool, dry place. The bottle is clearly marked with manufacturing and expiry dates.

Safety data sheet
Technical data sheet

Complete Your Mould Treatment & Painting System:

• Anti-Damp Paints – Apply after treating mould on damp walls for long-term damp protection

• Anti-Condensation Paints – Apply after treating mould on condensation-affected walls and ceilings

Need help choosing the right paint system after mould treatment? Contact our experts via live chat!

Fast, Reliable & Fully Tracked UK Delivery

Every order is dispatched from our warehouse using a fully tracked DX or FedEx service, so you always know when your paint will arrive.

Delivery Options

• FREE Standard Delivery (orders over £75) Arrives in 2–3 working days
• Standard Delivery – £7.95 Arrives in 2–3 working days
• Express Delivery – £13.95 Next working day delivery when you order before 12:00 noon (Mon–Thu)
• Spending £75+? Select Express Upgrade at checkout and only pay the difference

Dispatch & Delivery Times (What Happens After You Order)

• Express delivery (order before 12:00 Mon–Thu) Dispatched same day, delivered next working day
• Standard delivery (Mon–Wed orders) Dispatched next working day, delivered 2–3 working days later
• Orders placed Thursday (standard delivery) Dispatched Friday for Monday delivery
• We do not dispatch or deliver on weekends or UK bank holidays

What to Expect on Delivery

Please provide a contact telephone number at checkout. This allows the courier to share tracking updates or contact you if there are any delivery issues.

Most orders require a signature on delivery. If you may not be available during the day, we recommend delivery to a workplace, business address, or another location where someone can sign.

Outside the UK Mainland?

Delivery prices shown apply to UK Mainland only.

For the Highlands, Islands, Northern Ireland, or non-mainland addresses, please contact us for a quick personalised quote via live chat, by calling 01482 222 421, or emailing info@specialistpaintsonline.co.uk.

Bottom Line

Order today, get fast and reliable delivery, track every step, and get painting without delays.