Coo-Var Acid Etch | Chemical Concrete Etch Primer

• Surface Prep: Sweep away loose debris. Mask off surrounding areas to protect from splashes.
• Application: Dilute as recommended (if needed). Pour from a plastic watering can, scrub with a stiff brush.
• Dwell Time: Follow label instructions—allow the acid to react, dissolving salts and laitance.
• Rinsing: Thoroughly rinse with water. Allow the floor to dry before applying primer or paint.
• Pro Tip: Ensure proper ventilation and wear protective gloves & eyewear when handling acid-based solutions.

Need a step-by-step guide? Our experts are standing by—chat live now!

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.

Free Delivery on Orders Over £75: Stock up on everything you need in one go

• Floor Paints & Primers: Enhance adhesion on etched surfaces, especially for industrial coatings
• Degreasers & Cleaners: Prep surfaces even further if oily or contaminated
• Application Tools: Plastic watering cans, stiff brushes, protective gloves, and goggles

Ready to complete your kit? Chat with us for recommended extras!

Coo Var Acid Etch chemically prepares concrete and power floated floors, giving paint and screed a rough, porous key they can grip for years. The fast bubbling action saves costly grinding, speeds programme times and keeps production or DIY projects on budget. Backed by over one hundred years of surface prep expertise, it is arguably the most trusted chemical etch money can buy. Rival cleaners simply wash; this carefully blended acid and wetting agent actually restructures the surface so coatings never peel.

Key Benefits

• No Mess Prep: brush on, let it fizz and rinse away laitance, salts and dust without noisy machinery or airborne rubble.
• Superior Adhesion: etched pores lock primers deep into the slab, preventing costly delamination and customer complaints.
• Longer Coating Life: a bonded film resists tyre scuffs, forklifts and chemicals, stretching maintenance budgets further.
• Moisture Control Layer: removes contaminants that trap damp, helping floors cure evenly and reducing blister risk.
• Easy Application: mix one part etch with three parts water, apply with a broom and watch the reaction show you when it is done.

Apply today, rinse in minutes and you are ready to prime tomorrow; add to basket now, prep tomorrow and enjoy trouble-free floor painting with next-day UK delivery.

• Finish / Texture: Roughened concrete profile
• Base: Acid solution with wetting agents
• Available Colours: Thin clear liquid
• Pack Sizes: 5 L
• Coverage: Approx. 7 m² per litre (surface dependent)
• Drying Times @ 20 °C: Rinse immediately after bubbling stops; paint when surface is thoroughly dry
• Re-coat Interval: When surface is dry and neutralised
• Minimum Application Temp.: 10 °C
• VOC Content: Zero
• Flash Point: Non flammable
• Application Method: Dilute 1:3 with water, apply by brush, mop or watering can, agitate with stiff broom, rinse with clean water
• Surface Suitability: New or smooth concrete, power-floated slabs, render, laitance removal prior to any floor coating

Need detailed specs or prep guidance? Chat with our experts now and prep your floor tomorrow!

Safety data sheet
Technical data sheet

1. What is Coo-Var Acid Etch & Floor Cleaner used for?

Coo-Var Acid Etch & Floor Cleaner is a water-based acid solution designed to prepare bare concrete floors for painting. It removes salts, laitance, and light contamination, chemically etching the surface to improve paint adhesion—especially in high-moisture areas like swimming pools.

2. How do I apply the acid etch solution?

Use a plastic watering can to distribute the solution evenly on the floor. Then, work it into the surface using a stiff brush. Allow it to react as per the instructions, and thoroughly rinse once the etching process is complete.

3. Why choose acid etching over grinding or sanding?

Acid etching avoids the dust and mess associated with mechanical methods. It’s a quicker, cleaner approach that leaves a paint-ready surface without generating clouds of concrete dust.

4. Can it be used on damp floors or pool areas?

Yes. Coo-Var Acid Etch & Floor Cleaner is specifically formulated for high-moisture environments, such as swimming pool floors and damp concrete surfaces. This makes it especially useful where traditional grinding might be impractical.

5. How does it improve paint adhesion?

By removing laitance (the weak top layer of cement) and opening the pores of the concrete, the etched surface allows paint to bond more effectively. This results in a stronger, longer-lasting finish.

6. What coverage can I expect?

Coverage is approximately 7 m² per litre, although it can vary depending on the substrate’s porosity and condition. Very rough or contaminated surfaces may require more solution or repeated applications.

7. Are there any safety precautions?

Yes. Always wear protective gear (goggles, gloves, etc.) and ensure good ventilation during application. Avoid contact with skin or eyes, and follow all label instructions for safe handling and disposal.

Need more details on prepping concrete floors or choosing the right floor paint?

For personalised advice or additional information, contact our experts now via live chat—we’re here to help you achieve a dust-free, paint-ready surface!