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Coo-Var Swimming Pool Paint Thinners - Solvent Thinner & Brushwash for Coo-Var Swimming Pool Paint

by Coo-Var

Thin Coo-Var Swimming Pool Paint to the ideal brushing or spraying viscosity and clean application tools with Coo-Var Swimming Pool Paint Thinners, a slow-evaporating aromatic hydrocarbon solvent formulated specifically for use with Coo-Var Swimming Pool Paint, keeping a wet edge in warm weather and preventing lap marks for a glass-smooth pool finish.

  • Use: Thinning Coo-Var Swimming Pool Paint and cleaning brushes, rollers & spray guns after use
  • Coverage: Usage-dependent (thinning and equipment cleaning)
  • Application: Add to Coo-Var Swimming Pool Paint as required — use neat for brush and spray gun cleaning
  • Pack size: 1 litre

Perfect for:

  • Thinning pool paint for application
  • Cleaning spray guns brushes & rollers
  • Maintaining wet edge in warm weather
  • Preventing lap marks on pool surfaces  
Original price £19.99 - Original price £19.99
Original price
£19.99
£19.99 - £19.99
Current price £19.99

Tracked UK Delivery (DX / FedEx)

FREE Standard Delivery over £75

Standard £7.95 · 2–3 working days

Express £13.95 · Next working day (order before 12:00 Mon–Thu)

What Our Customers Say

⭐⭐⭐⭐⭐ "Used Coo-Var Pool Paint Thinners with Coo-Var Swimming Pool Paint on our domestic pool. Thinned the first coat as instructed — the paint flowed beautifully with no lap marks. Brush cleaning after each coat was quick and effective. One 1L tin covered thinning and tool cleaning for the whole project. Excellent product." — Rebecca J., Homeowner, Surrey

⭐⭐⭐⭐⭐ "Applied Coo-Var Pool Paint Thinners on a commercial pool project — painted in July in warm conditions. The slow-evaporating formula kept a wet edge perfectly across the large pool surface. No lap marks at all. Brushes and rollers cleaned easily after each coat. A must-have for professional pool painting." — Tom W., Pool Contractor, Yorkshire

⭐⭐⭐⭐⭐ "Used Coo-Var Pool Paint Thinners on our hotel pool renovation. Thinned the first coat for spray application — the viscosity was perfect and the finish is glass smooth. Spray gun cleaned easily with the thinners after each session. Two 1L tins covered the full project including equipment cleaning. Outstanding product." — Colin B., Facilities Manager, Devon

⭐⭐⭐⭐⭐ "Applied Coo-Var Pool Paint Thinners on our leisure centre pool. Painted in warm summer conditions — the slow-evaporating formula was essential for maintaining a wet edge across the large surface area. No lap marks, no rework. Brushes and rollers came out perfectly clean. Best pool paint thinners available." — Derek H., Leisure Centre Manager, Bristol

⭐⭐⭐⭐⭐ "Used Coo-Var Pool Paint Thinners on our garden pool. First time painting a pool — the thinners made the paint much easier to apply and the finish is professional. Brush cleaning after each coat was straightforward. The 1L tin was more than enough for our small pool. Highly recommend for DIY pool painting." — Rachel W., Homeowner, Kent

✅ This product is ideal if you need to:

• Thin Coo-Var Swimming Pool Paint to the ideal brushing or spraying viscosity for a smooth, even finish

• Use a slow-evaporating thinner that keeps a wet edge in warm weather and prevents lap marks on pool surfaces

• Clean brushes, rollers, and spray guns after applying Coo-Var Swimming Pool Paint

• Use a dual-purpose thinner and brushwash specifically formulated for Coo-Var Swimming Pool Paint

❌ This product is NOT suitable if you need to:

• Use as a general-purpose solvent or thinner for other paint types

Coo-Var Swimming Pool Paint Thinners is a slow-evaporating aromatic hydrocarbon solvent formulated specifically for use with Coo-Var Swimming Pool Paint — providing a dual-purpose solution for thinning pool paint to the ideal brushing or spraying viscosity and cleaning brushes, rollers, and spray guns after use.

The slow-evaporating formula is the key advantage of Coo-Var Pool Paint Thinners over general-purpose solvents. The slow flash-off rate keeps a wet edge on warm days, preventing lap marks and ensuring a smooth, even coat across large pool surfaces. This is particularly important when painting pools in summer conditions where fast-evaporating solvents cause the paint to dry too quickly at the edges, resulting in visible lap marks and an uneven finish.

For the complete pool painting system: 1) clean and degrease the pool surface with a universal degreaser, 2) apply Coo-Var Swimming Pool Paint thinned with Coo-Var Pool Paint Thinners on the first coat, 3) apply subsequent coats at full consistency or lightly thinned as required, 4) clean all brushes, rollers, and spray guns immediately after use with Coo-Var Pool Paint Thinners.

Flash point 41°C — flammable. Store and use away from open flames, sparks, and ignition sources. Use in well-ventilated area. Dispose of used thinners in accordance with local hazardous waste regulations.

Manufactured in the UK by Coo-Var with over 100 years of British paint innovation. Trusted by pool contractors, leisure operators, and homeowners for professional pool paint application.

Key Benefits:

• Slow-Evaporating Formula — Prevents Lap Marks – Slow flash-off rate keeps a wet edge on warm days, preventing lap marks and ensuring a smooth, even coat across large pool surfaces. Essential for professional pool painting results in warm weather conditions.

• Dual Purpose — Thinner & Brushwash – One product for thinning Coo-Var Swimming Pool Paint to the ideal viscosity and cleaning brushes, rollers, and spray guns after use. Reduces the number of products required on site.

• Optimises Paint Viscosity – Brings Coo-Var Swimming Pool Paint to the ideal brushing or spraying viscosity for a glass-smooth, streak-free finish. Reduces rework and touch-ups.

• Compatible with Coo-Var Swimming Pool Paint – Specifically formulated for Coo-Var Swimming Pool Paint. Trusted compatibility with the UK's leading chlorinated rubber pool paint system.

• Extends Tool Life – Effective brush, roller, and spray gun cleaning with Coo-Var Pool Paint Thinners removes pool paint residue and extends the working life of application tools.

• UK-Made – Manufactured in the UK by Coo-Var with over 100 years of British paint innovation. Trusted quality from a British coating specialist.

Thin your pool paint correctly and get a glass-smooth finish. Add to basket now.

Coo-Var Swimming Pool Paint Thinners is the essential companion product for all Coo-Var Swimming Pool Paint projects:

• Domestic Swimming Pools – Ideal for homeowners painting domestic swimming pools with Coo-Var Swimming Pool Paint. Thins paint to the ideal brushing viscosity for a smooth, even finish. Dual-purpose for brush and roller cleaning after each coat. One 1L tin covers most domestic pool projects.

• Commercial & Hotel Pools – Great for professional pool contractors and facilities managers painting commercial and hotel pools. Slow-evaporating formula essential for maintaining a wet edge across large pool surfaces in warm conditions. Prevents lap marks on large commercial pool surfaces.

• Leisure Centre & Sports Facility Pools – Perfect for leisure centre and sports facility pool maintenance and repainting. Slow-evaporating formula keeps a wet edge across large pool surfaces. Compatible with spray application for large commercial pools — cleans spray guns effectively after use.

• Holiday Park & Outdoor Pools – Suitable for holiday park and outdoor pool painting in warm summer conditions. Slow-evaporating formula particularly important for outdoor painting in warm weather — prevents lap marks and ensures a smooth, even finish.

• Pool Renovation Projects – A must-have for pool renovation and repainting projects. Thins Coo-Var Swimming Pool Paint for the first coat to improve penetration and adhesion. Cleans all application equipment after each coat for reuse throughout the project.

If you need further advice on using Coo-Var Swimming Pool Paint Thinners for your project, contact our experts now via the live chat for personalised guidance!

Usage: Add to Coo-Var Swimming Pool Paint as required — follow the guidelines on the paint tin for recommended thinning ratios

Thinning Guide:
• Add thinners gradually to the paint and stir thoroughly
• Test a small batch to confirm thinning ratio before scaling up
• Do not over-thin — excessive thinning will affect paint performance and film build
• Apply subsequent coats at full consistency or lightly thinned as required

Brushwash Usage:
• Pour a small quantity of thinners into a suitable container
• Rinse brushes, rollers, and spray guns immediately after use
• Work thinners through bristles, nap, or spray gun components to remove all paint residue
• Repeat with fresh thinners if required until clean
• Dispose of used thinners in accordance with local hazardous waste regulations

Example Calculations:

Small Pool Project (domestic pool — 1–2 coats):
• Thinning: Approx. 100–200ml per coat
• Brushwash: Approx. 200–300ml per session
• Recommended: One 1L tin

Medium Pool Project (commercial pool — 2–3 coats):
• Thinning: Approx. 300–500ml per coat
• Brushwash: Approx. 300–500ml per session
• Recommended: One to two 1L tins

For large commercial pool projects or spray application, order additional tins to ensure sufficient thinners for both thinning and equipment cleaning throughout the project.

Important: Flash point 41°C — flammable. Store and use away from open flames, sparks, and ignition sources. Use in well-ventilated area. Dispose of used thinners in accordance with local hazardous waste regulations.

Recommended System Products:
• Coo-Var Universal Degreaser – Clean and degrease the pool surface before painting
• Coo-Var Swimming Pool Paint – The compatible pool paint system for use with these thinners
• Paint Brushes, Rollers & Trays – For applying Coo-Var Swimming Pool Paint

Important Safety Note:

Flash point 41°C — flammable. Store and use away from open flames, sparks, and ignition sources. Use in well-ventilated area. Wear appropriate PPE including gloves and eye protection. Keep away from ignition sources during use and storage. Dispose of used thinners in accordance with local hazardous waste regulations — do not pour down drains.

Thinning Coo-Var Swimming Pool Paint:

• Add Coo-Var Pool Paint Thinners gradually to the paint — do not add all at once
• Stir thoroughly after each addition until fully combined
• Follow the recommended thinning ratio on the Coo-Var Swimming Pool Paint tin
• Test a small batch to confirm thinning ratio before scaling up to the full project
• Do not over-thin — excessive thinning will affect paint performance and film build
• The slow-evaporating formula keeps a wet edge in warm weather — work methodically across the pool surface to maintain a wet edge and prevent lap marks

Brush & Roller Cleaning:

• Pour a small quantity of Coo-Var Pool Paint Thinners into a suitable container
• Rinse brushes and rollers thoroughly in the thinners immediately after use
• Work the thinners through the bristles or nap to remove all paint residue
• Wash with soapy water after thinners cleaning if required
• Repeat with fresh thinners if required until clean

Spray Gun Cleaning:

• Flush spray gun components with Coo-Var Pool Paint Thinners immediately after use
• Disassemble spray gun and clean all components thoroughly
• Ensure all paint residue is removed before storage

Storage:

• Store in a cool, well-ventilated area away from ignition sources
• Keep container tightly sealed when not in use
• Flash point 41°C — store away from heat sources and open flames
• Dispose of in accordance with local hazardous waste regulations

Recommended System Products:
• Coo-Var Universal Degreaser – Clean and degrease the pool surface before painting
• Coo-Var Swimming Pool Paint – The compatible pool paint system for use with these thinners
• Paint Brushes, Rollers & Trays – For applying Coo-Var Swimming Pool Paint

What is Coo-Var Swimming Pool Paint Thinners and when should I use it?

Coo-Var Swimming Pool Paint Thinners is a slow-evaporating aromatic hydrocarbon solvent formulated specifically for use with Coo-Var Swimming Pool Paint. Use it to thin pool paint to the ideal brushing or spraying viscosity and to clean brushes, rollers, and spray guns after use.

Which pool paints is Coo-Var Pool Paint Thinners compatible with?

Coo-Var Pool Paint Thinners is formulated for use with Coo-Var Swimming Pool Paint only. It is not suitable for other pool paint systems. Using an incompatible thinner will affect paint performance, adhesion, and finish quality.

Do I need to thin Coo-Var Swimming Pool Paint?

Thinning is recommended for the first coat to improve flow and penetration, and for spray application. Follow the recommended thinning ratio on the Coo-Var Swimming Pool Paint tin. Do not over-thin — excessive thinning will affect paint performance and film build.

Why use a slow-evaporating thinner for pool painting?

The slow flash-off rate of Coo-Var Pool Paint Thinners keeps a wet edge on warm days, preventing lap marks and ensuring a smooth, even coat across large pool surfaces. Fast-evaporating solvents cause the paint to dry too quickly at the edges, resulting in visible lap marks and an uneven finish — particularly problematic on large pool surfaces in warm weather.

Can I use Coo-Var Pool Paint Thinners to clean brushes and rollers?

Yes — Coo-Var Pool Paint Thinners is a dual-purpose product for thinning and brush washing. Pour a small quantity into a suitable container and rinse brushes and rollers immediately after use. Wash with soapy water after thinners cleaning if required.

Can I use Coo-Var Pool Paint Thinners to clean spray guns?

Yes — flush spray gun components with Coo-Var Pool Paint Thinners immediately after use. Disassemble and clean all components thoroughly to remove all paint residue.

Is Coo-Var Pool Paint Thinners flammable?

Yes — flash point 41°C. Store and use away from open flames, sparks, and ignition sources. Use in well-ventilated area. Keep container tightly sealed when not in use.

How do I dispose of used Coo-Var Pool Paint Thinners?

Dispose of used thinners in accordance with local hazardous waste regulations. Do not pour down drains or into watercourses. Contact your local authority for guidance on hazardous waste disposal.

What is the complete system for painting a swimming pool with Coo-Var?

The complete system is: 1) clean and degrease the pool surface with a universal degreaser, 2) apply Coo-Var Swimming Pool Paint thinned with Coo-Var Pool Paint Thinners on the first coat, 3) apply subsequent coats at full consistency or lightly thinned as required, 4) clean all brushes, rollers, and spray guns immediately after use with Coo-Var Pool Paint Thinners. All products available from Specialist Paints Online.

Complete Your Pool Painting System:

• Coo-Var Universal Degreaser – Clean and degrease the pool surface before painting

• Coo-Var Swimming Pool Paint – The compatible pool paint system for use with these thinners

• Paint Brushes, Rollers & Trays – For applying Coo-Var Swimming Pool Paint

Need help planning your pool painting project? 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

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