SPO Glass Shading Heat Reduction Paint - Removable Window Shading for Greenhouses, Conservatories & More

• Reduce seasonal heat and glare on windows, skylights, conservatories, and glass structures

• Use removable water-based shading that is easily removed with warm soapy water when no longer needed

• Apply to interior and exterior glass, acrylic, and polycarbonate surfaces (interior lasts longer, exterior lasts summer season)

• Adjust shading level with 1–3 coats for customized heat reduction and light transmission

• Use water-based safe formula for occupied commercial, industrial, and residential spaces (no harsh chemicals)

• Apply cost-effective seasonal heat reduction compared to permanent window films

• Improve comfort and working conditions whilst reducing cooling costs in summer

• Use professional-grade glass shading from SPO (decades of glazing expertise)

• Apply to wet or damp glass (surface must be clean and dry for proper adhesion)

• Use without dilution (must dilute 2 parts paint to 1 part water before application)

• Use on surfaces other than glass, acrylic, or polycarbonate

• Apply in freezing conditions or high humidity (apply in dry conditions above 5°C)

• Expect permanent exterior durability (exterior applications last summer season, may require reapplication)

SPO Glass Shading Heat Reduction Paint is a removable water-based window shading designed for seasonal heat and glare reduction on glass windows, skylights, conservatories, and glass structures. Unlike permanent window films that require professional installation, this water-based coating provides adjustable shading whilst remaining easily removable with warm soapy water when no longer needed.

Developed by SPO with decades of glazing expertise, Glass Shading Paint is the cost-effective solution for seasonal heat reduction on any glass, acrylic, or polycarbonate surface. The water-based formulation provides properties that reduce heat buildup and UV glare whilst allowing natural light transmission for comfortable working and living spaces.

When glass windows, skylights, and structures are exposed to intense summer sunlight, heat buildup creates uncomfortable conditions, reduces productivity, and increases cooling costs. SPO Glass Shading Paint's coating reduces heat and glare whilst the adjustable opacity (1–3 coats) allows customization of shading levels. The easy removal with warm soapy water makes it perfect for seasonal use.

The water-based formulation is safe for occupied spaces. The simple dilution (2 parts paint to 1 part water) and application by brush or roller makes it accessible for DIY users and professionals. Coverage of 50 m² per 2.5L tin per coat makes it cost-effective for large glass areas in commercial, industrial, and residential environments.

Suitable for interior and exterior glass, acrylic, and polycarbonate surfaces. Interior applications last longer as they're protected from weather. Exterior applications will last the summer season when applied correctly, though may require reapplication depending on weather exposure. Apply in spring, enjoy summer heat reduction, remove in autumn for winter light.

Manufactured in the UK to rigorous standards and trusted by property owners, facilities managers, business owners, and homeowners for seasonal heat reduction and easy removal.

Key Benefits:

• Seasonal Heat Reduction – Coating reduces heat build up and UV glare on windows, skylights, conservatories, and glass structures. Keeps spaces cooler in summer. Improves comfort and working conditions. Reduces cooling costs.

• Easily Removable – Water-based formulation is easily removable with warm soapy water and cloth. No scraping or harsh chemicals required. Perfect for seasonal use. Apply in spring, remove in autumn.

• Adjustable Shading – Apply 1–3 coats to adjust shading level. One coat provides light shading, three coats provide maximum heat reduction. Customize opacity for specific needs. Allows natural light whilst reducing heat.

• Interior & Exterior Use – Suitable for interior and exterior glass, acrylic, and polycarbonate. Interior applications last longer. Exterior applications last the summer season when applied correctly (may require reapplication depending on weather exposure).

• Water-Based Safe Formula – Water-based formulation is safe for occupied spaces. No harsh chemicals or solvents. Easy application and clean up. DIY-friendly and professional-grade.

• Cost-Effective Coverage – Coverage of 50 m² per 2.5L tin per coat (when diluted 2:1). Affordable seasonal heat reduction compared to permanent window films. Simple dilution and application. Ideal for large glass areas.

• UV & Glare Protection – Reduces UV exposure and glare whilst allowing natural light transmission. Creates comfortable spaces. Reduces fading of furnishings and equipment. Improves productivity and comfort.

• SPO Heritage – Decades of glazing expertise. Trusted by property owners, facilities managers, business owners, and homeowners for seasonal heat reduction.

Reduce summer heat with removable glass shading. Add to basket now and enjoy cooler spaces.

SPO Glass Shading Heat Reduction Paint is the perfect choice for seasonal heat and glare reduction in a variety of applications:

• Windows & Glazing – Ideal for window and glazing seasonal heat reduction in any building or structure. Improves comfort and reduces cooling costs. Interior or exterior application. Lasts summer season. Cost-effective for large glass areas.

• Skylights & Roof Windows – Great for skylight and roof window heat and glare reduction. Reduces heat buildup in upper floors. Protects furnishings from UV damage. Interior application lasts longer. Easy seasonal removal.

• Conservatories & Glass Roofs – Perfect for conservatory and glass roof heat and glare reduction. Creates comfortable living spaces in summer. Adjustable shading with 1–3 coats. Interior or exterior application.

• Commercial & Industrial Buildings – Suitable for commercial and industrial building heat reduction. Improves working conditions and productivity. Reduces cooling costs. Easy seasonal removal. Professional-grade performance.

• Residential Properties – A must-have for residential property heat and glare reduction. Creates comfortable living spaces. Protects furnishings from UV fading. DIY-friendly application and removal.

• Glass Structures & Buildings – Ideal for any glass structure or building requiring seasonal heat reduction. Cost-effective compared to permanent window films. Easy seasonal removal. Interior and exterior use.

If you need further advice on using SPO Glass Shading Heat Reduction Paint for your project, contact our experts now via the live chat for personalised guidance!

Coverage: Approx. 20 m² per litre (when diluted 2:1 with water—2 parts paint to 1 part water)

Per Tin Coverage (Diluted, Single Coat):
• 2.5 litres: Makes 3.75 litres diluted, covers approx. 50 m² per coat

Recommended Application: 1–3 coats depending on desired shading level
• 1 coat = Light shading (reduces heat and glare)
• 2 coats = Medium shading (more heat reduction and privacy)
• 3 coats = Maximum shading (Greater heat reduction and full privacy)

Example Calculations:

Small Greenhouse or Conservatory (10 m²):
• Light shading (1 coat): 10 m² × 1 coat = 10 m² coverage needed
• Paint required: Approx. 0.5 litres diluted (0.33 litres undiluted)
• Recommended: One 2.5L tin (£31.99) will cover with material left over

Medium Greenhouse or Conservatory (25 m²):
• Medium shading (2 coats): 25 m² × 2 coats = 50 m² coverage needed
• Paint required: Approx. 2.5 litres diluted (1.67 litres undiluted)
• Recommended: One 2.5L tin (£31.99)

Large Greenhouse or Commercial Skylight (50 m²):
• Maximum shading (3 coats): 50 m² × 3 coats = 150 m² coverage needed
• Paint required: Approx. 7.5 litres diluted (5 litres undiluted)
• Recommended: Two 2.5L tins (£63.98)

*Coverage may vary depending on surface texture and application method. Glass surfaces typically require less paint than textured acrylic or polycarbonate. For accurate project planning, we recommend ordering 10–15% extra to account for surface variation and wastage during dilution.

**Important:** Always dilute 2:1 with water (2 parts paint to 1 part water) before application. Undiluted paint will not perform correctly.

Surface Preparation:

Glass, Acrylic & Polycarbonate:
• Ensure surface is clean, dry, and free from dust, dirt, grease, and contamination
• Clean with glass cleaner, Fluxaf Power Clean or mild detergent and water
• Rinse thoroughly and allow to dry completely
• Surface must be dry before application (moisture will prevent proper adhesion)

Dilution (Essential):

• Mix ratio: 2 parts paint to 1 part clean water (2:1)
• Example: For 1 litre of diluted paint, mix 667ml paint + 333ml water
• Stir thoroughly until fully combined
• Ensure no unmixed material remains at the bottom or sides of the container

Application:

• Apply in temperatures between 5°C and 25°C for optimal drying
• Use a good-quality brush or short-pile roller
• Apply first coat evenly, working paint well into the surface
• Avoid runs, drips, or thick application (thin, even coats work best)
• Allow to dry for 1–2 hours (touch-dry) before applying second coat
• Apply additional coats (up to 3 total) for more shading and heat reduction
• More coats = more light blocking and heat reduction
• Avoid application in damp, humid, or freezing conditions

Drying Times (at 20°C):

• Touch dry: 1–2 hours
• Recoat time: When touch-dry (approximately 2 hours)
• Full dry: 4–6 hours

*Drying times may be extended in cooler temperatures or high humidity.

Removal (When No Longer Needed):

• Wash off with warm soapy water and a sponge or cloth
• For stubborn areas, use a soft brush or scrubbing pad
• Rinse thoroughly with clean water
• No scraping, no chemicals, no permanent residue
• The paint is designed to be easily removable—this is a feature, not a fault

Maintenance:

• Do not clean painted glass with water whilst shading is in use (it will wash off)
• If paint is accidentally washed off, simply reapply
• For seasonal use, apply in spring and remove in autumn

• Colour: White
• Finish / Texture: Matt
• Base: Water-based polymer dispersion
• Specific Gravity: 1.68 @ 20 °C
• Total Solids: 70 %
• Pack Sizes: 5 L
• Coverage: Up to 20 m² per L (2 parts paint : 1 part water)
• Drying Times @ 20 °C: Touch-dry 1–2 h
• Re-coat Interval: When touch-dry (≈2 h)
• Minimum Application Temp.: 5 °C
• VOC Content: Low
• Flash Point: Non-flammable
• Application Method: Brush or roller; dilute 2 : 1 with water
• Surface Suitability: Glass, acrylic, polycarbonate
• Storage: Protect from frost and excessive heat

Need detailed specs or prep guidance? Chat with our experts today, and cool temperatures tomorrow.

What is SPO Glass Shading Heat Reduction Paint and when should I use it?

SPO Glass Shading is a removable water-based window shading for seasonal heat and glare reduction on glass windows, skylights, conservatories, and glass structures. Use it when you need summer heat reduction whilst maintaining the ability to remove shading in autumn for winter light.

Can I use Glass Shading on exterior glass?

Yes, Glass Shading is suitable for interior and exterior glass, acrylic, and polycarbonate. Interior applications last longer as they're protected from weather. Exterior applications will last the summer season when applied correctly, though may require reapplication depending on weather exposure.

How long does Glass Shading last?

Interior applications last longer as they're protected from weather. Exterior applications will last the summer season (typically April/May through August/September) when applied correctly. Depending on weather exposure, exterior applications may require reapplication during the season. Remove in autumn for winter light.

How do I remove Glass Shading?

Glass Shading is easily removable with warm soapy water and cloth. No scraping or harsh chemicals required. Simply wash with warm soapy water, wipe with cloth, and rinse. Typically remove in autumn when summer heat reduction is no longer needed.

How many coats of Glass Shading do I need?

Apply 1–3 coats depending on desired shading level. One coat provides light shading and heat reduction. Two coats provide moderate shading. Three coats provide maximum heat reduction. Adjust opacity for specific needs.

How do I dilute Glass Shading?

Dilute 2 parts paint to 1 part clean water (2:1 ratio). Stir thoroughly to ensure even mixing. This dilution provides optimal coverage and application properties.

Is Glass Shading safe for occupied spaces?

Yes, Glass Shading is water-based and safe for occupied commercial, industrial, and residential spaces. No harsh chemicals or solvents. Ideal for any occupied building or structure.

How much coverage can I expect from Glass Shading?

Glass Shading provides approximately 50 m² per 2.5L tin per coat when diluted 2:1 with water. A 5L tin covers approximately 100 m² per coat. Coverage may vary depending on glass porosity and application method.

When should I apply Glass Shading?

Apply in spring (April/May) when summer heat begins. Ensure glass is clean and dry. Apply in dry conditions above 5°C. Remove in autumn (September/October) when summer heat reduction is no longer needed and winter light is desired.

Can I use Glass Shading on acrylic or polycarbonate?

Yes, Glass Shading is suitable for glass, acrylic, and polycarbonate surfaces. Ensure surface is clean and dry before application. Follow same application and removal procedures as for glass.

What products do I need to apply Glass Shading?

We recommend using Application Tools (brushes, rollers) suitable for water-based paints. Clean tools with water after use. No special equipment required for removal - just warm soapy water and cloth.

Technical Data Sheet

Safety Data Sheet

Free Delivery on Orders Over £75: Stock up on everything you need in one go and complete the job properly

• Fluxaf Power Clean: clean glass or plastic thoroughly before shading application
• Application Tools: Brushes, short pile rollers, extension poles for higher areas

These products are commonly combined for best long-term results.

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.