SPO Two-Pack Floor Primer & Sealer - Water-Based Epoxy Primer for Concrete, Tiles & Power-Floated Floors

• Prime porous concrete floors before applying topcoat to prevent uneven absorption and ensure consistent coverage

• Create an adhesion layer on hard-to-paint surfaces like glazed tiles, ceramic tiles, power-floated concrete, or asphalt

• Reduce coating failure risk by using a two-pack epoxy primer that cures to a tough, durable base layer

• Use a water-based, low-VOC (< 10 g/L) primer that's safe for occupied spaces and cleans up with water

• Prime garage floors, industrial floors, warehouse floors, or commercial floors before applying SPO Two-Pack Epoxy Floor Paint, Coo-Var Pro Floor or Pro Floor Plus.

• Apply a primer with 1.5–2 hour pot life that gives adequate working time for large areas (35–50 m² per 5 kg)

• Choose between Clear (dries transparent) or Grey primer based on your topcoat colour requirements

• Use as a standalone topcoat (this is a primer—it must be overcoated with floor paint within 7 days for optimal adhesion)

• Apply to surfaces with rising damp, penetrating damp, or active moisture ingress (address underlying moisture issues first)

• Apply in temperatures below 10°C or in damp, humid, or freezing conditions that may affect curing

• Use without mixing base and hardener (this is a two-pack system—both components must be mixed 1:1 before application)

• Exceed the maximum recoat window of 7 days (if you wait longer than 7 days, the surface must be lightly sanded before topcoating)

SPO Two-Pack Floor Primer & Sealer is a water-based epoxy primer designed to solve the most common cause of floor paint failure: poor adhesion. When applied to porous concrete, it seals the surface and prevents the topcoat from soaking in unevenly. When applied to hard-to-paint surfaces like glazed tiles, power-floated concrete, or asphalt, it creates a bonding layer that allows topcoats to adhere properly.

The two-pack epoxy formula (base + hardener mixed 1:1) cures to a tough, semi-gloss finish that provides excellent adhesion for subsequent coats. With very low VOC content (< 10 g/L) and water-based formulation, it's safe to use in occupied spaces and cleans up with water. The 1.5–2 hour pot life gives you enough working time to apply the primer evenly across large areas.

Available in Clear (dries transparent) or Grey, it allows you to choose the right base for your topcoat colour. Clear is ideal when you want the topcoat colour to remain true, whilst Grey provides a neutral base for darker topcoats. The semi-gloss finish ensures excellent mechanical key for topcoat adhesion.

Manufactured in the UK to exacting standards and backed by Specialist Paints Online expertise, it's the professional solution for ensuring your floor paint lasts. Apply it before SPO Two-Pack Epoxy Floor Paint, Coo-Var Pro Floor or Pro Floor Plus, and enjoy years of reliable performance without peeling, flaking, or coating failure.

Key Benefits:

• Seals Porous Concrete – Prevents topcoat from soaking in unevenly, ensuring consistent coverage and adhesion (35–50 m² per 5 kg @ 45 µm DFT).

• Bonds to Hard-to-Paint Surfaces – Creates adhesion layer on glazed tiles, power-floated concrete, and asphalt where standard primers fail.

• Reduces Coating Failure Risk – Two-pack epoxy formula cures to a tough, durable base that prevents peeling, flaking, and premature wear.

• Water-Based & Low VOC – Very low VOC content (< 10 g/L) makes it safe for occupied spaces. Non-flammable and cleans up with water.

• Fast Drying – Touch dry in 2–3 hours, recoat after 16 hours. Full cure in 5–7 days. Pot life of 1.5–2 hours gives adequate working time.

• Professional Results – Two-pack epoxy provides superior adhesion compared to single-pack primers. Extends floor lifespan and reduces maintenance costs.

• Versatile Colour Options – Clear (dries transparent) or Grey. Choose based on topcoat colour for optimal results.

Apply it today, topcoat tomorrow. Add to basket now and ensure your floor paint lasts for years.

SPO Two-Pack Floor Primer & Sealer | Water-Based Epoxy Primer is the perfect choice for preparing floors before topcoat application in a variety of commercial, industrial, and residential environments:

• Industrial & Manufacturing – Ideal for priming factory floors, warehouse floors, loading bays, and machinery areas before applying topcoat. Seals porous concrete and ensures topcoat adhesion on power-floated concrete. The water-based formula (< 10 g/L VOC) is safe for occupied spaces.

• Garage Floors – Great for priming garage floors before applying SPO Two-Pack Epoxy Floor Paint, Coo-Var Pro Floor or Pro Floor Plus. Seals porous concrete and prevents topcoat from soaking in unevenly. Available in Clear or Grey to suit your topcoat colour.

• Glazed Tiles & Ceramic Tiles – Perfect for creating an adhesion layer on glazed tiles, ceramic tiles, or porcelain tiles where standard primers fail. Allows you to paint over tiles without removing them, saving time and cost.

• Power-Floated Concrete – Suitable for priming power-floated concrete (smooth, dense concrete) where topcoats struggle to adhere. The two-pack epoxy formula creates a mechanical key for topcoat adhesion.

• Commercial & Retail – Ideal for priming shop floors, showroom floors, restaurant floors, and commercial kitchens before topcoat application. Fast drying (touch dry 2–3 hours, recoat 16 hours) minimises downtime.

• Property Maintenance & DIY – A must-have for landlords, facility managers, and homeowners preparing floors for painting. Cost-effective solution that extends floor lifespan and reduces coating failure. One 5 kg unit covers 35–50 m² for under £120.

If you need further advice on using SPO Two-Pack Floor Primer & Sealer for your project, contact our experts now via the live chat for personalised guidance!

Coverage: Approx. 35–50 m² per 5 kg unit (at recommended 45 µm dry film thickness)

Per Unit Coverage (Single Coat):
• 5 kg unit: Covers approx. 35–50 m²

Recommended Application: 1 coat (primer layer before topcoat)

Example Calculations:

Small Garage Floor (25 m²):
• Total area: 25 m² × 1 coat = 25 m² coverage needed
• Primer required: Approx. 0.5–0.7 units (one 5 kg unit will cover with material left over)
• Recommended: One 5 kg unit (£116.99)

Medium Workshop or Warehouse Aisle (40 m²):
• Total area: 40 m² × 1 coat = 40 m² coverage needed
• Primer required: Approx. 0.8–1.1 units
• Recommended: One 5 kg unit (£116.99) OR two units if surface is very porous

Large Factory Floor or Warehouse (100 m²):
• Total area: 100 m² × 1 coat = 100 m² coverage needed
• Primer required: Approx. 2–2.9 units
• Recommended: Three 5 kg units (£350.97)

*Coverage may vary depending on surface porosity and texture. Very porous or rough surfaces (such as unsealed concrete) may require more primer. For accurate project planning, we recommend ordering 10–15% extra to account for surface variation and wastage during mixing.

**Important:** This is a primer—you will also need topcoat (SPO Two-Pack Epoxy Floor Paint, Coo-Var Pro Floor or Pro Floor Plus) to complete your floor. Calculate topcoat requirements separately.

Surface Preparation:

Concrete & Porous Surfaces:
• Ensure surface is fully cured (minimum 28 days for new concrete)
• Remove all dust, dirt, oil, grease, and loose material using Coo-Var Universal Degreaser or Oil Remover
• Etch porous or smooth concrete with Co-Var Acid Etch to improve adhesion
• Repair cracks and holes with suitable concrete filler and allow to cure
• Surface must be clean, dry, and free from moisture (test for rising damp if necessary)

Glazed Tiles, Ceramic Tiles & Power-Floated Concrete:
• Clean surface thoroughly to remove all dirt, grease, and contamination
• Degrease with Coo-Var Universal Degreaser
• Lightly sand or de-gloss the surface to improve mechanical key
• Remove all dust and ensure surface is clean and dry

Asphalt:
• Ensure surface is clean, dry, and free from oil, grease, and loose material
• Degrease with Coo-Var Universal Degreaser if contaminated
• Surface must be sound and well-adhered

Mixing (Two-Pack System):

• This is a two-pack product—base and hardener must be mixed individually for 2 minutes each.
• Mix ratio: 1:1 (equal parts base and hardener by volume)
• Pour hardener into base tin and stir thoroughly for 2–3 minutes until fully combined. Add up to 500ml of clean water then mix again.
• Ensure no unmixed material remains at the bottom or sides of the tin
• Pot life: 1.5–2 hours @ 20°C (use mixed product within this time)
• Do not mix more than you can apply within the pot life

Application:

• Apply in temperatures between 10°C and 25°C for optimal curing
• Use a good-quality brush or short-pile roller
• Apply first (and only) coat evenly, working primer well into the surface
• Aim for a wet film thickness of approximately 100 µm (this will dry to 45 µm)
• Ensure complete coverage with no missed areas
• Avoid application in damp, humid, or freezing conditions
• Ensure good ventilation during application and drying

Drying & Curing Times (at 20°C):

• Touch dry: 2–3 hours
• Hard dry: 16 hours
• Recoat time: Minimum 16 hours; Maximum 7 days
• Full cure: 5–7 days

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

**Important:** If you exceed the 7-day maximum recoat window, lightly sand the surface before applying topcoat to ensure proper adhesion.

Top coating:

• SPO Two-Pack Floor Primer & Sealer must be overcoated with floor paint—it is not a standalone finish
• Recommended topcoats: SPO Two-Pack Epoxy Floor Paint, Coo-Var Pro Floor and Pro Floor Plus.
• Apply topcoat within 16 hours (minimum) to 7 days (maximum) for optimal adhesion
• If topcoat is delayed beyond 7 days, lightly sand the primer surface before topcoating

• Finish / Texture: Semi-gloss (dries clear)
• Base: Water-based two-pack epoxy
• Available Colours: Clear (opaque when wet)
• Pack Sizes: 5 kg unit (base + hardener)
• Coverage: 35 – 50 m² per 5 kg @ 45 µm DFT
• Drying Times @ 20 °C: Touch dry 2 – 3 hrs; Hard dry 16 hrs; Full cure 5 – 7 days
• Re-coat Interval: Minimum 16 hrs; Maximum 7 days
• Minimum Application Temp.: 10 °C
• VOC Content: < 10 g/L (very low)
• Flash Point: Non-flammable
• Application Method: Mix 1:1 base & hardener, thin up to 10 % with clean water; apply by brush or short-pile roller
• Surface Suitability: Difficult floors (tiles, dense concrete), walls, previously painted surfaces where mechanical abrasion is impractical
• Wet Film Thickness: 100 µm
• Dry Film Thickness: 45 µm
• Pot Life @ 20 °C: 1.5 – 2 hrs

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

Q: What is SPO Two-Pack Floor Primer & Sealer and why do I need it?

A: SPO Two-Pack Floor Primer & Sealer is a water-based epoxy primer that seals porous concrete and creates an adhesion layer on hard-to-paint surfaces like glazed tiles, power-floated concrete, and asphalt. It's essential for preventing floor paint failure caused by poor adhesion or uneven absorption. The two-pack epoxy formula (base + hardener mixed 1:1) cures to a tough, durable base that ensures your topcoat lasts for years without peeling, flaking, or premature wear.

Q: Where can I use SPO Two-Pack Floor Primer & Sealer?

A: Use it on interior concrete floors, glazed tiles, ceramic tiles, power-floated concrete, asphalt, and any porous surface that needs priming before topcoat application. Ideal for garage floors, industrial floors, warehouse floors, commercial floors, and any location where you're applying SPO Two-Pack Epoxy Floor Paint, Coo-Var Pro Floor or Pro Floor Plus.

Q: How do I mix and apply SPO Two-Pack Floor Primer & Sealer?

A: This is a two-pack system. Mix the base and hardener 1:1 (equal parts by volume) by pouring the hardener into the base tin and stirring thoroughly for 2–3 minutes. Add up to 500ml clean water and mix again. Apply by brush or short-pile roller in temperatures between 10°C and 25°C. Pot life is 1.5–2 hours @ 20°C, so only mix what you can apply within this time. Coverage is approximately 35–50 m² per 5 kg unit.

Q: How long does SPO Two-Pack Floor Primer & Sealer take to dry before top coating?

A: At 20°C, the primer is touch dry in 2–3 hours and hard dry in 16 hours. You can apply topcoat after a minimum of 16 hours. The maximum recoat window is 7 days—if you wait longer than 7 days, lightly sand the surface before top coating to ensure proper adhesion. Full cure is achieved in 5–7 days.

Q: What's the difference between Clear and Grey primer?

A: Clear primer is opaque when wet but dries transparent, allowing the topcoat colour to remain true. Grey primer provides a neutral base for darker topcoats. Choose Clear when you want the topcoat colour to be vibrant and accurate, or Grey when you're using darker topcoat colours. Both provide the same adhesion and sealing properties.

Q: Can I use SPO Two-Pack Floor Primer & Sealer as a standalone finish?

A: No, this is a primer—it must be overcoated with floor paint (SPO Two-Pack Epoxy Floor Paint, Coo-Var Pro Floor or Pro Floor Plus) within 7 days for optimal adhesion. The primer provides the base layer for adhesion and sealing, whilst the topcoat provides the protective, decorative finish.

Q: What is the pot life and how much can I mix at once?

A: Pot life is 1.5–2 hours @ 20°C. This is the time you have to apply the mixed product before it starts to cure in the tin. Only mix what you can apply within this time. For large areas, mix in batches. One 5 kg unit covers 35–50 m², so calculate how much area you can prime in 1.5–2 hours and mix accordingly.

Q: How much coverage can I expect from SPO Two-Pack Floor Primer & Sealer?

A: One 5 kg unit covers approximately 35–50 m² per coat, depending on surface porosity and texture. Very porous or rough surfaces may require more primer. For a typical 40 m² garage floor, you would need one 5 kg unit. We recommend ordering 10–15% extra for surface variation and wastage during mixing.

Q: Is SPO Two-Pack Floor Primer & Sealer safe to use in occupied spaces?

A: Yes, SPO Two-Pack Floor Primer & Sealer is water-based with very low VOC content (< 10 g/L) and is safe to use in occupied spaces. It's non-flammable and cleans up with water. Ensure good ventilation during application and drying. The low VOC content makes it suitable for garages, workshops, and commercial spaces.

Q: What topcoats are compatible with SPO Two-Pack Floor Primer & Sealer?

A: SPO Two-Pack Floor Primer & Sealer is compatible with SPO Two-Pack Epoxy Floor Paint, Coo-Var Pro Floor and Pro Floor Plus. Apply topcoat within 16 hours (minimum) to 7 days (maximum) for optimal adhesion. If you exceed 7 days, lightly sand the primer surface before top coating.

Q: Can I use SPO Two-Pack Floor Primer & Sealer on tiles?

A: Yes, SPO Two-Pack Floor Primer & Sealer is specifically designed to bond to hard-to-paint surfaces like glazed tiles, ceramic tiles, and porcelain tiles. Clean and lightly sand the tiles first, then apply the primer. This creates an adhesion layer that allows topcoats to bond properly, saving you the time and cost of removing tiles.

Q: What happens if I exceed the 7-day maximum recoat window?

A: If you wait longer than 7 days to apply topcoat, the primer surface becomes too smooth for optimal adhesion. Lightly sand the surface with fine-grit sandpaper to create a mechanical key, then clean off the dust and apply your topcoat. This ensures proper adhesion between the primer and topcoat.

Safety data sheet
Technical data sheet

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

• Oil Remover: Eliminates ingrained oils and grease that prevent coatings from bonding, ensuring the epoxy primer adheres correctly from the very first coat.
• Acid Etch: Chemically prepares concrete and power-floated floors by opening the surface and creating a rough, porous key that epoxy primers can properly grip.
• Universal Degreaser: Rapidly cuts through oil, grease, and traffic film, leaving a spotless surface that helps maximise the durability of the epoxy system.
• SPO Two-Pack Floor Primer & Sealer - Water-Based Epoxy Primer for Concrete, Tiles & Power-Floated Floors
• Profloor: A high-performance floor coating designed to work seamlessly over the epoxy primer, delivering a tough, long-lasting finish for demanding environments.
• Profloor Plus: An enhanced heavy-duty floor coating offering increased durability and chemical resistance when applied over the epoxy primer system.
• Application Tools: Brushes, rollers, extension poles for efficient coverage

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.