SPO General Purpose Stain Block Primer | Multi Surface Stain Blocking Primer

• Surface Prep: Clear away dust, grease, or flaking paint. Fill and sand any cracks or gaps.
• Application: Stir thoroughly. Apply evenly with a brush, roller, or spray—avoid puddling or thick edges.
• Drying/Curing: Wait 4–6 hours before applying your chosen topcoat; confirm dryness as needed.
• Maintenance: Store leftover primer in a cool, dry place; reseal container tightly for future use.
• Pro Tip: Lightly scuff glossy surfaces prior to priming for better adherence.

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

• Topcoat Paints: Achieve the perfect finish once stains are locked away
• Degreasers & Cleaners: Prep surfaces to remove oily residues before priming
• Application Tools: Brushes, rollers, extension poles for even coverage

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

SPO General Purpose Stain Block Primer locks watermarks, nicotine and graffiti deep inside the film, giving you a pristine white canvas ready for any top coat. By hiding stubborn stains in a single pass it cuts labour, slashes paint usage and turns redecoration jobs around faster for quicker profit. Backed by over 100 years of British paint innovation, it’s arguably the best cost effective stain blocking primer money can buy. Low odour solvents and all surface adhesion let you prime large surface areas while cheaper primers are still flashing off.

Key Benefits

• One Coat Cover Up – Heavy water, smoke and ink stains vanish first time, saving extra coats and keeping budgets tight.
• Cost Effective Spread – 10 m² per litre means fewer tins on big jobs, maximising margin without compromising quality.
• Multi Surface Grip – Bonds to plaster, tiles, galvanised metal, wood, masonry and plastics, so one primer handles the entire project.
• Fast Back to Work – Touch dry in 30 minutes and re-coatable in 4 hours, letting you finish and hand over rooms the same day.
• Low Odour Confidence – Mild solvent blend keeps indoor air fresh, boosting client satisfaction and reducing complaints.
  

Prime it this morning, paint it this afternoon, add to basket today for next day UK delivery, buy today, paint tomorrow and enjoy a stain free finish immediately.

• Finish / Texture: Matt white
• Base: Low-odour solvent-based primer/sealer
• Available Colours: White
• Pack Sizes: 1 L, 2.5 L
• Coverage: ~10 m²/L @ 35–40 µm DFT
• Drying Times @ 20 °C: Touch dry 30 min; hard dry 4 h
• Re-coat Interval: 4–6 h
• Minimum Application Temp.: 5 °C
• VOC Content: ≤ 500 g/L
• Flash Point: 36 °C (closed cup)
• Application Method: Brush or roller; do not thin; clean tools with Thinners 18 or low-odour white spirit
• Surface Suitability: Plaster, masonry, wood, metal (incl. galvanised), tiles, plastics, existing paint – interior & exterior
• Volume Solids: 41 %
• DFT/WFT: 35–40 µm DFT; 100 µm WFT
  

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

Technical data sheet

Safety Data Sheet

1. What is SPO General Purpose Stain Block Primer used for?

This oil-based primer is designed to lock down water, nicotine, grease, and other persistent stains, preventing them from bleeding through into your final paint job.

2. Can I use it on both interior and exterior surfaces?

Yes. It’s formulated for versatile application on walls, wood, brick, and more—whether indoors or out.

3. How quickly can I apply the topcoat after priming?

You can typically apply your topcoat in just 4–6 hours, keeping your project moving forward without lengthy drying delays.

4. Does this primer really stop tough stains from coming back?

Absolutely. Its sealing formula ensures stains are contained beneath the primer, so they won’t reappear or discolour subsequent paint layers.

5. How much area does one litre cover?

The primer covers roughly 10 m² per litre, depending on the surface’s porosity and condition. Applying a thin, even coat helps maximise coverage and sealing effectiveness.

6. What application methods are recommended?

You can apply the primer with a brush, short pile roller, or spray. Make sure the surface is clean and dry for best results.

7. Do I need any special preparation before using this primer?

Remove loose or flaky paint, clean away dirt or grease, and ensure the substrate is thoroughly dry. For challenging stains, applying two thin coats can provide an extra layer of protection.

Need help dealing with stubborn stains or preparing a surface?

For personalised guidance or additional information, contact our experts now via live chat—we’re here to help you achieve a flawless finish!