
The Best Shellac‑Based Primer for Stains: SPO Shellac Stain & Odour Blocker
Highlights
- Shellac’s Superior Seal: Resin from the Lac Bug, known for excellent adhesion and protective barrier against stains.
- Odour‑Locking Power: Also tackles smoke or musty smells.
- Professional Reputation: Preferred by many UK contractors for demanding projects.
- Rapid Overcoating: Dries in ~30 minutes, minimising downtime.
Introduction
Shellac isn’t just for furniture—it’s also an innovative ingredient in primers. If you’re tired of seeing stains reappear through layers of paint, SPO Shellac Stain & Odour Blocker is your ultimate fix.
For more details on its performance and application, check our Main Blog
or view the Product Page.

Feature Breakdown
Resin from the Lac Bug creates a robust barrier between the stain and topcoat preventing any bleed though.
Heavy‑Duty Shellac Formula
- Industrial Strength: Locks in nicotine, tar, water damage
- Instant Barrier: Prevents bleed‑through on tough surfaces
Versatile & Reliable
- Surface Compatibility: Timber, plaster, cement, certain plastics, brickwork
- Easy Application: Brush or short‑pile roller—straightforward even for DIYers
Cost‑Effective & Time‑Saving
- One Product, Multiple Uses: No need for different primers
- Long‑Term Benefit: Fewer coats and minimal rework needed
User Testimonials & Evidence
“We used SPO Shellac in our pub’s nicotine damaged ceilings. It handled the stains and smell in one go!”
– Mark, Pub Owner, Leeds

Conclusion
Among shellac‑based primers, SPO Shellac Stain & Odour Blocker stands out for fast drying and industrial‑grade sealing power, perfect for UK homes and businesses.
- Learn More at our Main Blog.
- Buy Now from our Product Page.
- How to guide: How to Cover Stubborn Stains with SPO Shellac Stain & Odour Blocker
- Check Out a Real‑Life Project in our Case Study.
- Contact Us for expert, customised advice.
Contact Details:
Live Chat: On our website (bottom-right corner)
Phone: 01482 222421
Email: info@specialistpaintsonline.co.uk
Business Hours:
Mon-Thu: 8:30 AM–5:00 PM
Fri: 8:30 AM–3:45 PM