Why We Trust Graco and Spray Plant UK
The Self-Builder’s Secret Weapon: Why We Trust Graco & Spray Plant UK
If you are a self-builder aiming for modern energy efficiency standards, whether it is Passivhaus, AECB, or simply meeting new building regulations, you know that airtightness is often the biggest hurdle.
For decades, the answer was endless rolls of tape, delicate membranes, staples, and weeks of painstaking work. One missed corner and your air test fails.
At Intelligent Membranes, we changed that game with Passive Purple. We turned a weeks-long taping job into a one-day spray job. But a world-class liquid membrane is only half the battle; you also need the right way to apply it.
That is where our strategic partnership with Graco and Spray Plant UK becomes the self-builder’s best friend.

Why We Choose Graco
Passive Purple is not standard emulsion paint. It is a highly technical, intelligent polymer coating designed to build a thick, durable, elastic skin on your building.
To achieve the required thickness for Passivhaus certification in a single pass, you need power and consistency. You cannot get that from a cheap DIY store sprayer.
We exclusively recommend and use Graco airless sprayers. They are the industry gold standard for a reason. They provide the power needed to atomise high-performance coatings correctly, ensuring a uniform, seamless seal across brick, block, timber, and steel.
When you are chasing 0.6 ACH (Air Changes per Hour), equipment reliability is not a luxury; it is a necessity.

The Missing Link: Spray Plant UK
Graco makes the best machines, and we make the best membrane. But how does a self-builder get access to professional-grade equipment and know how to use it?
Enter Spray Plant UK, our trusted equipment partner.
Buying a professional Graco rig for a single self-build project is not always practical. Spray Plant UK bridges that gap by making professional results accessible to the DIY market.

How This Partnership Helps You Build Better
- Hire or Buy: Professional applicators can purchase the latest Graco units, while self-builders can hire the exact machine suited for Passive Purple (such as the Graco Mark V).
- Expert Setup: Machines are supplied with the correct tips, filters, and pressure settings for our products.
- Training & Support: Guidance and handover ensure you feel confident using the equipment and achieving professional results.

The Ultimate DIY Result
By combining Intelligent Membranes’ liquid technology with Graco’s engineering and Spray Plant UK’s support network, airtightness is no longer reserved for specialists.
A self-builder can now achieve better results in two days than a team of tapers could achieve in two weeks. It is faster, more reliable, and entirely within your reach.
Ready to spray your way to Passivhaus? Contact the team today to discuss your project requirements.