When customers choose Tomburn, they’re not just selecting a powder coating supplier – they’re investing in a process built around precision, consistency and uncompromising quality control. Every project that moves through our Hampshire facility is subject to a series of rigorous checks designed to ensure that the finished product not only meets expectations, but exceeds them.

Our approach to quality control can be understood across three key areas: the application process, independent quality assurance and final inspection of goods.

1. Application process: precision at every stage.

Quality begins on the production line. Throughout the coating process, continuous testing is carried out to ensure that every application meets exact specifications.

On-production line testing focuses on three critical factors:

• Film Thickness – ensuring coatings are applied evenly and within required tolerances.
• Colour – verifying consistency against customer specifications.
• Gloss – maintaining the correct finish level for both appearance and performance.

Beyond the production line, we conduct in-house laboratory testing on sample panels. This allows us to assess:

• Adhesion.
• Impact resistance.
• Flexibility.
• Permeability.

These tests simulate real-world conditions, ensuring coatings will perform as expected once in use.

In addition, our powder suppliers carry out their own laboratory testing, covering all of the above characteristics as well as corrosion resistance. This layered approach means quality is verified not just internally, but independently across the supply chain.

2. Independent quality assurance: holding ourselves accountable.

Maintaining high standards isn’t just about internal processes – it’s about external validation.

Tomburn is proud to hold Qualicoat approval, a globally recognised accreditation for powder coating quality. This involves:

• Two unannounced audits per year, ensuring standards are consistently upheld – not just when expected.

We also undergo:

• Annual audits by major powder suppliers, reinforcing compliance with industry best practices.
• Monthly pre-treatment chemical checks conducted by our pre-treatment supplier, ensuring the foundation of every coating is properly controlled.

These independent assessments ensure that every aspect of our operation remains aligned with the highest industry benchmarks.

3. Final checks: delivering confidence to customers.

Before any order leaves our facility, it undergoes a thorough final inspection.

Our team carefully verifies:

• Order quantities, ensuring accuracy and completeness.
• Product condition, confirming items are free from damage and meet our strict quality standards.

This final stage is critical. It ensures that when our customers receive their products, they arrive exactly as expected – ready for immediate use, with no compromises.

Quality you can rely on

At Tomburn, quality control isn’t a single step – it’s embedded throughout the entire process. From initial application to independent audits and final inspection, every stage is designed to deliver consistency, durability and peace of mind.

It’s this attention to detail that allows us to build long-term partnerships with our customers and maintain our reputation as a trusted powder coating specialist in Hampshire and beyond.

For more information on how Tomburn can assist with your commercial powder coating needs contact us today.