Why prefinished panels are reshaping interior delivery

Bates Surfaces has been contract coating for New Zealand panel product manufacturers for over 70 years, with the largest and most advanced UV line in the country. They are known for their quality and speed, with the capacity to produce 10,000sqm per day for some products, producing consistent quality batch after batch.

“At the core of our service is delivering either pre-primed or fully finished panels ready for installation,” explains CEO Andre Bates and third generation in the business. “In practical terms, it removes multiple steps from the construction sequence, such as coordinating painters, managing drying times, and accounting for variable site conditions. The UV line ensures higher durability and better environmental credentials than traditional solvent-based lacquering.”

Prefinishing responds to the common industry needs of right time, right day, right price and right quality. 

What makes this scalable is the variety of substrates now available for coating in controlled environments. From MDF and plywood to fibre cement and veneers to composite panels, coatings are no longer limited by material type.

The UV advantage

Central to this shift, Andre explains, is UV curing technology. Unlike traditional water-based or solvent-based systems, which are often hand-sprayed and rely on heat to dry, UV coatings cure under light. In an industrial context, this enables something far more significant: speed and precision at scale.

A production line can take a raw panel through multiple coating stages and deliver a finished product in minutes. This is done with a high degree of accuracy, reducing ‘cause and effect’. In other words, any panel irregularities are spotted immediately and corrected. 

But speed is only part of the equation, as UV systems also address five critical concerns in specification:

1. Environmental performance: The UV coatings Bates use are VOC–free free, avoiding the emissions associated with solvent-based systems during the process, curing and on site.
2. Material performance: The resulting surfaces are harder, more durable, and achieve higher consistency in gloss, colour and finish.
3. Energy efficiency: Reduced carbon footprint for greater sustainability credentials. Most of the energy-heavy processes of curing traditional solvent-based paints have been removed with UV technology.
4. Low wastage and repeatability: Any irregularities are spotted immediately and fixed, which keeps waste to an absolute minimum.
5. Fixed pricing: For one-off projects and/or regular batch orders for contract coating.

Designed for consistency

One of the most persistent challenges in interior projects, notes Andre, is achieving uniformity across large surface areas. Variations in paint batches, application methods and site conditions can all compromise the final result.

Factory-applied coatings remove this uncertainty, as a machine makes the same product time after time. This becomes especially critical in high-value applications. “Our QA system has very tight controls of colour and gloss, which reduces the potential for variation in surface finishes. Along with the fact that UV minimises these issues in the first place. It’s all about consistency," says Andre.

It’s here where Bates Coating’s rigorous testing plays a defining role. Adhesion, abrasion resistance, UV stability and gloss levels are all measured, verified and even independently reviewed. In many cases, coatings are subjected to accelerated testing regimes to simulate years of wear in an accelerated timeframe.

​“A panel may leave a factory at a modest cost, but once installed, integrated with joinery, fixtures and surrounding finishes, its value multiplies.” 

A flawless finish, delivered consistently, reduces the risk of rework and enhances the longevity of the installation.

Design flexibility at scale

While large-scale manufacturing often implies rigidity, Bates has designed their line so it can manage multiple different products in any one week. This flexibility means Bates provides multiple application options for panel manufacturers. In markets like New Zealand, demand volumes are smaller and more varied than in Europe or UA, so this adaptability is essential.

“Our production line might shift between pre-priming tens of thousands of square metres of MDF one week, and delivering high-end, pre-finished panels the next,” notes Andre.

It opens the door to just-in-time production. Rather than holding large inventories of prefinished panels in multiple colours, suppliers can stock base materials and apply finishes as needed. For clients, this reduces storage costs, minimises waste and improves responsiveness to changing design requirements.

For architects and designers, coatings are a medium for expression, with UV coating systems allowing for:

• A full spectrum of gloss levels, from ultra-matte to high gloss
• Clear and solid colours
• Digital Print imagery from ceramic tile imagery to branding and one-off feature walls.
• Soft-touch, fingerprint-resistant finishes
• Antibacterial surfaces for healthcare and food environments
• Special effects, including digital printing and surface texturing

Despite these advancements, one misconception persists, according to Andre: the cost of prerefinished panels.

In reality, they often deliver cost efficiencies, particularly for high-spec finishes. On-site painting introduces labour costs, project delays and variability compared to factory finishing, Bates Surface consolidates these into a controlled, repeatable process.

The value proposition becomes even clearer when quality is factored in. A flawless finish, delivered consistently, reduces the risk of rework and enhances the longevity of the installation.

Ultimately, UV coatings reflect a shift in the construction industry, from fragmented, site-based processes to integrated, off-site solutions.

Learn more about Bates Coatings on ArchiPro.