Many sheet metal and metal cabinet manufacturers are still using traditional liquid coatings, such as epoxy systems, for corrosion protection.

But on the production side, several issues are clear —

high material waste, low efficiency, and slow curing.

Liquid systems typically have a coating utilization rate of only around 60%,

with significant losses to the floor and exhaust system.

And drying can take two to three days, blocking the production line and delaying delivery.

In fact, the coating technology for sheet metal protection has already advanced.

What we’re using now is a one-coat epoxy powder system —

it serves as both primer and topcoat,

offering a more balanced performance and a simplified process.

Powder coatings achieve a 99% utilization rate,

can be recycled and re-sprayed,

and cure in just 15 minutes —

allowing a full automated line from spraying to baking.

More importantly, they deliver excellent adhesion and corrosion resistance.

We Mengneng have conducted a 4200-hour cyclic aging test,

with no blistering, cracking, or rusting observed.

By protection-level equivalence, that’s roughly over 20 years of corrosion resistance.

Being solvent-free, the epoxy powder system emits no VOCs,

making it more environmentally friendly and fully aligned with today’s green manufacturing standards. Overall,

this powder-based one-coat system not only improves efficiency and reduces energy consumption, but also enhances the durability and visual consistency of sheet metal products.