After much anticipation - especially following the disappointing news that Tamiya Mirror Paint is not coming to Canada - the third alternative is finally here. The Green Stuff World Brush-On Chrome arrived in store and we couldn't wait. We popped it open at the counter and went straight to the test plastics.

This test was done on unprimed plastic, straight out of the sprue - as close to a real-world modelling scenario as possible.

The reflectivity test - car grill next to a pencil. Very impressive for a brush-on product.

What It Is

Green Stuff World Brush-On Chrome is a hybrid acrylic - alcohol-based. That chemistry is what gives it the mirror-like finish, but it also means it behaves differently from a standard water-based acrylic. Understanding that difference is the difference between a streaky result and a genuinely impressive one.

One rule above everything else: surface preparation is the most important part of this process. The paint is so reflective that it will show every single surface irregularity underneath it. Any dust, scratches, mould lines, or texture will be visible in the final finish. Clean, smooth, prepared surfaces only.

Two Ways to Apply It - Two Very Different Results

We tested both brush application methods side by side. The difference in result is significant enough that technique is everything with this paint.

Traditional Brushing - Push & Pull

When applied with a traditional push-and-pull brush stroke - whether in a unified direction or not - the paint doesn't grab the surface cleanly. The result is streaky chrome with visible brush marks. The alcohol base means the paint moves and disturbs itself as you work over it, pulling up what's already laid down.

Traditional brush application on the car grill - streaking is clearly visible when the paint is pushed and pulled.

Dabbing - Load & Place

This is where the paint shines. Load the brush heavy and dab it onto the surface without dragging - place the paint rather than moving it. The result is a solid, undisturbed block of reflective chrome that settles flat and mirrors its surroundings properly. The reflective surface once applied this way is very close to a perfect mirror.

Wheel hub - dabbed application, flawless result

Wheel close-up - mirror reflectivity clearly visible

Surface Irregularities: The Honest Test

The car grill is the most honest surface in our test - it has raised texture, ejector pin marks, and mould seams that weren't removed before painting. As expected, the chrome picks up every one of them. The reflectivity is still impressive, but the underlying surface reads clearly through the finish.

This isn't a weakness specific to Green Stuff World's product - it's a property of any mirror-finish chrome. The lesson is the same one that applies to all chrome work: the prep is the paint job.

Decal sheet numbers reflected in the surface - but texture irregularities are clearly visible too

Surface irregularities clearly visible - still highly reflective

Where It Excels: Small Parts

On small, smooth parts the dabbing technique delivers results that rival much more complex chrome processes. The wheel hub and wrench are the standout examples from our test - clean, mirror-flat, and applied in seconds.

Wheel, wrench, and grill together - small parts shine

Wrench close-up - the dabbing technique at its best

Clear Coating: Proceed with Caution

Green Stuff World Brush-On Chrome can be clear coated like any other chrome paint product. However - you're doing it at your own peril. This applies to all chrome paints, not just this one: any clear coat applied over chrome will dampen and change the luster. The reflectivity will be reduced and the mirror quality will be visibly affected, regardless of whether the clear coat is gloss, satin, or matt.

The Verdict

Green Stuff World Brush-On Chrome is a genuinely strong product when used correctly. The key points from our test:

Surface prep is non-negotiable. Smooth, clean, dust-free. Any shortcut here will show.

Dab, don't brush. Load the brush heavy and place the paint. Do not drag it.

Best on small parts. Wheel hubs, headlights, hydraulic struts, tool handles, chrome trim. For larger areas, use an airbrush.

Don't clear coat it. You can, but any clear coat will dull the mirror finish. Apply it and leave it alone.

The reflectivity is genuinely impressive. On a well-prepped small part, this is as close to mirror chrome as a brush-on product gets.

Green Stuff World Brush-On Chrome is in stock at Wheels & Wings Hobbies in Toronto, available online with Canada-wide shipping.