Leather edge or flexible frame mirror: which to make on a tight deadline

In the second challenge of Arena do Vidro I gave Janael and Rômulo 10 minutes. Make a mirror in any shape, with any material, cut by hand, and hand it to me finished. It sounds like plenty of time if you've never handled a mirror. If you're in the trade, 10 minutes is nothing: you have to pick the shape, score, cut, break it out and still finish the edge.

The finish is where the two split. Janael made a leather edge mirror with EVA foam underneath. Rômulo started out talking about leather too, but switched to a flexible frame. That choice, which every glazier makes at the counter almost every day, is what this post is about.

A decision in seconds: the shape

Janael put it well: "given time, you do it calmly, but under pressure, with 10 minutes, it was hard". The shape had to come on the spot. Watching from outside, the judges agreed on one thing: a basic circle or square won't cut it. To impress in 10 minutes, they'd go with a simple abstract figure, an organic shape that stands out but has no curves so tight they're hard to cut and break out by hand.

That applies in a glass shop too. When the customer wants something different and the deadline is short, an organic shape with open curves gives the special-piece effect without the risk of a sharp inside curve, which is where mirrors tend to break.

Leather edge over EVA: two steps, more impact

A leather edge mirror isn't just a strip glued on. Janael described the process: come up with the shape, cut it, glue the EVA, then lay the leather over it. Each step depends on the one before, and each takes glue time and fitting around the curve. He said himself he didn't think he'd make it.

At the judges' table the math was simple. One of them said he actually likes the leather finish better, but wouldn't go for it in 10 minutes: gluing the backing for the leather strip and then gluing the strip are two steps, and two steps in that time is a risk. Another judge would go with EVA and leather anyway, quickly. In other words, even the panel didn't agree, which shows there's no one right answer.

Flexible frame: the choice of someone watching the clock

Rômulo went with time logic. In his words, the flexible frame "saves me from edging the glass". It makes sense: the frame wraps the edge and hides the cut, so you skip edging, which is exactly the step that eats the most time and causes the most trouble on a hand-cut piece.

But the faster option on paper isn't always faster at the bench. During the judging, one judge said Rômulo thought the frame would be easier and then struggled with it. Janael, who took the hard road, seamed the edge and delivered. Anyone who has fitted a flexible frame on a curve knows: if the cut isn't even, the frame shows every wobble.

The verdict and the lesson for your shop

The panel preferred Janael's mirror. Natan said that if he had to buy one of the two, he'd buy his. And one judge summed it up: the leather with EVA behind it has more visual impact. The one who risked two processes and still delivered on time won the panel over.

• Short deadline and a budget-minded customer: flexible frame, as long as the cut is clean.
• Customer who wants a statement piece: leather edge over EVA, and charge for the extra gluing and assembly time.
• Shape: skip the basic circle and square when the goal is to impress, but avoid tight inside curves if you're cutting by hand.
• Before you promise a deadline, count the steps. Every layer of finish is one more step that can run late.

How long did the contestants have to make the mirror in EP2?

10 minutes, any shape and material, cut by hand. After that came the challenge of selling the mirror on the street.

Does a flexible frame mean no edging?

That was Rômulo's reasoning: the frame covers the edge, so he wouldn't need to edge it. But the cut has to be even, or the frame won't sit well on the curve.

Which mirror did the judges prefer?

Janael's, with the leather edge over EVA. The panel felt it had more visual impact, and he managed both processes within the 10 minutes.

The full episode 2 is on YouTube, and I broke down the street-selling part in another post. If you run a glass shop and want to show what you can do at the bench, applications for the next season are open here on the site.

Full episode 2 · How to sell a mirror on the street in 35 seconds · How to edge a mirror without dust

Episode 2