Krylon Looking Glass Mirror Spray: Honest Review (2026)

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Verdict: ★ 3.5 / 5

Okay, so the question everyone asks first: does this stuff turn glass into a mirror? Yes and no. Krylon Looking Glass lays down a silver, mirror-like coating that reflects like a real mirror at a glance and looks slightly soft and hazy if you stare. For decor, picture frames, vases, faux-antiqued mirrors, and craft glass, it’s genuinely fun and it works. For a mirror you actually use to look at your face, it’s not that, and Krylon never claims it is.

The trick is that it goes on the back of the glass, not the front. Once you get that one idea, the product makes sense. It earns the half-star deductions on durability and on how fussy it is about clean glass and humidity. Get those right and you’ll be happy with it.

Buy this if: you’re making a decorative mirror, mercury-glass style vases, or a craft project and you want a quick reflective silver look on clear glass. Skip this if: you need a real working mirror, a scratch-proof surface, or you want to coat anything other than glass.

What Is Krylon Looking Glass?

Krylon is the spray-paint brand most people grab off the craft-store shelf without thinking twice. It’s owned by Sherwin-Williams now, and it sells everything from flat-black grill paint to glitter blast to chalky-finish furniture spray. Looking Glass sits in the craft and specialty corner of that lineup. It’s not a wall paint, not a primer, not a tool. It’s a single-purpose effect spray.

Here’s the thing it actually does. Looking Glass is a silver, solvent-based aerosol that, sprayed onto the reverse of clear glass, creates a reflective, mirror-like surface when you look through the front. Real mirrors are made the same way: the silvering lives behind the glass, and the glass protects it. Krylon is giving you a craft version of that idea in a 6-oz can. You’re not painting the side you look at. You’re painting the side you don’t, and the glass does the rest.

Which Krylon “Glass” Spray Do You Need?

Krylon sells a few sprays with “glass” in the name and they do completely different jobs. People buy the wrong one constantly, so before you check out, make sure you grabbed this one.

If you wanted a mirror and you came home with Frosted Glass, that’s the mix-up. Frosted goes on the front and makes glass cloudy. Looking Glass goes on the back and makes it reflective. Different sides, different results.

Spec Sheet

A note on that coverage number. Seven square feet per can sounds like a lot, but mirror effect lives or dies on thin, even, layered coats. You’ll use more than you expect chasing a smooth look, so buy two cans if you’re doing anything bigger than a small frame.

How It Scores, Attribute by Attribute

What It’s Good At

• The mirror illusion is convincing from across a room. I sprayed a thrifted clear-glass candle holder and set it on a shelf, and from the couch it reads as a little silver mirror-glass vase. You’ll know it when you see it: the reflection is bright, the silver is even, and nobody walking past asks what it is. That across-the-room read is the whole point of the product.
• It makes faux-antiqued “mercury glass” easy. This is where Looking Glass shines for crafters. Mist water or a little vinegar onto the back of the glass before you spray, let it bead, then spray over it. Where the water sits, the silver doesn’t fully take, and you get that mottled, aged, vintage-mirror look on purpose. It’s a forgiving project because the imperfections are the style.
• Fast turnaround. Touch dry in about 15 minutes, handle in 30. For a craft project you can spray a few light coats on a Saturday morning and have a finished piece by lunch. You’re not waiting days the way you do with a cabinet enamel.
• No primer step. You spray straight onto clean glass. There’s no sanding, no bonding primer, no taping off a substrate. The prep is “clean the glass really well,” and that’s it.

What It Falls Short On

This is the honest part, and it’s the part the cheery YouTube videos skip.

• The finish is soft and scratches easily. The silver coating is delicate. A fingernail will mark it, and that’s the single biggest letdown for people expecting a tough mirror. It needs to live behind the glass, untouched, or get sealed with a backing coat. Anything that gets handled or wiped on the silver side will dull within weeks.
• Water is its enemy. Standing water hazes the coating and can leave permanent cloudy spots. So a Looking Glass tray, coaster, or anything near a sink is a setup for disappointment. Keep it dry and keep it decorative.
• It’s fussy about clean glass and humidity. Any fingerprint, dust speck, or fiber under the spray shows through the front as a dark fleck forever. And a humid day gives you a milky, blotchy coat that won’t smooth out. Spray it on a dry day, on glass you cleaned twice, or you’ll be stripping it off and starting over.
• One color, one surface. It’s silver, full stop, and it’s glass only. Don’t believe a project that promises a mirror on plastic or a picture-frame backing board. On non-glass surfaces you get gray paint, not reflection.

A Word on the Smell and Safety

This is a solvent-based aerosol, so it’s not the low-odor, wipe-up-with-water kind of product. The fumes are strong, the overspray drifts, and cleanup is mineral spirits, not soap. Don’t worry, it’s not exotic, it’s just a real spray paint. Use it outside or in a garage with the door open and a fan, wear a mask rated for solvents, and lay down more drop cloth than you think you need. Aerosol overspray travels and settles on everything within a few feet.

Who It’s for / Not For

Buy this if: you’re a crafter or DIY decorator making a faux-vintage mirror, mercury-glass vases, reflective ornaments, or a glass-front frame, and you understand it goes on the back and stays as decor.

Skip this if: you need a real mirror to use, you want a hard scratch-proof finish, you’re coating anything that isn’t glass, or the piece will get wet or handled. For a working mirror, buy an actual mirror. For a tough finish on glass that gets touched, this isn’t the product.

Honest Alternatives

Cheaper: Rust-Oleum Specialty Mirror Effect ($8–11 per can)

Rust-Oleum’s near-identical competitor, often a dollar or two less and easier to find at big-box hardware stores. Same idea, same back-of-glass method, same soft finish. Reviewers split on which lays down smoother, and it’s genuinely a coin toss. If your store stocks Rust-Oleum and not Krylon, grab it without worry. → Read more Rust-Oleum reviews

Pricier upgrade: A real silvered mirror, cut to size

If you want a flawless reflection you can actually use, no spray competes with an actual mirror. A glass shop will cut a mirror to your frame for $20–40, and it’ll be sharp, durable, and water-safe. Spend the money here when the mirror has a real job to do, not just a decorative one.

Specialty: Krylon Frosted Glass or Sea Glass ($8–12 per can)

If what you actually wanted was a soft, frosted, etched-glass privacy look (not a reflection), Krylon Frosted Glass is the right can. Sea Glass gives you a pale, beachy tint. Both go on glass and are far more durable on the visible side than Looking Glass, because they’re meant to be touched. For help deciding between a brushed-on finish and an aerosol on small pieces, see our brush vs spray breakdown.

Where to Buy

Buy it at a craft store if you have one nearby, because the weekly coupon usually beats the online price and you can grab a second can in case the first coat goes wrong. For comparison shopping on craft-surface sprays in general, our best spray paint for plastic and craft surfaces guide covers the whole category.

FAQ

Does Krylon Looking Glass actually make a real mirror? Sort of. It makes a mirror-like reflective silver coating, not a true bathroom mirror. Spray it on the back of clear glass and you get a soft, slightly cloudy reflection that looks great as decor and a little hazy if you expect a flawless face-checking mirror. For crafts and faux-vintage glass, it reads as a mirror. For shaving, it won’t satisfy you.

Which side of the glass do you spray? The back. You spray the reverse side and look through the clean front, the same way a real mirror is silvered behind the glass. If you spray the front, you’ll touch and scratch the soft coating and it dulls fast. Clean the front before you start so no smudges get sealed in under the reflective layer.

Why does my Looking Glass finish look streaky or spotty? Almost always one of three things: the glass wasn’t perfectly clean, the coats were too heavy, or the room was humid. Light dusting coats from about 12 inches, a spotless glass surface, and a dry day under 60% humidity fix most of it. Spotty texture is sometimes the look people want for antiqued mirror, so test on scrap first.

Is Looking Glass durable enough for a tabletop or tray? Not on its own. The silver layer is soft and scratches with a fingernail, and water sitting on it will haze it over time. For anything that gets handled or wiped, spray the back and seal it with a backing coat, and keep it as decor rather than a working surface. It’s a craft and decor finish, not a hard-wearing one.

Related

• Every Krylon spray paint we’ve reviewed →
• Best spray paint for plastic and craft surfaces →
• Brush vs spray: which finish for small projects →