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How to Choose the Right Convex Mirror

Posted by Safety Xpress on

This guide on convex mirrors will help you figure out the need and application of convex mirrors. We will also help you make an informed decision about which convex mirror is right for your application.

Let’s dive in.

A convex mirror also known as safety mirror is a curved mirror where its bulging side faces the source of light. Here, the image of the object gets larger as and when it approaches the mirror.

Basic use of a convex mirror is to enhance safety and decrease the risk of collisions and other unfavourable incidents.

Convex Mirror - Types and Application

There are different types of convex mirrors to choose from. As every convex mirror has a distinct purpose, it is important to make a right choice.


  • Convex Mirror Indoor/Outdoor
  • Full Dome Safety Mirror
  • Half Dome Mirror
  • Quarter Dome Mirror


Convex mirrors work best for both, indoor and outdoor applications. So, you should consider using them to upgrade safety on your premises.

  • Indoor Applications - Warehouse, shops, stores, markets and every place that observes heavy foot traffic
  • Outdoor Applications - Parking facilities, driveways, checkpoints, garages, factories, hospitals and places that have heavy pedestrian and vehicle traffic.

What Should You Consider While Choosing Convex Mirrors?

Here are the factors you should consider while buying a convex mirror:

    1. Indoor or Outdoor

Where are you planning to install the convex mirror? In case of an outdoor application, mirrors need to be resistant to both, corrosion and weather. Additionally, they must be free of frost and condensation.

The difference between choosing an indoor and an outdoor convex mirror is the support, weatherproof seals and the brackets. The indoor mirrors come with wood, chipboard or even with no support at all. The outdoor mirrors have to withstand the external elements; hence they usually have a weather-resistant backing.

      2. Distance and Angle

Placement of convex mirror, its size and shape matter a lot. Define your viewing distance and select a mirror of a size and curvature that fits your needs perfectly. Suppliers like us can help you with an expert advice in case you have any questions about distance and angle required.

      3. Material

Convex mirrors come in a range of materials including polycarbonate face and acrylic. Generally, convex mirrors that are used for both, indoor and outdoor applications are made of polycarbonate face. On the other hand, dome safety mirrors are majorly made of acrylic.

  • Polycarbonate - It has good reflective properties and is virtually unbreakable. It is recommended in places where high security is demanded.
  • Acrylic - It provides a clear reflection, withstanding strong impacts. It is recommended where convex mirrors are unlikely to be vandalised.

    4. Properties

While determining the right convex mirror, you may need to consider its properties, like:

  • Heat resistant
  • UV resistant
  • Frost resistant
  • Fog resistant
  • Self-cleaned

    5. Installation

You should also consider the installation options. Although, all our convex mirrors are really easy to install either on a wall or a post. They are supplied with a free post mount bracket so that they can be installed easily onto any standard post. If you need to install your convex mirror onto a wall, we can supply a wall mount bracket for a small additional cost.All you need is an impact drill with the right drill bit and a socket set to suit the bolts which we will supply.

Convex mirrors need to be installed more securely, especially when they are subjected to wind and changing weather conditions. Mostly, 2-3 mounting brackets are enough to ensure that your convex mirror stays sturdy regardless of weather conditions.


Which size of safety mirror do I need? The bigger the convex mirror, the more visible things will be.

You can determine the right size for your convex mirror by answering these questions:

  • What will you see in convex mirror?
  • How far will you be using the convex mirror?
  • Where will you install the convex mirror?
  • What is the maximum visibility you want from your convex mirror?

A good rule of thumb is - one foot of viewing is equal to one inch of the convex mirror. Let's take an example to explain this. If you are planning to place a convex mirror to view a distance of 25 feet, choose a safety mirror of 26 inches in diameter. This will suffice your need.

This handy guide below will give you more idea about the size of convex mirror:

Combined Viewing Distance Mirror Diameter
Up to 5 metres 300 mm
Up to 10 metres 450 mm
Up to 15 metres 600 mm
Up to 30 metres 800 mm
Over 30 metres 1000 mm

We have included a range of approximate visibility with each mirror on all our convex mirrors so that it makes it easier for you to decide which one will suit your needs best.

More about Indoor and Outdoor Convex Security Mirrors

Using a dome mirror depends on your application and usage. Consider getting:

  • Full Dome Mirror - if you are looking for a 360-degree view. It is ideal for 4-way intersection or retail premises
  • Half Dome Mirror - if you are looking for a 180-degree view. It is ideal for 3-way intersection or retail premises
  • Quarter Dome Mirror - if you are looking for a 90-degree view. It is ideal for corners or hallways

If you are still confused about choosing the right convex mirror, let experts help you. We at Safety Xpress can guide you with the right type of convex mirror for your application. Once you are clear about your choice, you can simply place an order for your convex mirror through our website www.safetyxpress.com.au.

The best part is, we are running a huge discount on our already low-priced convex mirrors. If you order before the end of August, you will get an extra 25% OFF. You can use promo code AUGSAFETY25 during checkout.

We can deliver anywhere in Australia. If you have any queries about convex mirrors, you can call us on 1300 049 246.

Convex Mirrors Sale! Extra 25% Off

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