United States & Canada - EN

Neutral 40

logo Guardian
What's your challenge?
Design with glass

From anti-reflection to color tints, modern glass enhances design in many ways.

Build with glass

Whatever the construction challenge, we have the glass to help meet it.

Glass for your home

See how the correct choice of glass can help transform a home – and even our wellbeing.

Highlights
7 St. Thomas

Curved glass contributes to harmony between Victorian and contemporary design

Midlands Technical College Library

When glass helps to create a comfortable learning environment

ARO - 242 West 53rd Street

Floor to ceiling windows provide light, transparency and sweeping views of Central Park

All our projects

From landmark construction projects to innovative residential builds, this is how our glass can make the difference

Highlights
Our story

Just as we were in 1932, we're ready to meet the challenges of now and the future

Sustainability

Find out more about how glass can support sustainable design

Quality control

We strive for quality in everything we do

Our company

Learn more about who we are

Help and contact

Our expertise and commitments

Highlights
Glass Analytics

Access our comprehensive suite of engineering and analytical tools

BIM objects

Download and use our standardized Guardian BIM content to create project specific BIM files

Seminars and online learning

For anyone who is interested in learning more about glass and its use

Versatile design options without compromise

SunGuard Neutral 40 coated glass combines excellent solar control, thermal insulation and a variety of manufacturing options in one. With a neutral gray/silver reflected appearance on clear glass, Neutral 40 coated glass offers flexibility to create unique designs without compromising performance.

Product information
Substrates
  • Green 6 mm
  • Clear Float 5-12 mm
Applications
  • Windows
  • Skylights
  • Facades
  • Curtain walls
  • Doors
Manufacturing Options
  • Heat Strengthened
  • Heat Soaked
  • Annealed
  • Tempered
  • Bent
Recommended Coating Positions
  • Triple Glazed: #2 surface
  • Double glazed: #2 surface
Maximum Size
  • 102"x144"
Edge Deletion
  • Yes
Glass Type
  • Low E
Glass Functions
  • U-Value Benefit
Fabrications
  • Must be used in an Insulating Glass Units
Appearances

Visual Appearance

Use the Glass Visualizer to get an introductory understanding of how glass will appear in use. Use the Glass Analytics tools to explore even more options for color and performance.

Choose an option
There is only one substrate available for this product

View

This tool intended to represent the reflected/transmitted color ; however, glass color cannot be accurately portrayed online. Please see color disclaimer at bottom of the page.

Original Image
Modified Image

You need more information and additional mockups? Consult our Glass Visualizer Tool:

Can’t find the glass make-up you are looking for? Go to Glass Analytics for more detailed configurations:

Find the Guardian Glass supplier nearest you