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Overview & Benefits
A clear and durable alternative to pyrolitc hard coats.
Ideal for doors and entryways, Neutral 70 delivers superior mechanical and chemical durability compared to other sputter-coated low-E glass. And its performance is far superior to pyrolytics:
- Lower haze
- Lower reflectance
- Lower U-value
Neutral 70 is fabricator-friendly with an extended shelf life and no handling limitations. It can be cut, heat-strengthened and treated like a normal sheet of glass.
Low-E Glass Products | Visible Light | U-Value | |||||
| Trans | Reflect Out | Reflect In | UV Trans | SHGC | Argon | Air | |
| Guardian Neutral 70 | 70% | 12% | 12% | 48% | 0.674 | 0.290 | 0.331 |
| Pilkington Energy Advantage™ | 77% | 17% | 17% | 55% | 0.755 | 0.296 | 0.336 |
| AGC Comfort E2™ | 76% | 16% | 14% | 44% | 0.735 | 0.309 | 0.348 |
| PPG Sungate® 500 | 76% | 18% | 17% | 49% | 0.707 | 0.312 | 0.351 |
| I.G.U. Construction: 3.0mm Clr, 1/2" Air Space, 3.0mm Clr: Air and Argon Filled Units, Low-E #3 Surface Performance data calculated using LBNL Window 5.2, IGDB 18.1 | |||||||
An ideal choice for between-the-glass blinds.
Guardian Neutral 70 is a perfect alternative to pyrolytic glass for windows and doors with between-the-glass blinds. That’s because Neutral 70 stands up to the wear and tear of the constant up-and-down friction of blinds against the glass. This friction can create unsightly dust that’s difficult to clean. With Neutral 70, dust doesn’t build up between the lites and the blinds stay clean and new-looking longer.
Next: Click on the Performance Data tab above to see more info for Guardian Neutral 70.
Performance Data
Guardian Neutral 70 Performance
Guardian Neutral 70 is designed to for durability. As shown below, it can be used in multiple configurations to meet the needs of many applications.
Double Glazed |
Visible Light | U-Value | |||||||
| Trans | Reflect Out |
Reflect In |
UV Trans |
UV Tdw |
SHGC | Argon | Air | ENERGY STAR Zones |
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| Guardian Neutral 70 (#2) | 70% | 12% | 12% | 48% | 64% | 0.559 | 0.290 | 0.331 | N |
| Guardian Neutral 70 (#3) | 70% | 12% | 12% | 48% | 64% | 0.674 | 0.290 | 0.331 | |
| Guardian Neutral 70 (#2) + IS-20 (#4) | 68% | 12% | 13% | 45% | 62% | 0.537 | 0.235 | 0.266 | N |
| Guardian Neutral 70 (#2) + IS-15 (#4) | 66% | 12% | 11% | 39% | 57% | 0.501 | 0.229 | 0.258 | |
Triple Glazed |
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| Guardian Neutral 70 (#2) + 71/38 (#5) | 55% | 14% | 12% | 17% | 44% | 0.391 | 0.178 | 0.227 | N |
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I.G.U. Construction: Double glazed: 3.0mm Clr, 1/2" Air Space, 3.0mm Clr: Air and 90% Argon/10% Air Filled Units Triple glazed: 3.0mm Clr, 5/16" Air Space: 3.0mm Clr, 5/16" Air Space, 3.0mm, Air and 90% Argon/10% Air Filled Units * In a broad selection of representative windows. Criteria is based upon total window performance of which glass performance is a contributor. |
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Current ENERGY STAR Standards
