🧊 Cardinal Glass & Super Spacer® — Package Guide
The coating controls solar heat — not just heat loss. Pick the solar strategy first, then pane count, argon fill, and Super Spacer®.
COLDEST / PASSIVE SOLAR
LoĒ-180
Welcomes winter sun · No Neat+
SHGC 0.69 · VT 79% · U 0.26
BALANCED / FOUR SEASONS
LoĒ²-272
Moderates summer heat · Neat+ free
SHGC 0.41 · VT 72% · U 0.25
HOT SUN / FADE CONTROL
LoĒ³-366
Rejects more solar heat · Neat+ free
SHGC 0.27 · VT 65% · U 0.24 · UV 5%
✨ Neat+ (included free on 272 & 366)
- 40% less dust vs. uncoated glass
- 25% more photoactive than original Neat
- ≈3× faster drying after UV exposure
- Does not change VT, SHGC or thermal performance
🧱 Super Spacer® — flexible warm edge
- All-foam, no metal → warmer glass edge
- Flexes with temperature cycling → lower seal stress
- Dual-seal design supports argon retention
- Clean, narrow, continuous sightline
💨 Argon fill (90% argon / 10% air)
LoĒ-180
U 0.31 → 0.26
LoĒ²-272
U 0.30 → 0.25
LoĒ³-366
U 0.29 → 0.24
📐 Double vs. Triple Pane
Double IG — 2 panes, 1 argon cavity, 7/8″ overall. Standard sealed unit with Cardinal LoĒ + Super Spacer®.
Triple IG — 3 panes, 2 argon cavities, 1 3/8″ overall. Example: LoĒ³-366 + clear + LoĒ-180 reaches U 0.13 (center of glass).
Values shown are center-of-glass on 3 mm double-pane IGU with 13 mm cavity and 90% argon. Whole-window ratings depend on frame, size, Super Spacer profile and configuration. Sources: Cardinal CG09–12/24, CG04–06/24 · Quanex Super Spacer dual-seal.
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