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Emseal Backerseal
Emseal Backerseal is a Greyflex secondary foam seal packed on reels and as sticks for wall joints. It is placed behind liquid sealant on facades and masonry.
- +25% / -25% movement
- 13.12 LF and 6.56 LF reels, 6.56 LF sticks
- Charcoal grey
Backerseal, reels and sticks
Emseal Backerseal is a Greyflex precompressed acrylic-impregnated polyurethane foam used as a watertight secondary seal behind liquid sealant in wall joints. It is used on precast, brick, stone, metal, masonry control joints, EIFS, and as a mullion baffle. It is placed from reels or shrink-wrapped sticks, depending on width. Color is charcoal grey.
Key Features
- Greyflex secondary foam behind liquid sealant
- Reels and shrink-wrapped sticks by width
- Watertight backup if the primary seal is punctured
- Compatible with major wet sealants
- Charcoal grey acrylic impregnation
Applications
- Precast, brick, stone, and metal facades.
- Masonry control joints.
- Panelized cladding, window-wall, and skylights.
- EIFS.
- Vertical mullion baffles.
Technical Specifications
| Property | Value |
|---|---|
| Movement | +25% / -25% (50% total) |
| Pack, ≤5/8 in | 13.12 LF (4 m) reels |
| Pack, ≤1 in | 6.56 LF (2 m) reels |
| Pack, >1 in | 6.56 LF (2 m) sticks |
| Color | Charcoal Grey |
| Temperature | -40 F to 185 F |
| Thermal conductivity | 0.34 Btu·in/hr·ft²·°F, ASTM C518 |
| Water penetration | ASTM E331 passed to 20.88 PSF |
| Wind gust | ASTM E330 +62.66 / -56.39 PSF |
| Substrate backpressure | about 2.5 psi |
Documents
Frequently Asked Questions
What substrates is Backerseal placed on?
It is placed on precast, brick, stone, metal, masonry control joints, EIFS, and as a baffle in vertical mullions.
What is the reel and stick split of Backerseal?
Up to 5/8 inch on 13.12 LF reels, up to 1 inch on 6.56 LF reels, and over 1 inch as 6.56 LF shrink-wrapped sticks.
What is the role of Backerseal?
It is a watertight secondary seal behind conventionally installed liquid sealant, or behind a directly applied low-modulus liquid sealant.
What is the thermal conductivity of Backerseal?
0.34 Btu·in/hr·ft²·°F, ASTM C518.
What is the E331 listing of Backerseal?
Passed for water penetration up to 20.88 PSF.
What is the impregnation of Backerseal?
Greyflex water-based, stabilized acrylic impregnation in charcoal grey foam.
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