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Sika Sikaflex 1A Aluminum Gray 20oz Sausage 91002
Sikaflex-1A Aluminum Gray is a moisture-cured non-sag polyurethane in a 20 oz sausage. It seals joints up to 1/2 inch, including green and damp concrete, and bonds without a primer on most substrates.
- Non-sag polyurethane for joints up to 1/2 inch
- Bonds to green concrete 24 hours after the pour
- Holds plus or minus 35% movement without a primer
$12.13
Availability:
In stock
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Sikaflex-1A Aluminum Gray
Sikaflex-1A is a moisture-cured non-sag polyurethane joint sealant. This Aluminum Gray 20 oz sausage (part 91002) is for joints up to 1/2 inch, including green and damp concrete. It holds ±35% movement and bonds to most construction materials without a primer. Paintable after a 7-day cure, and green concrete can be sealed 24 hours after the pour. Unopened sausage shelf life is 18 months.
Key Features
- Moisture-cured 1-component non-sag polyurethane
- Joints up to 1/2 inch, vertical or horizontal
- Green concrete 24 hours after pour; damp concrete after 1 hour
- Plus or minus 35% movement (ASTM C719)
- Bonds to most construction materials without a primer
- 20 oz sausage, part 91002, Aluminum Gray
Applications
- Construction joints where sealant depth stays at 1/2 inch max
- Windows, door frames, reglets, and flashing
- Green and damp concrete joints
- Canal and reservoir joints after a 1-week immersion cure
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | Sikaflex-1A |
| Part no. | 91002 |
| Unit | 20 oz sausage |
| Color | Aluminum Gray |
| Movement | ±35% (ASTM C719) |
| Shore A 21 day | 45 +/- 5 (ASTM C661) |
| Tack-free | 3 to 6 hours at 73 F |
| Cure | 4 to 7 days at 73 F |
| Application temperature | 40 F to 100 F |
Product documents: Sikaflex-1A Product Data Sheet (PDF)
Frequently Asked Questions
What joints use Sikaflex-1A Aluminum Gray?
Joints where sealant depth stays between 1/4 inch and 1/2 inch, including windows, door frames, reglets, flashing, and green or damp concrete.
What size is Sikaflex-1A Aluminum Gray?
The sausage is 20 oz (600 ml), part 91002.
What green-concrete wait does Sikaflex-1A Aluminum Gray need?
24 hours after the pour at 75 F. Control joints are cut 8 hours before sealing; expansion-joint forms come off 4 hours before. Damp concrete waits 60 minutes after standing water is gone.
What movement does Sikaflex-1A Aluminum Gray hold?
Plus or minus 35% of average joint width (ASTM C719). Shore A is 45 +/- 5 at 21 days (ASTM C661).
What paint window does Sikaflex-1A Aluminum Gray have?
Water-, oil-, and rubber-based paints after a 7-day cure. Compatibility and adhesion tests are still required before coating.
What potable-water service does Sikaflex-1A Aluminum Gray have?
Certified to NSF/ANSI/CAN 61. Not for swimming pools or submerged work with strong oxidizers, and continuous chlorine stays at 5 ppm max.
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