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Sika Sikaflex 1A Black 20oz Sausage 91003
Sikaflex-1A Black is a moisture-cured non-sag polyurethane in a 20 oz sausage. It seals joints up to 1/2 inch and stays elastic through weather, traffic, and dissimilar-material movement.
- Black non-sag polyurethane in a 20 oz sausage
- Damp concrete can be sealed 1 hour after standing water is gone
- Jet-fuel resistant joint sealant with ±35% movement
$12.13
Availability:
In stock
( 152 Available )
Sikaflex-1A Black
Sikaflex-1A is a moisture-cured non-sag polyurethane joint sealant. This Black 20 oz sausage (part 91003) 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. Weathering resistance is excellent, and the sealant is ready to place from 40 F to 100 F. Unopened sausage shelf life is 18 months.
Key Features
- Moisture-cured 1-component non-sag polyurethane
- Black 20 oz sausage, part 91003
- Excellent weathering; service -40 F to 170 F
- Jet-fuel resistant
- Tack-free in 3 to 6 hours at 73 F
- 18-month sausage shelf life
Applications
- Vertical and horizontal joints placed from 40 F
- Traffic joints with 1/2 inch sealant depth
- Dissimilar materials with different expansion rates
- Roofing details, flashing, and construction adhesive work
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | Sikaflex-1A |
| Part no. | 91003 |
| Unit | 20 oz sausage |
| Color | Black |
| Movement | ±35% (ASTM C719) |
| Elongation | 550% (ASTM D412) |
| Tear strength | 55 lb/in (ASTM D624) |
| Service temperature | -40 F to 170 F |
| Shelf life | 18 months (sausage) |
Product documents: Sikaflex-1A Product Data Sheet (PDF)
Frequently Asked Questions
What weathering does Sikaflex-1A Black have?
Excellent resistance to aging and weathering. Service range is -40 F to 170 F. White can yellow in UV; this sausage is black.
What size is Sikaflex-1A Black?
The sausage is 20 oz (600 ml), part 91003.
What immersion wait does Sikaflex-1A Black need?
A 1-week cure at standard conditions before total water immersion. Primer is usually skipped except where testing or immersion calls for it.
What tack-free time does Sikaflex-1A Black have?
3 to 6 hours at 73 F and 50% RH. Cure is 4 to 7 days; skin is up to 1/8 inch after 24 hours.
What application temperature does Sikaflex-1A Black need?
40 F to 100 F. Condition the sausage to 65 F to 75 F before placing. Cold-weather units are conditioned at approximately 70 F.
What primer does Sikaflex-1A Black need?
Most substrates bond without primer. Prime when testing shows a need or when the joint will sit in water after cure.
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