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Sika Sikaflex 1A Capitol Tan 20oz Sausage 91004
Sikaflex-1A Capitol Tan is a moisture-cured non-sag polyurethane in a 20 oz sausage. It seals windows, door frames, and flashing up to 1/2 inch and bonds without a primer on most substrates.
- Capitol Tan 20 oz sausage for windows, doors, and flashing
- Readily placed at 40 F on vertical and horizontal joints
- Paintable after a 7-day cure with water-, oil-, or rubber-based paints
$12.13
Availability:
In stock
( 224 Available )
Sikaflex-1A Capitol Tan
Sikaflex-1A is a moisture-cured non-sag polyurethane joint sealant. This Capitol Tan 20 oz sausage (part 91004) is for joints up to 1/2 inch on windows, door frames, flashing, and common roofing details. It holds ±35% movement, bonds without a primer on most substrates, and is readily placed at 40 F. Peel adhesion is 20 lb on concrete, aluminum, and glass with 0% adhesion loss.
Key Features
- Moisture-cured 1-component non-sag polyurethane
- Capitol Tan 20 oz sausage, part 91004
- Peel adhesion is 20 lb on concrete, aluminum, and glass
- Certified to NSF/ANSI/CAN 61 for potable water
- Suggested by EPA as a caulk and crack sealant for radon reduction
- 18-month sausage shelf life
Applications
- Windows, door frames, and reglets
- Flashing and common roofing details
- Small joints and fillets
- Elastic adhesive between dissimilar materials
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | Sikaflex-1A |
| Part no. | 91004 |
| Unit | 20 oz sausage |
| Color | Capitol Tan |
| Movement | ±35% (ASTM C719) |
| Peel adhesion | 20 lb concrete / aluminum / glass |
| Tensile 21 day | 175 psi (ASTM D412) |
| Application temperature | 40 F to 100 F |
| Joint depth | 1/4 inch min to 1/2 inch max |
Product documents: Sikaflex-1A Product Data Sheet (PDF)
Frequently Asked Questions
What window work uses Sikaflex-1A Capitol Tan?
Windows, door frames, reglets, flashing, small joints, fillets, and common roofing details. Joint depth stays between 1/4 inch and 1/2 inch.
What size is Sikaflex-1A Capitol Tan?
The sausage is 20 oz (600 ml), part 91004.
What adhesion does Sikaflex-1A Capitol Tan show?
20 lb peel on concrete, aluminum, and glass with 0% adhesion loss (ASTM C794 / TT-S-00230C). Tensile at 21 days is 175 psi (ASTM D412).
What joint depth does Sikaflex-1A Capitol Tan need?
Minimum 1/4 inch and maximum 1/2 inch. Design is 2:1 width to depth. Traffic joints hold 1/2 inch depth with closed-cell backer rod.
What NSF approval does Sikaflex-1A Capitol Tan have?
Certified to NSF/ANSI/CAN 61 for potable water. It is also suggested by EPA as a caulk and crack sealant for radon reduction.
What substrates should Sikaflex-1A Capitol Tan avoid?
Bituminous and asphaltic materials. Do not tool with detergent or soap. Avoid alcohol and solvent cleaners during cure, and do not cure next to curing silicone.
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