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Sika Sikaflex NP 1 Special Bronze 10oz Cartridge
Sikaflex NP 1 Special Bronze is a one-component polyurethane in a 10 oz cartridge. It seals parapets and masonry joints and typically bonds without a primer on concrete and masonry.
- Special Bronze 10 oz cartridge for parapets and masonry
- Plus or minus 35% movement without a primer
- Immersion primer is Primer-173 or Sikaflex Primer-429
$7.93
Availability:
Out of stock
Sikaflex NP 1 Special Bronze
Sikaflex NP 1 is a one-component moisture-curing polyurethane joint sealant. This Special Bronze 10 oz cartridge is for parapets and masonry joints. It holds plus or minus 35% movement and typically bonds without a primer on concrete and masonry. Immersion service uses Primer-173 or Sikaflex Primer-429, with documented wet-area performance on the sheet.
Key Features
- One-component moisture-curing polyurethane
- Special Bronze 10 oz cartridge
- Plus or minus 35% movement (ASTM C719)
- Parapets and masonry joints
- Primer-173 or Sikaflex Primer-429 for immersion
- Documented wet-area performance
Applications
- Parapets and masonry joints
- Clay and concrete roof-tile substrates
- Interior and exterior joints above and below grade
- Immersed joints after a 21-day cure
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | Sikaflex NP 1 |
| Unit | 10 oz cartridge |
| Color | Special Bronze |
| Movement | +/- 35% (ASTM C719) |
| Immersion primer | Primer-173 or Primer-429 |
| C920 use | Use I (immersion) |
| Non-sag grade | Grade NS |
| Shelf life | 15 months (cartridge) |
Product documents: Sikaflex NP 1 Product Data Sheet (PDF)
Frequently Asked Questions
What size is Sikaflex NP 1 Special Bronze?
The cartridge is 10 oz.
What parapet work uses Sikaflex NP 1 Special Bronze?
Parapets and masonry joints, including clay and concrete roof-tile substrates. Interior or exterior, above or below grade.
What immersion primer does Sikaflex NP 1 Special Bronze need?
Primer-173 or Sikaflex Primer-429. Immersion service still waits 21 days at 70 F and 50% RH.
What wet-area performance does Sikaflex NP 1 Special Bronze document?
Documented performance in wet areas. It is suitable for water immersion when the primer and 21-day cure are followed.
What Use I class does Sikaflex NP 1 Special Bronze have?
ASTM C920 Use I covers immersion, along with Use NT, M, A, T, and O. Type S, Grade NS, Class 35.
What non-sag grade does Sikaflex NP 1 Special Bronze have?
Grade NS. No sag in vertical displacement at 120 F (ASTM C639).
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