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Sika Sikaflex NP 1 White 10.1oz Cartridge
Sikaflex NP1 is a one-component, high-performance, non-priming, gun-grade, elastomeric polyurethane sealant. It requires no mixing and typically requires no priming to bond to many materials, including concrete and masonry.
- Weather resistant for long-lasting weather tight seals
- Joint movement capability ±35% provides excellent flexibility
- Compatible with non-rigid coatings and can be painted
$6.49
Availability: In stock ( 132 Available )
Orders over $300 Ship Free! SKU
20674
Sika Sikaflex NP 1 – High-Performance Polyurethane Sealant
Sikaflex NP 1 is a one-component, gun-grade polyurethane sealant designed for durable, long-lasting joint sealing in construction applications. This high-performance elastomeric sealant provides excellent flexibility, superior adhesion to most building materials, and outstanding weather resistance. Sikaflex NP 1 cures to a tough, rubber-like consistency, making it ideal for sealing expansion joints, window perimeters, aluminum curtain walls, precast units, and masonry applications. With ±35% joint movement capability and no need for priming in most cases, Sikaflex NP 1 simplifies installation while ensuring a strong, weatherproof seal.
Key Features:
- One-component polyurethane sealant – no mixing required
- Excellent adhesion to concrete, masonry, aluminum, wood, and natural stone
- ±35% movement capability for superior flexibility
- Weather-resistant and UV-stable for long-term durability
- Paintable with water-, oil-, and rubber-based paints
- Ideal for expansion joints, perimeter sealing, and façade applications
- Meets ASTM C920, TT-S-00230C, and other major performance standards
- Available in multiple colors to match various construction needs
Technical Specifications:
| Property | Value |
|---|---|
| Shelf Life | 12 months in original, unopened container |
| Storage Temperature | 40°F – 95°F (4°C – 35°C) |
| Shore A Hardness | 25 – 30 (ASTM C661) |
| Tensile Strength | 150 psi (ASTM D412) |
| Elongation at Break | 800% (ASTM D412) |
| Adhesion in Peel | 30 pli (ASTM C794) |
| Service Temperature | -40°F to 180°F (-40°C to 82°C) |
| Tack-Free Time | 3 to 6 hours |
| Full Cure Time | 7 days |
Frequently Asked Questions:
What surfaces can Sikaflex NP 1 adhere to?
Sikaflex NP 1 bonds well to concrete, masonry, aluminum, wood, stucco, and natural stone without primer.
Can Sikaflex NP 1 be used in submerged conditions?
Yes, it is suitable for water immersion when used with the appropriate primer.
Is Sikaflex NP 1 paintable?
Yes, it can be painted with most water-, oil-, and rubber-based paints after full cure.
How long does it take for Sikaflex NP 1 to fully cure?
It becomes tack-free in 3 to 6 hours and reaches full cure in 7 days.
For the latest technical specifications and application guidelines, visit Sika USA.
| Brand | Sika |
|---|---|
| Color | White |
| Size | 10oz |
| Manufacturer | Sika |
