Sika Sikaflex NP 1 Off White 10oz Cartridge

Sikaflex NP 1 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: Out of stock

SKU

20669

Details

Sika Sikaflex NP 1 – Off-White – 10oz Cartridge

Sikaflex NP 1 is a one-component, elastomeric polyurethane sealant formulated for superior performance in construction and industrial applications. It provides durable, long-lasting seals and sound damping properties, making it suitable for sealing expansion joints, panel walls, precast units, window and door frames, and many other substrates. With excellent adhesion and flexibility, Sikaflex NP 1 withstands joint movement of ±35% and requires no mixing or priming for most applications.

Key Features:

One-component, moisture-curing polyurethane sealant
Joint movement capability of ±35%
Durable and weather-resistant for long-lasting performance
Easy to gun and tool, reducing labor costs
Suitable for indoor and outdoor applications
Excellent acoustic properties – reduces sound transmission
Can be painted and is compatible with non-rigid coatings
Meets ASTM C 920, TT-S-00230C, and other industry standards

Applications:

Sealing expansion joints in concrete and masonry
Perimeter sealing around windows and doors
Acoustic sealing for soundproofing applications
Sealing panel walls and precast concrete units
Roofing, fascia, and parapets
Storefront assemblies and vinyl siding

Technical Specifications:

Property	Value
Shore A Hardness	25 - 30
Elongation at Break	800%
Tensile Strength	6,780 psi
Tear Strength	50 pli
Service Temperature	-40°F to 180°F (-40°C to 82°C)
VOC Content	Low (meets VOC requirements)
Packaging	10 oz Cartridge
Shelf Life	1 year (unopened)

Frequently Asked Questions:

Can Sikaflex NP 1 be painted?
Yes, Sikaflex NP 1 can be painted with water-based, oil-based, and rubber-based paints after full cure.

What is the recommended joint width?
The ideal joint width is between 1/4 inch and 1 inch, depending on the application.

Is Sikaflex NP 1 suitable for submerged applications?
Yes, when properly primed with Sikaflex Primer-173, it is suitable for immersed applications.

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