Sikaflex NP1 Non-Sag Polyurethane 20oz Sausage Case of 20 (Formerly Masterseal NP1)
$247.20
- One-component formula requires no mixing, helping to reduce labor costs
- Joint movement capability ±35% provides excellent flexibility for keeping moving joints weathertight
- Easy to gun and tool, speeding up application and making neater joints
- No primer required for most construction materials lowering installation costs
- Weather resistant for long-lasting weather tight seals
- Compatible with non-rigid coatings and can be painted
- Superior holding power for long-lasting roof tile installation
- Application Temperature: 34F to 180F
Sikaflex NP1 is a high-performance, one-component, moisture-curing polyurethane sealant engineered for professional construction and industrial applications. Formulated to provide long-lasting flexibility, it is ideal for sealing dynamic joints subject to movement and environmental stress. Its outstanding elasticity — accommodating joint movement of ±35% — makes it particularly effective in applications where thermal expansion, structural shifting, or mechanical vibration is expected.
This non-sag, gun-grade sealant can be applied in vertical and overhead joints without slump or flow, simplifying installation and reducing waste. Unlike many other polyurethane sealants, Sikaflex NP 1 requires no mixing and bonds exceptionally well without a primer to most common construction materials, including concrete, masonry, stone, wood, aluminum, steel, and many plastics. This makes it highly versatile for a wide range of commercial, industrial, and residential sealing tasks.
Sikaflex NP1 is especially useful in sealing expansion and control joints, window and door perimeters, precast concrete panels, masonry facades, roofing transitions, and around penetrations or flashing terminations. Its durable formulation resists aging and hardening, even under prolonged exposure to UV rays, temperature extremes, rain, and snow. Once fully cured, the sealant is paintable and remains flexible, maintaining its adhesion and integrity over the long term.
Contractors and specifiers rely on Sikaflex NP1 for projects where low maintenance, reliability, and ease of application are critical. The sealant is available in multiple color options to match architectural finishes and enhance visual consistency. It also meets or exceeds many industry standards, including ASTM C920, Federal Specification TT-S-00230C Type II, and CAN/CGSB-19.13-M87.
Whether used in new construction or repair and retrofit work, Sikaflex NP1 delivers trusted performance for demanding sealing and weatherproofing applications — all in a convenient, ready-to-use package that streamlines fieldwork and minimizes delays.
To learn more about our Sikaflex NP1 Non-Sag Polyurethane 20 oz Sausage, contact us today!
Need a slope grade sealant?
| Weight | 2 lbs |
|---|---|
| Dimensions | 14 × 2 × 2 in |
| Color | ALUMINUM GRAY, BLACK, GRAY, HUNTER GREEN, OFF-WHITE, MEDIUM BRONZE, LIMESTONE, REDWOOD TAN, TAN, SPECIAL BRONZE, STONE, WHITE |
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