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Sika Sikaflex NP 1 Off White 10oz Cartridge
Sikaflex NP 1 Off White is a one-component polyurethane in a 10 oz cartridge. It seals roofing joints and fascia and typically bonds without a primer on concrete and masonry.
- Plus or minus 35% movement
- Skins overnight or within 24 hours at 75 F
- Interior and exterior joints above and below grade
$7.93
Availability:
Out of stock
Sikaflex NP 1 Off White
Sikaflex NP 1 is a one-component moisture-curing polyurethane joint sealant. This Off White 10 oz cartridge is for roofing joints, fascia, and moving perimeters. It holds plus or minus 35% movement and typically bonds without a primer on concrete and masonry. As an aromatic urethane it may yellow in UV, so HY 100, HY 150, or CR 195 is the pick where a true white has to hold.
Key Features
- One-component moisture-curing polyurethane
- Off White 10 oz cartridge
- Plus or minus 35% movement (ASTM C719)
- Typically bonds without a primer to concrete and masonry
- May yellow in UV as an aromatic urethane
- Tack-free time passes ASTM C679
Applications
- Roofing joints, fascia, and moving perimeters
- Interior and exterior joints above and below grade
- Panel walls and precast units
- Aluminum and wood window frames
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | Sikaflex NP 1 |
| Unit | 10 oz cartridge |
| Color | Off White |
| Movement | +/- 35% (ASTM C719) |
| Tack-free | Passes ASTM C679 |
| Full cure | Approximately 1 week at 75 F |
| Skin | Overnight or within 24 hours |
| Shelf life | 15 months (cartridge) |
Product documents: Sikaflex NP 1 Product Data Sheet (PDF)
Frequently Asked Questions
What size is Sikaflex NP 1 Off White?
The cartridge is 10 oz. Cartons are 30 cartridges or 12 cartridges.
What true-white appearance does Sikaflex NP 1 Off White hold?
It is an aromatic urethane and may discolor in UV. Where a true white has to hold, HY 100, HY 150, or CR 195 is the color-stable pick.
What tack-free result does Sikaflex NP 1 Off White pass?
Tack-free time passes ASTM C679. Skin is overnight or within 24 hours at 75 F and 50% RH in a 1/2 inch by 1/4 inch joint.
What full-cure wait does Sikaflex NP 1 Off White need?
Approximately 1 week at 75 F and 50% RH. Lower temperature and humidity extend that cure.
What roofing work uses Sikaflex NP 1 Off White?
Roofing joints, fascia, and moving perimeters. Interior or exterior, above or below grade.
What carton count does Sikaflex NP 1 Off White ship?
30 cartridges per carton, or 12 cartridges per carton.
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