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Sika Sikaflex NP 1 Limestone ProPak 20oz Sausage 805571
Sikaflex NP 1 Limestone ProPak is a one-component polyurethane in a 20 oz sausage. It seals moving joints through wet service and holds -40 F to 180 F.
- Limestone 20 oz ProPak, part 805571
- Passes 10 weeks of water contact with movement cycling
- Service temperature -40 F to 180 F
$12.13
Availability:
In stock
( 1880 Available )
Sikaflex NP 1 Limestone ProPak
Sikaflex NP 1 is a one-component moisture-curing polyurethane joint sealant. This Limestone 20 oz ProPak (part 805571) is for moving joints that see water, including immersed service after a full cure. Service temperature is -40 F to 180 F. It typically bonds without a primer on concrete and masonry, and dry tooling sets the bead shape for adhesion.
Key Features
- One-component moisture-curing polyurethane
- Limestone 20 oz ProPak, part 805571
- Water contact 10 weeks with movement cycling (ASTM C1247)
- Service temperature -40 F to 180 F
- Dry tooling for bead shape and adhesion
- 3% weight loss after heat aging (ASTM C792)
Applications
- Moving joints that stay wet after a full cure
- Masonry, stucco, and natural stone
- Interior and exterior joints in all climates
- Long joint runs where a ProPak beats a cartridge
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | Sikaflex NP 1 |
| Part no. | 805571 |
| Unit | 20 oz ProPak |
| Color | Limestone |
| Movement | +/- 35% (ASTM C719) |
| Water cycling | 10 weeks (ASTM C1247) |
| Service temperature | -40 F to 180 F |
| Heat aging | 3% weight loss (ASTM C792) |
| Shelf life | 18 months (sausage) |
Product documents: Sikaflex NP 1 Product Data Sheet (PDF)
Frequently Asked Questions
What size is Sikaflex NP 1 Limestone ProPak?
The ProPak is 20 oz (590 ml), part 805571.
What water-cycling result does Sikaflex NP 1 Limestone ProPak pass?
10 weeks of water contact with movement cycling (ASTM C1247). Immersion service still waits 21 days at 70 F and 50% RH.
What service temperature does Sikaflex NP 1 Limestone ProPak hold?
-40 F to 180 F. Wide application range covers all climates.
What alcohol limit does Sikaflex NP 1 Limestone ProPak have?
Uncured material cannot contact alcohol-based materials or solvents, uncured silicone or hybrid sealants, oil-based caulk, polysulfides, or oil-, asphalt-, or tar-filled fillers.
What tooling does Sikaflex NP 1 Limestone ProPak use?
Dry tooling. Proper tooling sets the correct bead shape, a neat joint, and optimal adhesion.
What heat-aging loss does Sikaflex NP 1 Limestone ProPak show?
3% weight loss after heat aging (ASTM C792), with no cracking or chalking.
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