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Sika Sikaflex NP 1 Limestone 10.1oz Cartridge 805589
Sikaflex NP 1 Limestone is a one-component polyurethane in a 10.1 oz cartridge. It seals expansion joints in masonry, stucco, and natural stone and typically bonds without a primer.
- Limestone 10.1 oz cartridge for masonry, stucco, and stone
- 50 pli tear strength with no shrinkage
- Passes stain and color-change testing (ASTM C510)
$7.93
Availability:
In stock
( 115 Available )
Sikaflex NP 1 Limestone
Sikaflex NP 1 is a one-component moisture-curing polyurethane joint sealant. This Limestone 10.1 oz cartridge (part 805589) is for expansion joints in masonry, stucco, and natural stone. It holds plus or minus 35% movement and typically bonds without a primer. Tear strength is 50 pli with no shrinkage, so the bead stays in the joint through seasonal movement.
Key Features
- One-component moisture-curing polyurethane
- Limestone 10.1 oz cartridge, part 805589
- Tear strength 50 pli (ASTM D1004)
- No shrinkage
- Passes stain and color change (ASTM C510)
- Copper, stainless, Kynar, and galvanized typically need primer
Applications
- Masonry, stucco, and natural stone joints
- Expansion joints in panel walls and precast
- Interior and exterior joints in all climates
- Above-grade and below-grade moving joints
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | Sikaflex NP 1 |
| Part no. | 805589 |
| Unit | 10.1 oz cartridge |
| Color | Limestone |
| Movement | +/- 35% (ASTM C719) |
| Tear strength | 50 pli (ASTM D1004) |
| Shrinkage | None |
| Stain / color | Passes ASTM C510 |
| Shelf life | 15 months (cartridge) |
Product documents: Sikaflex NP 1 Product Data Sheet (PDF)
Frequently Asked Questions
What size is Sikaflex NP 1 Limestone?
The cartridge is 10.1 oz (300 ml), part 805589.
What stain result does Sikaflex NP 1 Limestone pass?
Stain and color change pass ASTM C510. It is an aromatic urethane, so a mock-up is still wise where the limestone color has to hold in UV.
What green-concrete mock-up does Sikaflex NP 1 Limestone need?
A mock-up is always recommended. Primer-173 is required, and sealing sooner than 72 hours after the pour hurts adhesion.
What metals need primer with Sikaflex NP 1 Limestone?
Copper, stainless, Kynar, and galvanized typically need the matching Sika or Sikaflex primer. An adhesion test is recommended on any other questionable substrate.
What tear strength does Sikaflex NP 1 Limestone have?
50 pli (ASTM D1004). Shrinkage is none.
What shrinkage does Sikaflex NP 1 Limestone show?
None. The cured bead stays in the joint through seasonal movement.
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