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Sika Sikadur 51 NS 3 Gallon Unit
Sikadur-51 NS is a two-component non-sag flexible epoxy control-joint sealer in a 3 gallon unit for vertical and overhead joints. It mixes 2:1 and holds a pot life of approximately 1 to 1.5 hours.
- Non-sag flexible epoxy for vertical and overhead control joints
- Mix ratio 2:1 by volume; pot life approximately 1 to 1.5 hours
- Shore A hardness approximately 75 to 80 at 28 days
$510.26
Sikadur-51 NS
Sikadur-51 NS is a two-component non-sag, solvent-free, moisture-tolerant flexible epoxy control-joint sealer and adhesive for vertical and overhead non-moving joints. This 3 gallon unit (part 107678) mixes 2:1 by volume, holds a pot life of approximately 1 to 1.5 hours, and cures to Shore A approximately 75 to 80 with approximately 80% elongation at 14 days. Conforms to ACI 302.1R joint-material guidance for control joints.
Key Features
- Two-component non-sag solvent-free moisture-tolerant flexible epoxy
- Mix ratio A:B = 2:1 by volume
- Pot life approximately 1 to 1.5 hours
- Shore A hardness approximately 75 to 80 at 28 days
- Elongation approximately 80% at 14 days; tensile approximately 650 psi
- Conforms to ACI 302.1R (4.10 Joint Materials)
Applications
- Vertical and overhead non-moving saw-cut control joints and cracks
- Flexible adhesive work where a non-sag paste is needed
- Security sealant applications in non-moving joints
- Protects control-joint edges from deterioration
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | Sikadur-51 NS |
| Part no. | 107678 |
| Unit | 3 gallon unit |
| Color | Concrete gray |
| Chemistry | Two-component flexible epoxy |
| Mix ratio | 2:1 by volume |
| Pot life | Approximately 1 to 1.5 hours |
| Shore A 28 day | Approximately 75 to 80 |
| Elongation 14 day | Approximately 80% |
Product documents: Sikadur-51 NS Product Data Sheet (PDF)
Frequently Asked Questions
What joint jobs suit Sikadur-51 NS?
Vertical and overhead non-moving saw-cut construction control joints and cracks, plus flexible adhesive work needing a non-sag paste.
What mix ratio and pot life apply for Sikadur-51 NS?
Mix A:B = 2:1 by volume. Pot life is approximately 1 to 1.5 hours.
What hardness does cured Sikadur-51 NS reach?
Shore A approximately 75 to 80 and Shore D approximately 30 to 40 at 28 days.
What elongation does Sikadur-51 NS hold at 14 days?
Approximately 80% elongation with approximately 650 psi tensile strength.
What ACI guidance does Sikadur-51 NS follow?
It conforms to ACI 302.1R (4.10 Joint Materials) for control-joint sealers.
What size is Sikadur-51 NS?
The unit is 3 gallons, part 107678.
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