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Sika SikaHyflex 150LM Limestone 20oz Sausage 568888
SikaHyflex-150 LM is a one-component low-modulus hybrid sealant in a Limestone 20 oz sausage for window perimeters, expansion joints, and dissimilar substrates. It skins in under 60 minutes and stays tack-free in under 1 hour at 73 F for fast joint close-out.
- ASTM C-920 Class 50 with ±50% movement capability
- VOC under 12 g/L with strong UV and weather resistance
- Overpaints immediately after application on porous and non-porous work
$12.94
Availability:
Out of stock
SikaHyflex-150 LM
SikaHyflex-150 LM is a premium-grade, one-component, non-sag, low-modulus hybrid sealant that meets ASTM C-920 Type S, Grade NS, Class 50 for window perimeters, expansion joints, curtain walls, and joints between dissimilar substrates. This Limestone 20 oz sausage (part 568888) skins in under 60 minutes and is tack-free in under 1 hour at 73 F, with ±50% movement capability, Shore A 27, and VOC under 12 g/L. It overpaints immediately after application and applies from 40 to 100 F on porous and non-porous substrates.
Key Features
- One-component non-sag low-modulus hybrid sealant
- Meets ASTM C-920 Type S, Grade NS, Class 50, Use NT, M, A, G, O
- ±50% movement capability at 73 F
- Skin time under 60 minutes; tack-free under 1 hour at 73 F
- Shore A hardness 27 with VOC under 12 g/L
- Overpaints immediately after application
Applications
- Works on window perimeter joints
- Expansion joints and curtain wall construction
- Joins dissimilar substrates such as vinyl to concrete and aluminum to EIFS
- Jobs that need paintability with adhesion to non-porous substrates
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | SikaHyflex-150 LM |
| Part no. | 568888 |
| Color | Limestone |
| Unit | 20 oz (600 ml) sausage |
| Chemistry | One-component low-modulus hybrid |
| ASTM | C-920 Type S, Grade NS, Class 50 |
| Movement | ±50% |
| Shore A | 27 |
| Skin / tack-free | Under 60 min / under 1 h at 73 F |
| Apply temp | 40 to 100 F |
| VOC | Under 12 g/L |
Frequently Asked Questions
What movement capability does SikaHyflex-150 LM hold?
±50% under ASTM C-719 at 73 F and 50% R.H., matching ASTM C-920 Class 50.
What skin and tack-free times should crews plan for with SikaHyflex-150 LM?
Skin time is under 60 minutes. Tack-free time is under 1 hour at 73 F and 50% R.H. (ASTM C-679). Cooler, drier air extends both.
What substrates need a primer under SikaHyflex-150 LM?
It is designed for adhesion without primer on many surfaces. Porous substrates that need help use Sika Primer 429; non-porous primers follow Technical Services.
What paint window applies after tooling SikaHyflex-150 LM?
It overpaints immediately after the sealant is applied. Confirm coating compatibility on a test area.
What joint depth keeps SikaHyflex-150 LM in range?
Depth is half the joint width, with a minimum of 1/4 in and a maximum of 1/2 in. Use backer rod or bond-breaker tape to avoid three-sided adhesion.
What size is the SikaHyflex-150 LM sausage on this page?
The Limestone sausage is 20 oz (600 ml), part 568888. The PDS also covers 10.1 oz cartridges.
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