Sikaflex®-2c SL
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Sikaflex®-2c SL
TWO-COMPONENT, SELF-LEVELING, POLYURETHANE ELASTOMERIC SEALANT
Sikaflex®-2c SL is a 2-component, premium-grade, polyurethane-based, elastomeric sealant. It is principally a chemical cure in a self-leveling consistency. ASTM C-920, Type M, Grade P, Class 25, use T, NT, M, G, A, O, I. Federal Specification TT-S-00227E, Type 1, Class A.
- True self-leveling properties.
- Capable of ±50% joint movement.
- Chemical cure allows the sealant to be placed in non-moving joints exceeding 1/2 in. in depth.
Usage
- Intended for use in all properly designed working joints with a minimum depth of 1/4 inch.
- Ideal for horizontal applications.
- Placeable at temperatures as low as 40 °F.
- Adheres to most substrates commonly found in construction.
- Submerged conditions, such as canal and reservoir joints.
Advantages
- True self-leveling properties.
- Capable of ±50% joint movement.
- Chemical cure allows the sealant to be placed in non-moving joints exceeding 1/2 in. in depth.
- High elasticity with a tough, durable, flexible consistency.
- Exceptional cut and tear resistance.
- Exceptional adhesion to most substrates without priming.
- Available in 35 architectural colors.
- Color uniformity assured via Color-pak system.
- Available in pre-pigmented Limestone (no Color-pak needed).
- Self-leveling consistency, easy to apply in horizontal joints.
- Easy to mix.
- Paintable with water-, oil-, and rubber-base paints.
- Jet fuel resistant.
Packaging
1.5 gal. unit. 3 gal. units. Color-pak is purchased separately. Limestone Gray color available pre-pigmented.
Color
A wide range of architectural colors are available.
Special colors available on request.
Shelf Life
One year in original, unopened containers.
Storage Conditions
Store dry at 40–95 °F (4–35 °C). Condition material to 65–75 °F before using.
Shore A Hardness
|
40 ± 5 |
(21 days at 73 °F (23 °C) and 50 % R.H.) (ASTM D-2240) |
Tensile Strength
|
175 psi |
(21 days at 73 °F (23 °C) and 50 % R.H.) (ASTM D 412) |
Tensile stress at specified elongation
|
100 psi (at 100 %) |
(21 days at 73 °F (23 °C) and 50 % R.H.) (ASTM D 412) |
Adhesion in peel
|
Peel Strength (concrete) |
Adhesion loss |
|
30 lbs. |
0 % |
Tear Strength
|
100 lbs./in. |
(73 °F (23 °C) and 50 % R.H.) (ASTM D-624) |
Chemical Resistance
Good resistance to water, diluted acids, diluted alkalines, and residential sewage. Consult Technical Service for specific data.
Resistance to Weathering
| Excellent |
Service Temperature
−40 °F to +170 °F (−40 °C to 77 °C)
Ambient Air Temperature
40 °F (4 °C) to 100 °F (38 °C). Sealant should be installed when joint is at mid-range of its anticipated movement.
Substrate Temperature
40 °F (4 °C) to 100 °F (38 °C). Sealant should be installed when joint is at mid-range of its anticipated movement.
Cure Time
|
Tack-free Time |
6-8 hours |
|
Final Cure |
3 days |
Application Time
|
4h |
(73 °F (23 °C) and 50 % R.H.) (TT-S-00227E) |
Coverage
1 gallon: Yield in Linear feet
| Width/Depth | 1/4'' | 3/8'' | 1/2'' |
| 1/4'' | 307.9 | ||
| 3/8'' | 205.3 | 136.8 | |
| 1/2'' | 153.9 | 102.6 | 77.0 |
| 3/4'' | 102.6 | 68.4 | 51.3 |
| 1'' | 38.5 | ||
| 1.25'' | 30.8 | ||
| 1.5'' | 25.7 |
