Sikaflex®-11 FC
One part advanced polyurethane, elastomeric sealant/adhesive
Sikaflex®-11 FC is a one-component, gun-grade, adhesive and sealing compound of permanent elasticity. This dual-purpose material is based on a special moisture-cured polyurethane with an accelerated curing time that meets ASTM C920 Type S, Grade NS, Class 12.5, Use NT, I, M, A, O. and Federal Specification TT-S-00230C, Type II, Class B.
- Excellent adhesion on all cement-based materials, brick, ceramics, glass, metals, wood, epoxy, polyester and acrylic resin
- Fast cure rate
- Good weathering and water resistance
Usage
As an elastic adhesive for noncritical applications like:
- Cover plates, gaskets and coverings
- Acoustic ceiling tiles
- Floor moldings and door sills
- Light weight construction materials
- Wood or metal and door frames
- Roof tiles
As an elastic joint sealer for:
- Air ducts and high vacuum systems
- Containers, tanks, and silos
- Gaskets in openings in walls or floors for ducts, piling, etc.
- Reservoirs or water retaining structures
- Aluminum fabrication
- Bolted lap joints
Packaging
10.1 fl. oz. (300 ml) cartridge, 20 fl. oz. (600 ml) sausage, 4.5 gal (17 L) in a 5 gal pail
Advantages
- Excellent adhesion on all cement-based materials, brick, ceramics, glass, metals, wood, epoxy, polyester and acrylic resin
- Fast cure rate
- Good weathering and water resistance
- Good weathering and water resistance
- Non-corrosive
- Can be painted over with water, oil, and rubber-based paints. (Preliminary tests recommended).
- High durability
- Can be used in tamper resistant joints.
Colour
White, Aluminum Gray, Black
Product Details
APPROVALS / STANDARDS
- ASTM C920 Type S, Grade NS, Class 12.5, Use NT, I, M, A, O
- Federal Specification TTS-00230C, Type II, Class B
- Certified to NSF/ANSI/CAN 61 for potable water (meets applicable requirements of NSF/ANSI 600).
Shelf Life
12 months in unopened container.
Storage Conditions
Store at 40–95 °F (4–35 °C).
Condition material to 65–75 °F before using.
Volatile organic compound (VOC) content
25 g/L
Shore A Hardness
| 40–45 | (73 °F (23 °C) and 50 % R.H.) (ASTM D-2240) |
Tensile Strength
| 225 psi | (73 °F (23 °C) and 50 % R.H.) (ASTM D-412) |
Lap Shear Strength
| 165 psi | (73 °F (23 °C) and 50 % R.H.) (ASTM D-1002 modified, glass substrate) |
Elastic Recovery
| >90 % | (73 °F (23 °C) and 50 % R.H.) (ASTM C-719) |
Service Temperature
-40 °F to 170 °F
Chemical Resistance
Good resistance to water, weak acids, weak alkalis, sewerage, mineral oils, vegetable oils, fats, fuels. (Not resistant to organic solvents, paint thinner, strong acids, strong alkalis). Consult Technical Service for specific data.
Resistance to Weathering
Excellent
Application
Ambient Air Temperature
40 °F to 100 °F.
Sealant should be installed when joint is at mid-range of its anticipated movement.
Curing Rate
| Tack-free Time (TT-S-00230C) | 1 to 2 hours depending on climate |
| Final Cure | 3 to 5 days |
Coverage
| Width/Depth | 1/4” | 3/8” | 1/2” |
| 1/4” | 24.3 | ||
| 3/8” | 16.2 | 10.8 | |
| 1/2” | 12.1 | 8.1 | 6.1 |
| 3/4” | 8.1 | 5.4 | 4.0 |
| 1” | 3.0 | ||
| 1.25” | 2.4 | ||
| 1.5” | 2.0 |
SUBSTRATE PREPARATION
Clean all surfaces. Joint walls must be sound, clean, dry, frost-free, and free of oil and grease. Curing compound residues and any other foreign matter must be thoroughly removed. A roughened surface will also enhance bond. Bond breaker tape or backer rod must be
used at bottom or base of joint void to prevent three
sided adhesion.
Priming
Priming is not usually necessary for anodized aluminum, steel, non-absorbent materials such as glass, ceramics, stoneware and tiles. Most substrates only require priming if testing indicates a need or where sealant will be subjected to water immersion or chemical exposureafter cure. Consult Technical Service at 1-800-933-SIKA for additional information on priming.