Sikaflex®-11 FC+
Sikaflex®-11 FC+ is a 1-component, solvent-free joint sealant and multipurpose adhesive with high non-sag consistency.
- Silicone-free
- Very good adhesion to most construction materials
- No need to grout the bonded areas
- Good mechanical resistance
- Good resistance to weathering
- Impact and vibration absorbing
- Very low emissions
Usage
Sikaflex®-11 FC+ is designed as a joint sealant for vertical and horizontal joints, soundproofing of pipes between concrete and sheathing, caulking between partitions, seam sealing, sealing in metal and wood construction and for ventilation construction.Sikaflex®-11 FC+ is designed as a multipurpose adhesive for indoor and outdoor bonding of window sills, thresholds, stair steps, skirting boards, base boards, crash protection boards, covering boards and prefabricated elements.
Advantages
- Silicone-free
- Very good adhesion to most construction materials
- No need to grout the bonded areas
- Good mechanical resistance
- Good resistance to weathering
- Impact and vibration absorbing
- Very low emissions
Packaging
300 ml cartridge
Colour
Colour range to be defined by local sales organization.
Product Details
SUSTAINABILITY
- EMICODE EC1PLUS R
- LEED® EQc 4.1
- SCAQMD, Rule 1168
- BAAQMD, Reg. 8, Rule 51
APPROVALS / CERTIFICATES
- ISEGA certificate for foodstuff area usage
Composition
i-Cure Technology polyurethane
Shelf life
Sikaflex®-11 FC+ has a shelf life of 15 months from the date of production, if it is stored properly in undamaged, original, sealed packaging, and if the storage conditions are met.
Storage conditions
Sikaflex®-11 FC+ shall be stored in dry conditions, protected from direct sunlight and at temperatures between +5 °C and +25 °C.
Density
1.30 kg/l approx. | (ISO 1138-1) |
Shore A Hardness
37 approx. (after 28 days) | (ISO 868) |
Tensile Strength
1.5 N/mm2 approx. | (ISO 37) |
Secant Tensile Modulus
0.60 N/mm2 approx. (after 28 days) (23 °C) | (ISO 8339) |
Elastic Recovery
75% approx. (after 28 days) | (ISO 7389) |
Tear Propagation Resistance
8.0 N/mm approx. | (ISO 34) |
Chemical Resistance
Sikaflex®-11 FC+ is resistant to water, seawater, diluted alkalis, cement grout and water dispersed detergent.
Sikaflex®-11 FC+ is not resistant to alcohols, organic acids, concentrated alkalis and concentrated acids, chlorinated (hydro-carbons) fuel.
For detailed information please contact our Technical Service Department.
Service Temperature
−40 °C to +80 °C
Joint Design
The joint width must be designed to suit the joint movement required and the movement capability of the sealant. The joint width shall be ≥ 10 mm and ≤ 35 mm. A width to depth ratio of 1:0.8 for floor joints and 2:1 for facade joints must be maintained.
Standard joint widths for joints between concrete elements:
| Joint distance [m] | Min. joint width [mm] | Min. joint depth [mm] |
| 2 | 10 | 10 |
| 4 | 15 | 10 |
| 6 | 20 | 10 |
| 8 | 30 | 15 |
| 10 | 35 | 17 |
All joints must be correctly designed and dimensioned in accordance with the relevant standards, before their construction. The basis for calculation of the necessary joint widths are the type of structure and its dimensions, the technical values of the adjacent building materials and the joint sealing material, as well as the specific exposure of the building and the joints.
Joints ≤ 10 mm in width are for crack control and therefore non-movement joints. What is relevant is the joint width at the time of application of the sealant (guide value of +10 °C).
For larger joints please contact our Technical Service Department.
Application
Backing Material
Use closed cell, polyethylene foam backing rods.
Sag Flow
6 mm (20 mm profile, 23 °C) | (ISO 7390) |
Ambient Air Temperature
+5 °C to +40 °C, min. 3 °C above dew point temperature
Relative Air Humidity
30% to 90%
Substrate Temperature
+5 °C to +40 °C
Curing Rate
3.5 mm/24 hours approx. (23 °C / 50% r.h.) | (CQP 049-2) |
Skinning time
70 minutes approx. (23 °C / 50% r.h.) | (CQP 019-1) |
Consumption
Approximate consumption for floor joints
Joint length [m] per 600 ml | Joint length [m] per 300 ml | Joint width [mm] | Joint depth [mm] |
6 | 3 | 10 | 10 |
| 2.5−3 | 1.5 | 15 | 12−15 |
| 1.8 | 0.9 | 20 | 17 |
1.2 | 0.6 | 25 | 20 |
0.8 | 0.4 | 30 | 25 |
Minimum joint width for perimeter joints around windows is 10 mm.
SUBSTRATE PREPARATION
The substrate must be clean, dry, sound and homogeneous, free from oils, grease, dust and loose or friable particles. Paint, cement laitance and other poorly adhering contaminants must be removed. Sikaflex®-11 FC+ adheres without primers and/or activators.
However, for optimum adhesion and critical, high performance applications, such as on multi-story buildings, highly stressed joints, extreme weather exposure or water immersion, the following priming and/or pre-treatment procedures shall be followed:
Non- porous substrates
Glazed tiles, powder coated metals, aluminium, anodised aluminium, stainless steel and galvanised steel have to be treated with a very fine abrasive pad and Sika® Aktivator-205 shall be applied using a clean towel. Before sealing allow a flash-off time of > 15 minutes.
All metal surfaces that are not mentioned above have to be treated with a very fine abrasive pad and Sika® Primer-3 N shall be applied using a clean brush or roller. Before sealing allow a flash-off time of > 30 minutes (< 8 hours).
PVC has to be pre-treated with Sika® Primer-215 applied with a clean brush. Before sealing allow a flash-off time of > 30 minutes (< 8 hours).
Porous substrates
Concrete, aerated concrete and cement-based renders, mortars, brick, and natural stone have to be primed with Sika® Primer-3 N applied with a clean brush. Before sealing allow a flash-off time of > 30 minutes (< 8 hours).
For detailed advice, please contact our Technical Service Department.
Note: Primers are adhesion promoters. They are neither a substitute for the correct cleaning of a surface, nor do they improve the strength of the surface significantly.
CLEANING OF EQUIPMENT
Clean all tools and application equipment immediately after use with Sika® Remover-208 and/or Sika® TopClean T. Once cured, residual material can only be removed mechanically.