Sikaflex-11 FC+ 310ml | Multipurpose elastic adhesive and joint sealant
Product Category: Adhesive & Sealant
Brand: Sika
Model Code: Sikaflex®-11 FC+
Description
Sikaflex®-11 FC+ is a 1-component polyurethane elastic adhesive and joint sealant, designed for bonding and sealing most construction materials. Suitable for both interior and exterior applications.
Applications
As Adhesive
Concrete
Masonry
Stone (cast / reconstituted)
Ceramic
Wood
Metal
Glass
As Sealant
Vertical joints
Horizontal joints
General construction joints
Key Features
Movement capability: ±35%
Strong adhesion without primer (in many cases)
Excellent mechanical strength
Good weather resistance
Low VOC emission
Dual function: adhesive + sealant
Standards & Certifications
EN 15651-1 (Facade joints)
EN 15651-4 (Pedestrian walkways)
ASTM C920 Class 35
LEED v4 compliant (low emissions)
EC1PLUS (very low VOC)
French VOC Class A+
Product Information
Type: Polyurethane adhesive sealant
Technology: Sika i-Cure®
Packaging:
300 ml cartridge (12/box)
600 ml foil pack (20/box)
Colour: Various (depends on local supply)
Shelf Life: 15 months
Storage: +5°C to +25°C
Density: ~1.35 kg/L
Technical Data
Mechanical Properties
Shore A Hardness: ~37
Tensile Strength: ~1.5 N/mm²
Tensile Modulus: ~0.60 N/mm²
Elastic Recovery: ~80%
Tear Resistance: ~8.0 N/mm
Elongation at Break: ~700%
Movement & Temperature
Movement Capability: ±35%
Service Temperature: -40°C to +80°C
Joint Design
Joint width: 10 mm – 35 mm
Width : Depth ratio = 2 : 1 (facade joints)
Typical Joint Size
Joint Distance
Width
Depth
2 m
10 mm
10 mm
4 m
15 mm
10 mm
6 m
20 mm
10 mm
8 m
30 mm
15 mm
10 m
35 mm
17 mm
Consumption Guide
Sealing (300 ml cartridge)
Width
Depth
Length
10 mm
10 mm
3.0 m
15 mm
12 mm
1.6 m
20 mm
17 mm
0.9 m
25 mm
20 mm
0.6 m
30 mm
25 mm
0.4 m
Bonding Yield
~100 spots (30 mm diameter, 4 mm thick)
~15 m bead (5 mm nozzle)
Application Conditions
Air Temperature: +5°C to +40°C
Substrate Temperature: +5°C to +40°C
Must be ≥3°C above dew point
Performance
Curing Rate: ~3.5 mm / 24 hrs
Skin Time: ~70 minutes
Substrate Preparation
Surface must be:
Clean
Dry
Strong
Free from oil, grease, dust
Primer / Treatment
Non-porous substrates:
Aluminium, steel, tiles → Aktivator-205
Copper / brass → Aktivator-205 + Primer-3 N
PVC → Primer-215
Porous substrates:
Concrete, mortar → Primer-3 N
Application Method
Bonding
Apply in beads / spots
Press components into position
Adjust within first minutes
Use temporary support if needed
Full curing: 24–48 hours
Sealing
Insert backing rod
Apply sealant evenly
Ensure full contact with joint sides
Tool immediately
Use Sika Tooling Agent N
Important Notes
Can be overpainted (test compatibility first)
Best results after full curing
Non-flexible paint may crack
Colour change possible (aesthetic only)
Limitations
Do NOT use:
On bitumen, rubber, EPDM
On PE, PP, PTFE plastics
For structural bonding
For underwater / immersion
In swimming pools
For glass sealing (UV exposure)
For trafficked floor joints
With alcohol during curing
Performance Advantages
Strong bonding + sealing in one product
High elasticity and durability
Suitable for heavy-duty construction use
Wide material compatibility
Excellent long-term performance
Safety & Handling
Follow SDS guidelines
Use PPE
Store in sealed packaging
Additional Notes
Lab-tested values
Site conditions may vary results
Local regulations may differ
Summary
Sikaflex®-11 FC+ is a premium multi-purpose adhesive and sealant, combining high strength, ±35% flexibility, and excellent durability, making it ideal for construction bonding and joint sealing in demanding environments.