Sika Sikaflex-11 FC+

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Two tubes of Sika Sikaflex adhesive on a blurred background with more adhesive bottles.

Multiple bottles of Sikaflex 11 FC+ sealant with application examples on a blue background

Sika Sikaflex-11 FC+

$6.89

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Sikaflex®-11 FC+

A 1-part multipurpose elastic adhesive and joint sealant with excellent application properties. Bonds and seals most construction material substrates without surface pre-treatment. Suitable for interior and exterior use with ±35% movement capability and very low VOC emissions.

Overview

Specifications

Property	Value
Type	1-component i-Cure® polyurethane adhesive-sealant
Density	~1.35 kg/L (ISO 1138-1)
Shore A Hardness	~37 (after 28 days, ISO 868)
Tensile Strength	~1.5 N/mm² (ISO 37)
Secant Tensile Modulus	~0.60 N/mm² at 100% elongation (ISO 8339)
Elastic Recovery	~80% (ISO 7389)
Tear Propagation Resistance	~8.0 N/mm (ISO 34)
Movement Capability	±35% (ASTM C719)
Service Temperature	−40°C min / +80°C max
Skinning Time	~70 minutes at +23°C / 50% R.H.
Curing Rate	~3.5 mm / 24 hours at +23°C / 50% R.H.
Sag Flow	~1 mm (20 mm profile, +23°C, ISO 7390)
Shelf Life	15 months from date of production
Storage	Dry, +5°C to +25°C, original sealed packaging

Usage

Bonding construction components: concrete, masonry, reconstituted/cast stone, ceramic, wood, metal, glass
Sealing vertical and horizontal joints
Interior and exterior applications

Advantages

Movement capability of ±35% (ASTM C719)
Bonds well to most substrates without surface pre-treatment
Good mechanical and weathering resistance
Very low emissions – GEV-Emicode EC1PLUS, LEED v4 compliant, Class A+ (French VOC regulation)
CE marked per EN 15651-1 and EN 15651-4
IBU Environmental Product Declaration (EPD) available

Packaging

300 ml cartridge (12 cartridges per box)
600 ml cylindrical foil pack (20 foil packs per box)

Colour

White
Grey

Product Details

Product Information

Property	Detail
Composition	i-Cure technology polyurethane (1-component)
Certifications	CE marking EN 15651-1 & EN 15651-4; ASTM C920-11 Class 35; ISEGA Certificate No. 43792 U 16
Shelf Life	15 months from date of production
Storage Conditions	Dry, +5°C to +25°C, original sealed packaging
Density	~1.35 kg/L (ISO 1138-1)

Technical Information – Joint Design

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

Technical Information – Yield (Sealing)

Joint Width (mm)	Joint Depth (mm)	Yield per 300ml Cartridge (m)	Yield per 600ml Foil Pack (m)
10	10	3.0	6.0
15	12	1.6	3.2
20	17	0.9	1.8
25	20	0.6	1.2
30	25	0.4	0.8

Application

Application Information

Parameter	Value
Ambient Temperature	+5°C min / +40°C max
Substrate Temperature	+5°C min / +40°C max (min. 3°C above dew point)
Skinning Time	~70 minutes at +23°C / 50% R.H.
Curing Rate	~3.5 mm / 24 hours at +23°C / 50% R.H.

Application Steps

Substrate Preparation: Surface must be sound, clean, dry, and free from dirt, oil, grease, cement laitance, old sealants, and poorly bonded coatings. Use wire brushing, grinding, or sanding to remove weak material. Remove all dust before application.
Priming – Non-Porous Substrates: Aluminium, anodised aluminium, stainless steel, PVC, galvanised steel, powder-coated metals, glazed tiles: lightly abrade, then apply Sika® Cleaner P or Sika® Aktivator-205 with a clean cloth. Wait >15 min (<6 hours) before bonding. Other metals (copper, brass, titanium-zinc): apply Sika® Cleaner P or Aktivator-205, wait >15 min, then prime with Sika® Primer-3 N. Wait >30 min (<8 hours). PVC: apply Sika® Primer-215, wait >15 min (<8 hours).
Priming – Porous Substrates: Concrete, aerated concrete, cement renders, bricks: prime with Sika® Primer-3 N by brush. Wait >30 min (<8 hours) before bonding/sealing.
Application: Insert backing rod if required. Cut nozzle to desired bead size. Apply sealant into joint ensuring full contact with adhesion area. Tool immediately for smooth finish. Use Sika® Tooling Agent N if required.
Cleaning: Clean tools immediately with Sika® Remover-208. For skin cleaning use Sika® Cleaning Wipes-100. Cured material can only be removed mechanically.