Sikaflex®-11 FC+

Multipurpose elastic adhesive and joint sealant

Sikaflex®-11 FC+ is a 1-part, multipurpose elastic adhesive and joint sealant with very good application properties which bonds and seals most construction material substrates. Internal and external use.

  • Movement capability of ± 35 %
  • Bonds well to defined substrates without surface pre-treatment
  • Good mechanical and weathering resistance

Usage

An adhesive to bond construction components and materials such as:

  • Concrete
  • Masonry
  • Reconstituted or cast stone
  • Ceramic
  • Wood
  • Metal
  • Glass

A sealant to seal vertical and horizontal joints.

Advantages

  • Movement capability of ± 35 %
  • Bonds well to defined substrates without surface pre-treatment
  • Good mechanical and weathering resistance
  • Very low emissions
  • Adhesive-sealant with CE marking

Packaging

300 ml cartridge

12 cartridges per box

600 ml cylindrical foil pack

20 foil packs per box

Colour

concrete grey

Product Information

Chemical base

i-Cure technology polyurethane

Shelf life

15 months from the date of production

Storage conditions

The product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +25 °C. Always refer to packaging.

Density

~1.35 kg/L

(ISO 1138-1)

Product Information

Sag flow

~1 mm (20 mm profile, +23 °C)

(ISO 7390)

Ambient air temperature

+5 °C min. / +40 °C max.

Substrate temperature

+5 °C min. / +40 °C max. Minimum +3 °C above dew point temperature

Backing material

Use closed cell, polyethylene foam backing rod

Curing rate

~3.5 mm/24 hours (+23 °C / 50 % r.h.)

(CQP* 049-2)

*Sika Corporate Quality Procedure

Skin time

~70 min (+23 °C / 50 % r.h.)

 (CQP* 019-1)

*Sika Corporate Quality Procedure

Technical Information
 

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 (+23 °C)

 (ISO 8339)

Movement capability

± 35 %

(ASTM C719)

Elastic recovery

~80 %

(ISO 7389)

Tear propagation resistance

~8.0 N/mm

(ISO 34)

Service temperature

-40 °C min. / +80 °C max.

Chemical resistance

Resistant to many chemicals. Contact Sika® Technical Services for additional information.

Joint design

The joint dimensions must be designed to suit the movement capability of the sealant. The joint width must be ≥ 10 mm and ≤ 35 mm. A width to depth ratio of 2:1 for facade joints must be maintained (for exceptions, see table below).


Typical joint dimensions for joints between concrete elements:

Joint distance (m)

Minimum joint width (mm)

Minimum joint depth (mm)
2 10 10
4 15 10
6 20 10
8 30 15
10 35 17

Minimum joint width for perimeter joints around windows is 10 mm.

All joints must be correctly designed and dimensioned in accordance with the relevant standards and codes of practice before their construction. The basis for calculation of the necessary joint widths are the type of structure, dimensions, technical values of the adjacent building materials, joint sealing material and the specific exposure of the building and the joints.

Joints ≤ 10 mm in width are for crack control and therefore non-movement joints.

For larger joints contact Sika® Technical Services for additional information.

Sikaflex®-11 FC+

Technical Data Sheet (TDS)

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