General Product Information

Sikaflex 11FC is a 1 part polyurethane, moisture curing, elastic multipurpose adhesive
It is suitable for indoor and outdoor usage
Sikaflex 11FC is available in 300ml cartridges and 600ml sausages
Sikaflex 11FC is impact and vibration absorbing
The shelf life of Sikaflex 11FC is 10 months (unopened and undamaged)
Once open the sausage can be stored in a refrigerator for a limited time

   Substrate Preparation

• Surfaces should be sound and LEVEL and provide adequate strength to support the intended use of the application
• All substrates (Kwela products and surface) must be clean, dust free and dry
• All coatings must be completely removed and the substrate must be sound
• Dense powder floated surfaces are to be scabbled or acid etched to open up the surface and allow for adhesion
• Go to for more detailed information regarding substrate and screeds

  Application & Installation

 Once substrate is sound apply the Sikaflex 11FC with a 4mm notched trowel and once bedded firmly, a 2mm layer of adhesive (optimal strength) is attained
A putty knife can be used to spread the adhesive 3mm thick and again when bedded will give a 2mm spread
Place the Kwela product in place and apply pressure using masking tape
Keep in position for 24 hours
There must be expansion joint of 5mm between pieces and DO NOT butt joint
Sikaflex 11FC must be used as the joint sealant (see instructions for joint sealing)
Incorrectly positioned products can be removed and repositioned in the first few minutes after installation
Once installed and cleaned with Easy Clean, seal with Deep Seal
You can use Deep Seal (5m² per can) on smaller areas as the contents are the same as for the Invisible Seal (15m² per litre)
 Applicator and then re-applied every 2-3 years



Sikaflex 11FC will set after 24 -48 hours (temperature sensitive)
 Sikaflex 11FC full cure is after 28 days


  • Care must be taken not to damage, scratch, stain or mark the Kwela Products, as full curing occurs after 14 days
  • Care must be taken to clean Kwela products as soon as possible with Turpentine. DO NOT USE ACETONE
  • Clean products with Easy Clean and rinse with clean water.
  • Apply 2 coats Deep Seal as per Instructions.
  • Sikaflex 11FC will set after 24-48 hours (temperature sensitive)
  • Sikaflex 11FC full cure is after 28 days


If in any doubt on how to install, do not install the product
Contact your stockist for assistance
Once the products are installed no refunds, credits or returns can be entertained

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