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Flow-resistant thickening additive, used to thicken IKO Polimar FCS resin based products. Requires mixing with IKO Polimar FCS Levelling Mortar Resin or IKO Polimar FCS Wear Course Resin before use - consult manufacturer for details. Ensures use of the FCS products on upstands as it helps to prevent run-off.

Features and benefits (FCS System):

  • Each layer will cure in approximately 20 minutes for an easy, quick application.
  • Provides seamless waterproofing of all areas, including complex upstands.
  • Highly flexible and crack-bridging, even in extreme cold temperatures.
  • Permanently weather-resistant (high and low temperatures, UV rays, hydrolysis).
  • Rot and root resistant (FLL tested and approved).
  • Used as part of one of the IKO Polimar FCS systems: IKO Polimar FCS Car Park System, or IKO Polimar FCS Roofing.
  • Up to 20-year materials guarantee.


Designed for use on balcony, roofing, car parks and flooring applications within small, medium and large commercial projects.

Specification data
Product Reference

IKO Polimar FCS Flow Resistant Additive

Accessories/ Other requirements

Not required

IKO Polimar FCS Cleaning Bucket

IKO Polimar FCS Mixing Bucket

Standard product features


Cold, liquid applied.



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