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Shield Technologiess Bio-Ex is designed to eliminate organic and microbiological growth contaminants from porous hard ground surfaces. This includes natural stone, cement, tarmac, brick, terracotta and more. This high performing and renovating cleaner is available as a light gel which will clean and provide surface protection from moss, lichen and algae.


  • Suitable for multiple uses on a variety of ground surfaces
  • Ready to use
  • High performing
  • Long-term protection
  • Does not contain solvents
  • No acid or caustic soda
  • Provides protection from Moss, Lichen and Algae

Available in 5 Litres

A bespoke lye treatment.

Designer pre-treatment before oiling. Wooden floors treated with lye absorb oils particularly well. With coloured oils especially effective colour tones can be achieved.

Available in 5 Litres.


  • Provides protection for both internal and external surfaces
  • Suitable for all types of wood
  • Protection against all weather conditions, soiling or stains
  • Significantly reduces absorption of humidity
  • Protection against decay and UV degradation
  • Improved clean appearance of wood in the long term
  • Does not impact the surfaces finish, texture or aesthetics, appearance is natural
  • Invisible colour
  • Solvent free
  • Ready mixed and easy to apply
  • Almost odourless