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Fondosil 1903

Fondosil 1903

Water-dilutable, deeply-penetrating priming and thinning agent based on Sol silicate with organic stabilizers for interior and exterior use. For priming and stabilizing silicificating mineral substrates for subsequent silicate coating. Can be brush applied.

  • ELF = low-emission, solvent and plasticizer-free
  • For interior and exterior use
  • With Sol-Xtreme - sol-silicate bonding agent
  • Complies with the requirements of the Committee for the Health-related Evaluation of Building Products (AgBB)
  • Deeply penetrating
  • Stabilizing
  • For mineral substrates
  • With organic stabilizers


data sheets

Safety data sheets

Sustainability information


Approx. 100 ml/m² undiluted, approx. 200 ml/m² per layer (mix 1:1 with water)



Ordering Information

1903 / 5 l / PU 1
1903 / 10 l / PU 1