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Advantage: Chemical resistance


The surface of the VENTAFLEX air ducts are very resistant against environmental influences

GRP is resistant against solvents, plasticisers, fuel, mineral oil, diluted acids and alkalis: moreover against the influence of exhaust gases or aggressive industrial atmoshere.
The resistance against chemicals is especially beneficial with regard to hygiene and cleaning of the air ducts: the surfaces are not affected by common industrial cleaners.


Impact of different chemicals on GRP-surface

The impact of different chemicals on the surface of the VENTAFLEX air ducts was tested in extensive tests. This is only an extract of the substance tabel – you can get information on further resistances upon request.


SubstanceConcentrationResistance at 20-30°C
Acetone • •
Ammoniak • • •
Petrol • • •
Grease • • •
Formaldehyde • • 
Ocean water • • •
Lactic acid • •
Mineral oil • • •
Sodium Chloridesaturated• • •
Phosphoric acid10% aqueous diluted • • •
Turpentine • •
Citric acid • • •

• • • resistant

• •   conditionally resistant


Electrical conductivity10 e- 12 s/m
Microbial inertnesscertified according to standards VDI 6022
Erosion and emission of particles

certified according to EN 13401


Download information about resistancies



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VENTAFLEX Calalog 2023

All air duct products, technical details, supplies and installation instructions can be found in our general catalog.

• Installation of VENTAFLEX air ducts with VENTASNAP and VENTAFIX
• Glueing of VENTAFLEX air ducts
• Installation of a compensator for the expansion compensation

• Laying the air ducts
• Length adjustment of air ducts
• Installation LAVANTUS ring seal
• Installation LavantusGrip