Filon Products Trademark Filon UK Manufactures GRP Rooflights, Roofing, Cladding - Filon UK


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Site updated 6th November 2008



Filon Citadel - Non Corrosive Roofing Logo

  Roofing for Chemical and Hostile Environments

Filon Citadel - Roofing for Chemical and Harsh Conditions

Filon Citadel is an exceptional profiled opaque GRP sheet designed to withstanding demands of extreme environments in locations exposed to severe chemical conditions of processing and chemical plants and buildings in marine localities. Its superior GRP qualities successfully combat conditions in which other roofing and cladding materials would quickly corrode.

Filon Citadel can be tailored to withstand extreme conditions that prevail either externally or internally of a building.

When used for opaque roofing the sheets incorporate an additional woven glass reinforcement during manufacture. This strengthening meets the stringent demands of the Health and Safety Executive Drop Test, which requires the panel to withstand a 45kg bag dropped from a height of 1.2m without breaking.

Under rigorous testing Filon Citadel's impressive qualities are resistant to the following chemical elements :

Filon Citadel - Roofing for Coastal and Harsh Environments

Suitability or Affect

Element Type
Alkali - 10% Sodium Hydroxide
Alcohol - Methanol
Alcohol - 10% Phenol
Chlorinated Solvent - Methylene Chloride
Chlorine Wet or Dry
Hydrocarbons - Benzene
Salts - 10% Sodium Carbonate
Salts - Saturated Sodium Carbonate
Solvents - Acetone
Solvents - Water
Strong Acids - 50% Sulphuric Acid
Weak Acids - 10% Citric Acid

Standard GRP
Unsuitable
Negligible
Unsuitable
Unsuitable
Limited Exposure
Unsuitable
Limited Exposure
Negligible
Unsuitable
Negligible
Unsuitable
Negligible

Filon Citadel
Negligible
Negligible
Unsuitable
Limited Exposure
Negligible
Negligible
Negligible
Negligible
Limited Exposure
Negligible
Negligible
Negligible


Filon Citadel is manufactured in natural translucent, tinted or opaque colours, with matching GRP ridge units and flashings if required. Most common industrial profiles are produced in weights 1.83kg/m2 to 3.66kg/m2, and any length up to 12m. Two fire resistant grades, Class 1 and Class 3 are available, conforming to BS476 Part 3 and Part 7.

If you wish to obtain more information about our Filon Citadel product you can view and print the Technical Datasheet in PDF format. To do this you will need Adobe Acrobat Reader running on your computer. Filon Citadel Datasheet (150Kb)

Contacts: Tel. 01543-687-300 Fax. 01543-687-303 © Filon Products Ltd.