For total sealing reliability, inventory consolidation and strict long-term emission control, nothing out-performs Sigma - the innovation of integrity.
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SIGMA® 500
• Suitable for use in alkali, acid and chlorine service
• Can be used for all concentrations of sulphuric acid
• WRAS approved for hot and cold potable water services.
• Standard compressibility
• Strong acids (except hydrofluoric)
to general chemicals
SIGMA® 511
• Can be used for all concentrations of sulphuric acid
• WRAS approved for hot and cold potable water services
• Suitable for oxygen & peroxide service.
• Standard compressibility
• Ideal for sealing food, pharmaceutical
and non-contamination applications
• Strong alkalis and other general
chemicals
SIGMA® 533
• Aqueous hydrofluoric acid below 49%
• Not suited for sealing molten alkali metals
or fluorine gas.
• Unique cellular structure – low load
sealing for damaged contact surfaces
• Layered structure enhances
dimensional stability and assists
installation of larger gaskets
SIGMA® 588
• Layers bonded by direct sintering – no adhesive layer or
potential leak paths
• Suitable for use in both concentrated acid and alkali service
• Ease of use – Eliminate jacket ‘fold over’ associated with
large envelope gaskets.
• High compressibility for ultra-low
bolt loads; plastic and glass lined
equipment
• Suitable for use across a wide range
of chemical media; acids, alkalis,
halogens and hydrocarbons
SIGMA® 600
• Universal – minimises inventory requirements
and eliminates ‘mis-application’
• Easy to cut, handle, install and remove
• Pigment and filler free – suitable for ‘contamination
sensitive’ applications.
SIGMA® 800
SIGMA® 800 is a high
quality expanded PTFE
sheet sealing material
with enhanced low stress
sealing characteristics
and improved blow-out
resistance.