Containment Tanks & Bags

Holscot are World leaders in the development of FEP Tanks and Diaphragms for Liquid Containment and Expulsion. Our exclusive Fluoropolymer processing experience facilitates innovative constructions with proven use in space.

Proud exhibitors at the Space Propulsion Exhibition 2022. Estoril, Portugal 9-13 May.

FEP Anti-Moisture Membranes

In addition to unrivalled chemical resistance, FEP, PFA and ETFE improve on their parent material PTFE by being non porous.  As such they represent an effective barrier to ingression by liquids into high risk areas.  Nowhere is this more vital than in aircraft.  Two areas in particular have benefitted from the use of fluoropolymers.

FEP Membranes in Aero Engines

FEP-Membranes-in Aero-EnginesThe use of Kevlar mesh around the fan casing of aircraft engines is widely acknowledged as an indispensable safety feature.  However, Kevlar can be attacked by the more aggressive liquids which occur within these engines.  It is vital therefore that the Kevlar is protected.

Holscot provides a heat shrinkable sleeve manufactured entirely from FEP, the most chemically inert thermoplastic.  The protective sleeves are custom manufactured using film manufactured by Holscot.  The thickness varies from 0.25 – 0.5mm and the sleeves are chemically etched on both sides to secure the sleeves to the casing and to facilitate later repairs if necessary.  The sleeve itself can be manufactured to any diameter and width with whatever percentage shrink down is required.  In addition, a pigment can be added for greater visibility.  The shrink down can be achieved with any high powered hot air gun and a partial bond to the Kevlar is normal practice.

The sleeve is a proven protection barrier to all known Aviation Fluids and is capable of withstanding any normal maintenance knocks and bumps without compromising its efficiency.

A Repair regime using Self Adhesive Tape of FEP has been developed to allow on-site repairs.

Toilets and Galleys

In the toilet and galley areas of aircraft, there will be inevitable spillages of liquids and it is imperative that these are contained within that area to prevent ingression into the avionics of the aircraft. FEP has been widely used to provide that barrier because of its non-porosity and non-flammability.  Holscot has provided this in the form of simple sheets of material or as custom made membranes fabricated from sheet, vacuum formed welded and etched to exactly fit the contours of the area in question.


Why Holscot?

  • World-class expertise in fluoropolymers
  • Access to Holscot proprietary in-house manufacturing techniques
  • Proven manufacture and success since 1970

Working with Holscot you will immediately be able to access our expertise and manufacturing know-how. Complete the contact form below to get in touch.

See our Case Studies & Blog Posts for more information, & connect on LinkedIn

Case Study

British Aerospace

The BAe146 aircraft was the baby of British Aerospace in Manchester and it was there that all the internals were also constructed including the toilet and galley areas...

View Case Study