Case Studies

PURAFLEX® Hydrocarbon and Chemical Resistant E n v i r o nm e nt a l P r o t ec t i o n Ba r r i e r M em br an e Uniclass L68184:P71 EPIC F872:X71 CI/SfB Ln6 (L52) Revision 1.0 UNRESTRICTED Puraflex Case Studies www.puraflex.com Puraflex? is a Trade Name of Industrial Textiles & Plastics Ltd. E&OE. Patent Application No. GB 1102802.2 ? Industrial Textiles & Plastics Ltd 2011 Industrial Textiles & Plastics Ltd Stillington Road Easingwold York YO61 3FA United Kingdom Tel: +44 (0) 1347 825200 Fax: +44 (0) 1347 825225 E-mail: technical@itpltd.com Web: puraflex.com CERT NO.2318/00 Vapour & Gas Barrier Protection The migration of hazardous gases and vapours from both natural and man-made sources places restrictions on buildings by posing a risk to end users. These hazards include explosions, building failure and asphyxiation, all of which can be resolved with the installation of a suitable vapour and gas barrier membrane such as Puraflex. Foundations are designed with under-slab ventilation to carry vapour and gases away from the construction and prevent any build-up of vapour and gas. Puraflex is welded on-site to provide a continuous barrier above the ventilation layer to prevent the ingress of vapours and gases into the building. One-piece pre-fabricated panels can also be supplied. Contractor: Cast Contracting Structural EPS Protection Used on many civil engineering and groundwork projects, Expanded Polystyrene (EPS) is a cost-effective fill material in structural load bearing installations. EPS is however vulnerable to attack from hydrocarbon vapours and liquids. Dissolution of EPS is initiated by any contact with these hydrocarbons leading to structural failure. EPS blocks are protected by encapsulating them with Puraflex and fully welding all the seams. This encapsulation process protects the EPS from the migration of hydrocarbon solvents preventing the dissolution of the EPS and thereby increasing the service life of the construction. Client: National Rail Consultant: Atkins Global Contractor: Cordek Protection of Attenuation Tanks As the built environment expands, more innovative solutions are required to control surface waters to prevent flooding and watercourse contamination. Sustainable drainage systems (SuDS) are used to manage surface water. Encapsulating SuDS prevents water from being polluted by soil contaminants. Puraflex is used to encapsulate attenuation tanks to prevent hydrocarbon contaminants present in the soil from migrating into the water storage system. Hydrocarbon contaminants would not only pollute watercourses, but may also compromise the structural integrity of the system if the polymeric materials are vulnerable to chemical attack. Client: Cardinal Pole School, Hackney Consultant: Testal Limited Contractor: Keytec Secondary Containment Protection Secondary containment is necessary to protect the environment form industrial plants and storage installations where potentially hazardous chemicals are stored. Liners are also widely used in heap leaching and evaporation ponds. These containment solutions allow for the storage of chemicals without contaminating the surrounding environment. Puraflex is widely used as a basal liner or as a liner for an existing structure. Puraflex lining structure was prefabricated under factory conditions ensuring the integrity of all welds. It was then folded up and transported to site prior to installation. Self-adhesive Tanking Membrane Tanking membranes are commonly used for waterproofing and to line storage vessels and underground structures. Hydrocarbons and other aggressive chemicals may permeate with relative ease through the common mono-polymer membrane materials. Puraflex ‘Tank’ incorporates an adhesive backing to provide a simple and easy installation to primed surfaces. Tanking out tunnels and other underground structures with Puraflex ‘Tank’ prevents the ingress of hydrocarbons and other chemicals PURAFLEX® Hydrocarbon and Chemical Resistant E n v i r o nm e nt a l P r o t ec t i o n Ba r r i e r M em br an e Puraflex Permeation Modeller Software www.puraflex.com Puraflex? is a Trade Name of Industrial Textiles & Plastics Ltd. E&OE. Patent Application No. GB 1102802.2 ? Industrial Textiles & Plastics Ltd 2011 Industrial Textiles & Plastics Ltd Stillington Road Easingwold York YO61 3FA United Kingdom Tel: +44 (0) 1347 825200 Fax: +44 (0) 1347 825225 E-mail: technical@itpltd.com Web: puraflex.com CERT NO.2318/00 PURAFLEX COMPARISONS Chemical CAS Puraflex 0.45mm HDPE 1.5mm Butyl 1.5mm EPDM 1.5mm PVC 1.5mm CSPE 1.5mm CR 1.5mm Benzene 71-43-2 Aromatic Hydrocarbon 3.52E-04 5.69E+02 1.90E+03 1.52E+03 1.90E+03 1.90E+02 1.52E+03 Butyl benzyl phthalate 85-68-7 Carbocyclic 5.80E-03 4.92E+01 1.64E+02 1.31E+02 1.64E+02 1.64E+01 1.31E+02 Carbazole 86-74-8 Heterocyclic 1.58E-01 8.56E+01 5.26E+02 5.32E+02 6.65E+02 6.65E+01 5.32E+02 Chlorobenzene 108-90-7 Halogenated Hydrocarbon 3.82E-03 4.43E+02 1.48E+03 1.18E+03 1.48E+03 1.48E+02 1.18E+03 DDT 50-29-3 Halogenated Hydrocarbon 1.84E-03 4.25E+01 1.42E+02 1.13E+02 1.42E+02 1.41E+01 1.13E+02 1,1-Dichloroethane 75-34-3 Halogenated Hydrocarbon 5.87E-01 1.28E+03 4.25E+03 3.40E+03 4.25E+03 4.26E+02 3.40E+03 Diesel Fuel 68334-30-5 Aliphatic Hydrocarbon 8.57E-04 1.48E+02 4.91E+02 3.94E+02 4.91E+02 4.92E+01 3.94E+02 Fluorene 86-73-7 Aromatic Hydrocarbon 3.23E-06 1.41E+02 4.69E+02 3.75E+02 4.69E+02 4.69E+01 3.75E+02 HCH 58-89-9 Aromatic Hydrocarbon 4.79E-05 5.44E-03 1.37E-01 9.21E-01 4.90E+02 5.29E-01 3.93E+02 Isopropyl Benzene 98-82-8 Aromatic Hydrocarbon 5.64E-05 1.57E+02 5.22E+02 4.18E+02 5.22E+02 5.23E+01 4.18E+02 MTBE 1634-04-4 Organic Ether 1.45E+00 4.26E+02 1.42E+03 1.14E+03 1.42E+03 1.42E+02 1.14E+03 MIK 563-80-4 Organic Ketone 9.43E+00 8.05E+02 2.68E+03 2.15E+03 2.68E+03 2.69E+02 2.15E+03 Vinyl Chloride 75-01-4 Halogenated Hydrocarbon 1.67E-01 1.84E+03 6.15E+03 4.92E+03 6.15E+03 6.15E+02 4.92E+03 Chemical Contaminant Concentration: 100 mg/kg, Soil Temp: 20 ºC, Partition Coefficient: none applied, Disclaimer of Express and Implied Warranties Subject to the limitations, disclaimers and statements as set forth below, Industrial Textiles & Plastics Ltd. (ITP) represents to the Buyer that the product or products delivered to the Buyer conform(s) to the manufacturer's description and specifications attached to or delivered with the product. The representation that ITP makes to the Buyer that the product or products conform(s) to the manufacturer's description and specifications applies only under such circumstances when the Buyer utilises the product or products as specified and under normal use for which said product was intended. Any alleged nonconformity shall be made in writing to ITP specifically stating and describing any such alleged nonconformity. The representation by ITP that the product or products delivered to the Buyer conform(s) to the manufacturer's description and specification as attached to or delivered with the product is expressly in lieu of all other representations, warranties, expressed or implied, and of all other obligations and liabilities, including consequential damages, on the part of ITP. ITP neither assumes nor authorises any person to assume for it any other liability in connection with the sale of the product. The representation of conformity by ITP as represented by ITP shall in addition to the above be null and void in the event that the product is misused or handled in a negligent manner by the Buyer or any third party. ITP shall not be liable for damages or delays, if such occur, on account of defective material or workmanship or delays in shipment, nor will any allowances be granted for any repairs, alterations, work done or expense incurred in connection with any repairs, alterations or replacements except on specific written authority by ITP. ITP excludes to the fullest extent permitted by law any liability or responsibility for injuries or damages to persons or property arising out of the use or operation of the product as herein contemplated, and Buyer hereby agrees to indemnify and save harmless ITP from all such excluded liability and responsibility. Nothing in this disclaimer of express and implied warranties shall limit or exclude ITP’s liability for death or personal injury caused by its negligence or for any other matter in respect of which it will be unlawful for ITP to exclude or restrict liability. ITP shall not be liable for any consequential damages for any reason including but not limited to those contemplated herein and whether such consequential damages may have been foreseeable, proximately caused or otherwise occurring. ITP emphasises that the data for the chemical resistance is based on data from multiple sources. ITP does not guarantee the accuracy and correctness of such data, and does not accept any responsibility for any loss or damage that result from the use by customers or by any third parties to whom such data may be transmitted. The user is required to carry out the appropriate tests to ensure the suitability and safety of the products for the use envisaged in accordance with all applicable regulations. No warranties or assurances of reliability, suitability or fitness for a particular purpose of specimens or data are offered. Final determination of the suitability of any information or material for the use contemplated and the manner of use is the sole responsibility of the user and the user must assume all risk and liability in connection therewith. The information in this document, specifications, samples and Puraflex Permeation Modeller software are merely illustrative and do not form part of any contract or any intended contract. They are supplied free of charge. Test results are obtained under laboratory conditions on new material and not under actual usage conditions. Test results only relate to the sample tested. Due to a policy of continued research & development, ITP reserves the right to alter the details as described without notice. Products are offered subject to our Conditions of Sale, which are available on request. This disclaimer of Express or Implied Warranties constitutes a significant limitation on the rights and remedies otherwise available to the Buyer, which the Buyer freely and voluntarily acknowledges and accepts as part of the consideration for the contract to purchase the product or products from ITP. 0.00E+00 2.00E+02 4.00E+02 6.00E+02 8.00E+02 1.00E+03 1.20E+03 1.40E+03Puraflex 0.45mmHDPE 1.5mmButyl 1.5mmEPDM 1.5mmPVC 1.5mmCSPE 1.5mmCR 1.5mm Vinyl ChlorideMethyl IsopropylKetone (MIK)HexaneFluoreneBenzene