Introduction

This Chemical Resistance Guide takes its data from earlier Durapipe (or other Aliaxis Group company’s) publications, updated and re-presented in the current format. It covers all of the products in the Durapipe product range.

Most of the data will have been based on laboratory exposure testing. This could have been simple immersion testing carried at various temperatures or may have been one of a number of types of “Environmental Stress Crack Resistance” procedures which take into account the fact that in pressure pipe applications the polymer will be subject to arrive to a variety of stresses and strains whilst in use. The effect of exposure is usually determined by appearance and change to physical properties of the test piece. Many of the test procedures have been adopted as ISO or ANSI standards.

In using this data, customers are asked to bear in mind that laboratory exposure testing can provide a useful guide but cannot completely replicate all of the conditions of any given full scale installation (pressure variation and surges, temperature cycling, concentration changes etc). For this reason it is not possible to offer a process guarantee.

Whilst the data presented is useful guide suitability, it does not cover the many trade chemicals in use or formulations involving mixtures of chemicals. For more specific guidance, please ask our Technical Services Team or contact our chemist directly with details of your application.


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ABCDEFGHIJKLMNOPQRSTUVWXYZ
Code Substance CAS number Concentration ABS PVCU Corzan PP HDPE PVDF PLX EPDM FPM
Sodium bicarbonate 144-55-8 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium bisulphate saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium bisulphite 7631-90-6 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium bromate 7789-38-0 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium bromide 7647-15-6 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium carbonate saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium chlorate 7775-09-9 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium chloride 7647-14-5 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium chlorite 7758-19-2 2% aqueous solution 20°C 20°C 40°C 20°C 20°C 60°C N/A max -
Sodium chlorite 7758-19-3 25% aqueous solution - 20°C 40°C 20°C - 60°C N/A max -
Sodium cyanide 143-33-9 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium dichromate saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium ferricyanide saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium ferrocyanide saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium fluoride 7681-49-4 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium hydroxide ≤ 50% 40°C 40°C A 80°C 60°C - N/A max -
Sodium hydroxide* > 30% 40°C 40°C A 80°C 60°C - N/A max -
Sodium hypochlorite 7681-52-9 ≤ 0.5% aqueous (alkaline) solution 20°C 60°C 80°C 20°C 20°C N/A max max
Sodium hypochlorite ≤ 5% aqueous (alkaline) solution - 40°C 60°C 20°C 20°C 80°C N/A max max
Sodium hypochlorite* 5 - 15% aqueous (alkaline) solution - 20°C 40°C - - 60°C N/A max max
Sodium iodate 7681-55-2 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium iodide saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium metabisulphite 7681-57-4 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium methylate 30% solution in methanol - - - 20°C - - 20°C max -
Sodium nitrate 7631-99-4 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium nitrite 7632-00-0 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium phosphate(s) saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium silicate saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium sulphate saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium sulphite 7757-83-7 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium tetraborate 1308-96-4 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sodium thiosulphate saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Starch 9005-25-8 saturated aqueous 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
Sulphamic acid 5329-14-6 saturated aqueous 60°C 60°C 80°C 60°C 60°C 80°C N/A max -
a Sulphuric acid 7664-93-9 ≤ 10% 60°C 60°C 80°C 80°C 60°C 80°C N/A max max
a Sulphuric acid 7664-93-10 10 - 30% 60°C 60°C 80°C 60°C 60°C 80°C N/A - max
a Sulphuric acid 7664-93-11 30 - 50% 20°C 60°C 80°C 60°C 60°C 80°C N/A - max
a Sulphuric acid 7664-93-12 50 - 70% - 60°C 80°C 40°C 20°C 80°C N/A - max
a Sulphuric acid - fuming - - - - - - N/A - -
a Sulphuric acid* 7664-93-13 70 - 85% - 20°C 60°C 20°C 20°C 80°C N/A - max
a Sulphuric acid* 7664-93-14 95 - 96% - A 40°C - - 60°C N/A - max
a Sulphuric acid* 7664-93-15 98% - - 40°C - - 40°C N/A - max
Key

xx°C - Max recommended temperature
- unsuitable or insufficient data
Max - seal can be used at the tabulated maximum temperature of the pipework system for this specific chemical. In some cases lower temperatures have been quoted where there is insufficient data at higher temperatures
A - Applicable in some cases. Consult Durapipe for advice on specific applications
i - Covers a wide range of applications and compositions. Please provide detailed application information
* Chemical requires the use of Griffon HCR-36 solvent cement in combination with Griffon HCR cleaner (for PVC-U and Corzan).