For double wall tubing a PTFE tube is installed inside a 3/4” x 5/8” LDPE (Yellow) outer tube to provide mechanical protection and also secondary containment for the inner tubing and is available by the metre in the following sizes.
CSS use Dupont PTFE 62 which is a premium resin that has increased thermal stability, flexlife, stress-crack resistance and clarity.
Both yellow and black LDPE outer tube is UV stabilised, please specify preference with order.
Please note the longest length double walled tube with a continuous inner and outer is 100 meters.
On certain sizes we can do a longer continuous inner with just an outer joint. A surcharge applies for this service.