Description
This red pipe insulation is a 10 m roll of closed-cell polyethylene foam lagging in the 16–18 mm size, covered with an extra layer of mesh polyethylene. It keeps heat in hot water and central heating pipes, and it handles temperatures up to +95 °C. It sits with the underfloor heating pipes at Renders World.
What Red Pipe Insulation Does
Bare hot pipes lose heat on the way to the tap or radiator. A foam sleeve around them keeps that heat in the water for longer.
- Closed-cell foam. The polyethylene is foamed with gas into closed cells, which is what makes it an insulator.
- Coated outer layer. An extra skin of mesh polyethylene covers the foam.
- Low heat flow. Thermal conductivity is about 0.036 W/mK.
- Wide temperature range. It is rated from -65 °C to +95 °C, and shrinks lengthwise by less than 1.65 % at 95 °C.
- Red for hot runs. The same lagging comes in blue, so flow and return, or hot and cold, can be told apart at a glance.
Where to Use It
Fit red pipe insulation on the hot side of the system:
- Hot water pipes running to and from the cylinder.
- Pipes running from the boiler.
- Central heating pipes.
- Hot water pipes under sinks and behind bath panels.
Measure the outside diameter of your pipe before ordering and match it to the 16–18 mm size. For cold runs, or to mark the return side, use the blue pipe insulation in the same size.
Specification
| Detail | Red pipe insulation 16 mm |
|---|---|
| Material | Closed-cell polyethylene foam, mesh skin |
| Colour | Red |
| Size | 16–18 mm |
| Length | 10 m roll |
| Temperature range | -65 °C to +95 °C |
| Thermal conductivity | About 0.036 W/mK |
| Density of the foam | 30–35 kg/m³ |
| Lengthwise shrinkage at 95 °C | Below 1.65 % |
| Water vapour resistance factor (µ) | 3500 |
| Supplier | PSW Trade Suppliers, product code DSF019 |
Ordering, Delivery and Returns
- Dispatch — Renders World sends orders out the same day when the stock is there.
- Delivery — the team quotes it after the order; parcels up to 25 kg travel next day and every delivery is kerbside.
- Collection — at the counter, Unit 9A, Central Trading Estate, Southampton SO14 5JP: Monday to Friday 7am to 5pm, Saturday 7am to 12pm.
- Returns — goods bought directly from Renders World can come back within 14 days in original condition; special orders and promotion purchases are excluded.
FAQ
Which pipe does the 16 mm size fit?
The size is 16–18 mm. Measure the outside diameter of your pipe and match it to that range before you order.
How much is in one pack?
One 10 m roll.
How hot can the pipe be?
Up to +95 °C. The foam is rated from -65 °C to +95 °C.
Is there a blue version?
Yes, the same 16–18 mm lagging in a 10 m roll comes in blue.
Where should I fit it?
Red pipe insulation goes on hot water pipes to and from the cylinder, pipes from the boiler, central heating pipes, and hot water pipes under sinks and behind bath panels.