Special Price £27.60 £23.00 Regular Price £49.20

Permaroof 500 Liquid Membrane

25kg & 6kg

BBA Approved

For further product information please contact us

01773 441 947

Orders placed by 2pm will normally be delivered the next working day (mainland uk Monday - Friday)

Collection available from Alfreton, Derby

Free Installation guides available see bottom of this page.


Permaroof 500 Liquid Membrane is used to waterproof the main area (in 1 layer) using the accelerator at a ratio of.

110ml per litre 

500ml per 6kg

2000ml per 25kg


Mix the accelerator at a low speed for a couple of minutes until its fully mixed. Working life of mixed product in the tin is approximately 20-25 minutes.


Coverage rate of 1.8 kg/m2 to achieve a minimum of 1.4mm thickness

6kg accelerated tin = 3-4m2

25kg accelerated tin = 12-15m2

Drying Time

Permaroof 500 Liquid Membrane will be shower-proof in 30-40 minutes and will achieve full adherence and strength in 24 hours.

It can be re-coated if required after 2 hours or Topcoat UV can be applied


25kg & 2 Litres Accelerator

6kg & 0.5 Litres Accelerator


Permaroof 500 Liquid Membrane can also be used without accelerator with a drying time of 4-6 hours and must be applied in 2 layers of 1kg

Installation Guides

**We supply all necessary Accelerators, Primers, Matting & Topcoat on our online shop**
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