Polar Clear Felt Seal - 2.5 Litre - Instant Waterproof Roof Sealant - Ideal for Flat or Pitched Felt, Shed & Garage Roofs - Easy to Apply

The felt roof on our lean-to conservatory was badly worn and caused major leaks indoors. A roofing expert told me the central cracks were too deep to repair, but I went ahead and tried it anyway.I opted for the 2.5-litre tin of Polar Premium, which was easily enough to fill all the deep cracks and then cover the entire surface of the roof. The consistency is thick and tar-like, but remains very easy to apply using any heavy-duty brush. I recommend getting several cheap ones and throwing them away after use as they will be almost impossible to clean.The substance has a relatively strong smell but is not too bad outdoors. It dries quite quickly, creating a rubberised waterproof film. I was delighted this product appears to have remedied all our major leaks after one easy application.

I have a 4 year old shed a due to seagulls pecking their food I had a few leaks. This paint did the trick. I've sealed all the joints and any pecked holes in the felt. As luck would have it rain in the night and checked no leaks.If you painting with a brush or a roller on felt be prepared to throw them away. Felt grit will get into you applicators.This paint really works and looks good too.

Painted my shed roof that was leaking seems to have worked no sign of water leaking in .

Easy to use as long as you accept the brush or roller needs to be binned after.Recovered the shed roof quickly, sealed all the cracks in the old felt. Happy with the result.Had some very heavy rain and no leaks!Would recommend.

I read the other reviews before purchasing and some said that it didn't go far so I ordered a large tin. I now have lots left! It paints on very easily and stays liquid for quite a while. Only time will tell if it is as waterproof as they claim. I also used it to seal joins in newly laid felt and it certainly seems to stick well.

My wooden shed was leaking so I have used 2.5 litres of felt seal. This is clear transparent liquid. I have used a paint brush and coated over roof felt. After 6 months now I notice infinite cracks under the transparent sealant. This caused full damage of roof felt. Wrong product to use over shed felt

Used this product before it’s brilliant and so easy to use and very tough and waterproof

Fibers get left behind as paint goes down in the tin and go into lumps