A couple of customers have called me this week to say that their tube of Stormsure Flexible Repair Adhesive appears to have gone white, waxy and hard. This is because it has frozen! Just warm it up to room temperature for a few minutes and it will return to the liquid state. We put our tubes in a cup of hot water. Normally it will go waxy below about 3ºC and get harder as the temperature drops. However once you have made your repair (let it cure at room temperature) the finished product will remain strong and flexible even when frozen.