Fibrecoat is polyurethane based roof sealer that contains draylon fibres to help knit together the polymer upon cure. Fibrecoat can be applied when wet/damp. To apply use an old brush that can be disposed of after application. Fibrecoat can take 1 week for full cure to take place depending on how thick it is applied. The draylon fibres help knit the polymer together and prevent it from easily tearing or breaking. Fibrecoat provides a 100% water tight repair. Only use in an area where there is ventilation due to the fumes emitted once opened.