How we learn to repair ventilation duct hose well and make the mend place firmer and stronger during maintain ventilation ducts to prevent secondary damage?
1）We need to clean up the mend place. Only cleaning up the whole body can we find true damaged size and shape and make the suitable solution. Moreover, there should be no dust on the duct surface because the dust is easy to change the fastness between adhesive sides and mend place.
2）There should be no water on mend place. Because the adhesive side couldn’t be adhered on the ventilation duct surface if there is some water on the mend place and the ventilation ducting will not be repaired.
3）PVC Glue should be applied to each side. The surface of mend place and quick repairing tape should be painted evenly so it will be firmer and more stable.
4）Heating fixed. Heating the mend place of ventilation ducting with high temperature after repairing if it is necessary. Because heating will make two sides more secure.