Do I Need To Use Silicon Sealant On Normal PVC Gutter Joints?
All gutter seals should be lubricated with a silicone spray to ensure an easy fit and allow for movement caused by expansion and contraction. Failure to do so will void Floplast's manufacturer's guarantee.
As the gutter is clipped in place, the downward pressure applied by the fascia brackets forces the gutter down onto the seal, compressing it to create a watertight joint.
The efficiency of the seal is increased by spraying with silicon lubricant prior to the gutter insertion. This helps to keep the seal free from dirt particles whilst improving movement across the sealing strip during expansion and contraction of the system, prolonging the life of the whole gutter system.
