Fitting Tips: Cut the skirting to length using a fine toothed saw. Offer the trim up to check length and re-cut if needed. Lay the skirting face-down and apply a bead of Soudal Fix All Crystal bonding sealant down the full length of the trim, near the top and again near the bottom. Place the skirting in position pushing firmly back to the wall. Repeat this process until the room is complete.