Window caulking
Sealing joints in the building industry. Applications

When the sashes of old wooden windows have too much air leakage, they can be brought back into close contact by overmoulding a strip of silicone sealant as follows:

• with the window open, clean the area where the silicone sealant will be applied;

• apply a coat of primer and allow to dry for 20 minutes;

• apply a bead of translucent silicone sealant to the prepared areas, the thickness of which must be greater than the gap to be filled;

• Brush on a coat of the release agent supplied by the sealant manufacturer, extending over the sides of the bead;

• Unroll the plastic release tape supplied and gently apply it to the still-fresh mastic bead;

• close the window completely: the bead of...