Pu Foam sealant is widely used in the installation of doors and windows

Pu Foam sealant is mainly used to fill the transition structure between the door frame, window frame and wall when decorating the door frame and window, which should be suitable for fixing on the wall, and also suitable for firmly fixing the door frame and window frame on the wall. The Pu foam sealant just fills the gap, making the house relatively isolated from the outside, heat preservation and sound insulation.

1. Anti-theft door

Installing door frames, if it is a security door, overweight doors still need to be reinforced with expansion screws or wooden screws. Different doors have different fixing methods, and security doors must be fixed with expansion screws, broken bridges, plastic steel, and colored aluminum, all of which need to be fixed with nails.

2. Bedroom door

If it is a bedroom door, it mainly depends on foam joint sealer. foam joint sealer construction is also a prerequisite. The foundation surface should be free of dust, spray a small amount of water to wet the contact surface, and buy regular brand foam joint sealer, such as Shanghai Weigu foam joint sealer. Fake brands are not easy to stick, and foam joint sealer is afraid of ultraviolet radiation after solidification, so the surface must be treated, or it will age quickly.

3. Window

Whether the windows are plastic steel, aluminum alloy, bridge cutoff aluminum, or air tight windows, when we measure the windows, we will reduce the gap of two centimeters on the original size, so that it is easy to level during installation, and then fix them with expansion wires, apply Pu foam sealant, structural glue, and foam sealant to fill the joints, and also play a certain seismic role. The structural glue is mainly for waterproof.

4. Wooden door

When installing the wooden door, it is not very firm just by using foam joint sealant, because foam joint sealant only plays a temporary role, and when we install the door, generally there are certain gaps between the door frame and the wall, so we can use foam joint sealant to fill these gaps, and the specific fixing role is only temporary. After a long time, combined with the effect of external force, the door frame will be out of shape and sink. When installing the wooden frame, we must adjust the perpendicularity of the door frame to avoid the drying and swelling of foam joint sealant after we apply foam joint sealant The door frame is damaged by the action, so the front foaming Pu foam sealant should be selected when selecting Pu foam sealant, and the Pu foam sealant with large rear expansion is not suitable for the installation of wooden doors.