Do you really know windshield polyurethane sealant?

Polyurethane sealant is widely used in the automotive industry, mainly for automotive windshield sealing, caulking/weld sealing, structural sealing, interior bonding, floor bonding sealing, air-conditioned luggage compartment bonding sealing, and other bonding sealing.

As the bonding medium between automobile glass and vehicle, glass glue has a great impact on automobile safety. Especially in cars with airbags, when an accident occurs, if the bonding strength of the glass glue is not enough, it is easy to separate the car glass from the body, and the airbag cannot play a real role because of the lack of glass support in front of the car, which poses a threat to the safety of the majority of owners!

Proper windshield bonding is a guarantee of personal safety.

◆ Prevent occupants from being thrown from the car in a collision

◆ Prevent roof collapse in rollover accidents

◆ Act as a tailgate for airbags

'Three points of material, seven points of construction', good construction is an important guarantee of quality. Before sizing, it is necessary to test the adhesion of sealant and substrate, determine the bonding effect of sealant and substrate, select the appropriate cleaning agent and primer.

Sizing process:

(1) Surface cleaning: improve the adhesion of polyurethane sealant and substrate.

Pour appropriate amount of supporting cleaning agent into a clean and dry special container, dip clean absorbent cotton and other materials into cleaning agent, clean the grease and dust on the surface of the sticky part, and then dry fully.

(2) Apply primer: improve the adhesion of polyurethane sealant and substrate.

Fully shake the primer, and take appropriate amount into a special container, with a soft brush such as wool on the clean sticky parts of a thin layer of undercoat, fully dry.

(3) Sizing and installation:

According to the need can be in point or strip sizing, sealant construction is completed, in the sealant can be operated within the time to complete the windshield and car body bonding positioning and dressing.

As the owner: When the car glass replacement, on the one hand, the quality of the car glass is what we need to pay attention to, on the other hand, when installing the car glass, we must also carefully ask the installation details, especially the choice of the use of car glass glue, to avoid bad businesses to shoddy, with construction glue instead of polyurethane sealant and other things!

As a car glass installer: the driving safety of the owner should be the first consideration! If the installed model is equipped with an 'airbag', be sure to give the owner sincere advice according to the safe departure time stipulated by the polyurethane sealant manufacturer! In terms of installation process, according to the standard installation process of automotive glass, handle the substrate bonding surface well, and prevent the opening of glue and water leakage caused by the cleaning problem of the substrate