1.Gasket used for mullions and transoms：Primarily adopts a wedge-shaped setting block structure, providing both load-bearing capability and watertightness. The commonly used material is EPDM, with a standard hardness generally between 70–80 Shore A.

2.Gasket used for mullions and transoms：Primarily adopts a wedge-shaped setting block structure, providing both load-bearing capability and watertightness. When in contact with silicone sealant or structural adhesive, the commonly used material is silicone rubber, with an optimal hardness range of 70–80 Shore A.

3.Sealing gasket between the operable sash and frame of curtain wall windows：Mainly adopts an O-shaped or lip-shaped structure. The common materials are EPDM (with a preferred hardness of 65 Shore A) or EPDM composite sponge (with the foamed section at around 35 Shore A). By designing the construction (shape) of the gasket, the operating force for opening and closing the sash is kept below 50N, while ensuring that the watertightness, airtightness, and energy-saving performance of the operable sash meet the design requirements.

4.Sealing gasket between the operable sash and frame：This area primarily uses a T-shaped water-shedding gasket structure, typically made of EPDM with a recommended hardness of 65 Shore A. As this is the third line of exterior sealing for the sash and frame, the T-shaped design effectively channels rainwater outward, preventing water ingress while ensuring that the resistance encountered when opening and closing the sash is not excessive. (If all three sealing lines were to use an O-shaped gasket, the increased resistance could negatively impact the operation of doors and windows.)

5.Inner side of the glass：Since this gasket is installed as the final step during glass installation, a fishbone-shaped structure is used. This design not only facilitates easy installation but also effectively accommodates installation tolerances of both the glass and the profile, ensuring watertight performance. EPDM is generally the material of choice. For improved handling during installation, a hardness of around 75 Shore A is preferred, though this can be adjusted according to the actual structure.

6.Outer side of the glass：As this gasket is installed on the exterior, the structure generally features a square profile with serrations and a water-shedding edge. This design effectively prevents rainwater infiltration, while the water-shedding edge directs water outward. In curtain wall applications, EPDM is the primary material used, with a recommended hardness of 70–75 Shore A.

7.Foamed Sponge Gasket：Manufactured using EPDM foamed material (finished hardness approximately 45 Shore A), primarily in a square profile. It is used within curtain wall internal structures for sound insulation and thermal insulation, while also providing a certain degree of water tightness.

8.Accordion Gasket, also known as Expansion Joint Gasket：Typically installed at the expansion joints of curtain walls, it is used to fill the gaps of expansion joints, preventing moisture and dust from entering the building. Additionally, the sealing strip provides sound insulation and thermal insulation, enhancing the overall comfort of the building. To maintain the wave-like structure of the expansion joint, EPDM or TPV materials are generally used (since the production process of TPV differs from that of EPDM, TPV material is better suited to preserving the corrugated shape of expansion joints), with a hardness of 70–75 Shore A. In most cases, silicone material is not recommended for expansion joints, as they usually require auxiliary fixation with nails and are subject to frequent expansion and contraction in actual use. Conventional silicone materials lack adequate tear resistance and therefore cannot meet the practical requirements of this application.