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What are the typical classifications and applications of seal strip extruders?

Time：

2019-10-13

A sealing strip is a product designed to seal an opening, making it difficult to open and providing functions such as shock absorption, water resistance, sound insulation, thermal insulation, dust prevention, and secure fixation. Sealing strips are available in various materials, including rubber, paper, metal, and plastic. They are generally categorized into the following types: 1. PVC‑based sealing strips: These strips incorporate plasticizers and other additives to enhance their heat resistance, toughness, and ductility. PVC sealing strips are easy to mold, recyclable, and reusable. 2. EPDM rubber sealing strips: This type of sealing strip is a new material that has been developed in recent years through the integration of advanced foreign technologies and domestic research and development.

Sealing strips are generally categorized into the following materials:

1. Sealing strips made from PVC material

PVC sealing strips are formulated with plasticizers and other additives to enhance their heat resistance, toughness, and ductility. They are easy to mold, recyclable, and reusable.

2. EPDM rubber sealing strip

This sealing strip is a new material developed in recent years, based on imported foreign technologies and domestic research and development. It is primarily used as a seal for automotive doors and windows, and in recent years has also begun to be employed in architectural door and window seals. Its outstanding advantages are:

① Its performance and service life are comparable to those of stone‑filled ternary ethylene–propylene–diene monomer (EPDM) rubber sealing strips.

② Processing energy consumption is lower than that of stone‑based ternary ethylene–propylene–diene monomer (EPDM) strips (comparable to PVC).

③ Free of halogens and metals such as lead, and recyclable after several years, thereby meeting the requirements for green building materials.

3. Silicone sealing strips: Needless to say, this is one of the higher‑end materials for sealing strips, virtually odorless. Most of our phone cases are made from silicone.

4. TPE material: TPE is commonly used in everyday yoga mats, and it’s also the material of choice for some high-quality silicone mats. It’s equally well suited for use in sealing strips.

Hebei Shuangda Rubber and Plastics Machinery Co., Ltd. is a modern enterprise that integrates the research and development, manufacturing, and sales of complete sets of extrusion equipment for rubber, silicone, and plastics. Our company is located in the Liyuantun Industrial Zone in southeastern Hebei, with convenient transportation access.

The company’s main products include rubber extruders, rubber sealing strip extruders, silicone sealing strip extruders, plastic sealing strip production lines, plastic profile production lines, elastomer extruders, and other extrusion equipment, as well as manufacturing machinery for engineering seals, automotive seals, wire and cable applications, air-conditioning hoses, braided hoses, automotive fuel lines, waterstop strips, and related products.

Our company adheres to the principle of “customer-centricity and integrity,” regarding equipment as the lifeblood of the enterprise. We provide customers with high-quality equipment and services, backed by robust technological support.

We cordially invite domestic and international clients to visit our facility for guidance and business discussions, working together to achieve mutual success.