The core value of waterproof sealant does not lie in temporarily sealing leaky gaps, but in being able to maintain a sealing barrier for a long time and adapting to structural deformation. The improvement of durability has become the core direction of technological iteration in the industry. After being put into use in the market for several years, many general-purpose sealants often experience cracking, powdering, shrinking, and edge detachment problems. The fundamental reason lies in the formula system being unable to adequately cope with long-term complex environmental wear. Longkou City Baozhong Rubber and Plastic Company focuses on the aging and wear mechanism of materials, optimizes the formula, and continuously improves the long-term stability of the sealant.

　　The aging and wear of materials may be caused by various factors. Long-term exposure to outdoor ultraviolet radiation will damage the polymer chains in the gel. In underground and water conservancy scenarios, due to long-term immersion in water, hydrolysis reactions are prone to occur. In industrial areas, acidic or alkaline media will erode the gel, weakening its mechanical structure. Repeated expansion and contraction caused by temperature changes will accelerate the fatigue damage of the gel. Traditional sealant formulas usually focus on initial bonding strength, but lack consideration for the tolerance to repeated wear over many times. Baozhong Rubber and Plastic Company based on the aging and wear mechanism of materials, conducts formula optimization. By adjusting the proportion of reinforcing fillers and functional additives, the gel's resistance to photolysis, hydrolysis, and medium corrosion can be enhanced.

　　Currently, the application ratio of rubber materials and sealants in the engineering field is continuously increasing. Concrete, metal, rubber, and glass are widely used on various substrates. The thermal expansion coefficients of different substrates vary significantly, resulting in continuous displacement stress at the joints. If the rebound capacity of the sealant is insufficient, the stress accumulation will lead to gel rupture. The company has developed adaptive waterproof sealants for different substrate combinations. By adjusting the modulus range of the gel, the bonding strength and elastic buffering performance during deformation can be balanced on hard substrates, thereby reducing the risk of seal failure caused by structural displacement.

　　The phenomenon of product homogeneity within the industry is quite obvious. Most manufacturers still use mature and universal formulas, lacking customized adjustments for specific scenarios. Baozhong Rubber and Plastic aims to avoid falling into low-price competition in the ordinary product market and instead focuses on targeted improvements for specific application scenarios, such as old building renovations, underground water storage facilities, and the sealing of photovoltaic frame supports. For old wall substrates, their surfaces are loose and porous, and the company has optimized the wetting performance of the gel to enhance adhesion on porous substrates; for long-term water-immersed water storage facilities, the gel's waterproof barrier structure has been strengthened. Outdoor photovoltaic modules have been optimized to have anti-yellowing, insulation protection, and related performance to meet the exclusive usage requirements of specific application scenarios.

　　In addition to formula optimization, the control of production processes also directly affects the durability performance of the finished products. Insufficient dehydration of raw materials, uneven mixing, and imbalanced control of curing time will shorten the service life of the sealant. The company has established a complete raw material pre-treatment process, regulates the temperature control standards for multi-stage mixing processes, fixes the static curing process of the gel, and stabilizes the uniformity of the cross-linking network inside the gel. At the same time, the company has established a long-term sample retention observation mechanism, continuously tracking the performance degradation of the gel in different environments, and through reverse iterative formula adjustments, continuously reducing the degradation of product long-term performance, promoting the industry's transition from short-term compliance to long-term protection.