As a purchasing manager, have you ever encountered the problem where the door and window seal brush strips you purchased not long ago quickly developed serious quality issues? The bristles either fall out, rendering the seal ineffective, or the color fades, affecting the aesthetic appeal of the product. These issues significantly increase the risk of complaints from customers or warnings from your boss. As a purchaser, you may feel unjustly blamed, since the seal brush strips seemed perfect when you bought them. So, why do they lose color or even shed bristles after such a short period of use?
In fact, during the procurement process, we often overlook understanding the product’s quality, focusing more on the price. However, products with very low prices in the market should raise a red flag. These items often appear fine when purchased, but their lifespan is quite short. This is because low-priced door and window seal brush strips are typically made from recycled materials, which are reprocessed into filament strands. What you see is the reformed appearance of secondary waste. These materials, due to containing various substances, cause the bristles to become less flexible, and they are more prone to discoloration and the formation of water-like bubbles on the surface. These issues cause the brush to quickly lose its quality on doors and windows that are frequently opened and closed, eventually revealing the poor core quality.
Therefore, when purchasing door and window seal brush strips, we should aim for a high cost-performance ratio, rather than choosing the lowest price. A 30% cheaper purchase might lead to 200% more in repair costs, which is clearly not a good deal. So, how can we select higher-quality seal brush strips?
First, we need to carefully check the raw material source from the manufacturer. Good quality starts with good materials. When buying brush strips made from different materials, pay attention to the purity of the bristles. The higher the purity of the bristles, the more durable they will be.
Second, we must inquire about the manufacturer’s production standards. A standardized and streamlined production process helps maintain consistent quality, such as tolerances, tensile testing, and the production steps—all of which are crucial.
Nylon strip brushes use nylon filaments, which are soft, highly elastic, and wear-resistant, making them ideal for applications in machinery, junction boxes, door bottoms, cabinets, escalators, vacuum cleaners, and automobiles. They primarily provide excellent sealing and dustproof, insect-proof, pinch protection, and thermal insulation functions. Through special processing techniques, additional properties such as flame retardancy, antistatic, and UV resistance can be added to the product.
Nylon strip brushes are widely customizable, with adjustable base widths, side heights, total heights, and lengths to meet various application scenarios. They can also be produced in different forms through processes such as stamping, punching, cutting, and winding. Slanted brushes, punched brushes, fan-shaped brushes, internal (external) brushes, and spring brushes are all derived from nylon strip brushes.
Classification of Brushes:
- By Material: Plastic filament brushes, animal hair brushes, plant fiber brushes, steel wire brushes, and copper wire brushes.
- By Application: Brushes for doors and windows, office furniture, elevator edge protection, industrial windproof brushes, and industrial dustproof brushes.
Brush Styles: There are many styles of brushes, not just the simple straight brush, but also T/F/H/U-shaped brushes. Nylon brushes have better wear resistance, and they also possess characteristics such as high-temperature and acid-alkali resistance, as well as excellent elasticity.