The rubber mat is often provided by molding and finished parts. It has excellent elasticity and is not easy to tear. It is suitable for the bonding surface with low temperature and can be reused many times. Rubber gaskets are divided into two kinds of raw materials and uses: one is a part that seals air, and a rubber mat that is not resistant to oil, such as an air cleaner shell gasket. The disadvantage of this kind of rubber pad is that the oil resistance is poor, and the oil is prone to aging, expansion and deformation. The other is the part of the sealing oil, which is made of rubber mats with oil resistant materials, such as fuel tank caps, precipitation rings, diesel oil and oil filter filter ends, air filters, distribution pump body covers, and the like. In recent years, an oil-resistant rubber mat has emerged, which is made of nitrile rubber and natural rubber, and is also added to asbestos yarn, which is widely used for joint sealing in engine fuel system parts. If the rubber pad is damaged and damaged, and the shape of the finished part is not complicated, the rubber inner tube can be used for self-use.

The rubber seal of the tank seal is sealed by the elastic force of the rubber. If the compression basin is too small, the compression seal elastic pad, and the compression soda is too large, exceeding the limit that the rubber can withstand, a sealing gasket will lose its elasticity and cause cracks. This is not sealed and affects the life of the rubber mat. Therefore, the compression of the gasket is suitable for the control of the thickness of the 1/3 pad.