The reasons for cracking during the production of rubber waterstop

I. Raw materials

1. Poor material quality

If the rubber material used in the production of waterstop is of poor quality, it may lead to inherent defects in the rubber. These defects may increase the hardness of the rubber during the production process, resulting in cracking.

2. Improper use of vulcanizing agents

The vulcanizing agent is an essential element in the production of rubber waterstop. However, improper use of the vulcanizing agent can harm the rubber. Both too much and too little can cause issues. Too much vulcanizing agent can harden the rubber. Too little can prevent full vulcanization, causing cracks.

II. Production process

1. Unreasonable mold designs

An unreasonable mold design for rubber waterstop may cause problems. It may lead to an uneven surface, unclear internal structure, and incorrect dimensions. These issues can affect the quality and service life of the rubber waterstop.

2. Unstable molding temperature

Unstable molding temperature can also cause cracking in rubber waterstop. If the molding temperature is too high or too low, it will have adverse effects on the rubber. A high temperature will slow vulcanization and make the rubber too hard. A low temperature will make it too soft.

III. Solutions

1. Improve the selection of raw materials.

Using high-quality raw materials is key to preventing cracks in rubber waterstop. Especially, the quality of rubber requires higher standards. It can prevent cracking in the product by ensuring high-quality raw materials.

2. Reasonably control the use of vulcanizing agents.

The vulcanizing agent must meet production standards to ensure the right amount. This can prevent both over- and under-vulcanization. It will better avoid cracks in the rubber waterstop.

3. Strengthen quality control during the production process.

Controlling the production process is crucial in preventing cracking in rubber waterstop. We must improve quality control of parameters like temperature and pressure. This will stabilize the production process and reduce unexpected events. It will also improve the quality of rubber waterstops.