Metal parts and plastic parts are often bonded in applications such as toys, machine components, and electronic components. When bonding metal to plastic, the adhesive typically needs to meet three main requirements:

1. Fast-drying; using fast-drying glue is more convenient and can enhance production efficiency.

2. No discoloration; discoloration can affect the product's appearance.

3. Eco-friendly, these products are generally used for everyday items.