What are the best practices for applying waterproof expanding foam sealant to ensure a durable and effective seal?

To apply waterproof expanding foam sealant effectively, follow these best practices:

1. Clean and dry the surface thoroughly before application.
2. Wear protective gear such as gloves and goggles.
3. Shake the canister well before use.
4. Apply the foam in a steady and even manner to prevent gaps.
5. Allow the foam to expand and cure completely before trimming off any excess.
6. Consider using a primer or sealant on the foam for added protection.
7. Regularly inspect and maintain the sealed area for long-lasting durability.