When repairing fiberglass with resin, what catalyst is recommended?

Using a room-temperature catalyzed resin when repairing fiberglass is recommended because it allows for the curing of the resin at ambient temperatures without requiring external heat. This type of catalyst typically involves a hardener or curing agent that, when mixed with the resin, initiates a chemical reaction that hardens the resin at room temperature over a specified period. This approach is particularly advantageous for small repairs since it simplifies the process and reduces the risk associated with applying heat, which could potentially damage the surrounding materials or require additional equipment and setup.

In contrast, heat-based catalysts might be more complex to manage and can introduce risks of overheating or burning the fiberglass. Chemical catalysts can also be beneficial in some scenarios, but they may not be necessary for simple repairs where the convenience of using room-temperature catalyzed resin is sufficient. Not requiring any catalyst for simple repairs could result in inadequate curing and weaker structures, making the choice of a room-temperature catalyzed resin the safest and most effective option.