Why is gel-coat taking long to dry?

Gel-coat may take longer to dry due to factors such as high humidity, low temperatures, or poor air circulation, all of which can hinder the curing process. Additionally, using a thick application can lead to extended drying times, as the surface may harden while the underlying layers remain tacky. Finally, the type of hardener used and the ratio of resin to hardener can also significantly impact drying times.