The fiberglass casting tape set too fast what happened?
Fiberglass casting tape is impregnated with a resin to cause it to set fast. The more you work with it the better and faster you will be become at working with it. You can slow the set time by using cooler water, But it really does not change it any more than 15-30 seconds. Room temperature water is the standard water temperature for dipping the casting tape. It just takes some practice to get used to working with it. Sorry but there is no way to get the setting time any slower than that. Most cast technicians actually want it to set faster.