Roofing emulsions like Henry 107 are typically water based asphalt emulsions with controlled solids content and additives to support film build and adhesion. Performance limits usually relate to cure sensitivity to weather, ponding water resistance, and thickness control. If applied too thick or under high humidity, trapped water can delay cure and reduce early water resistance. Buyers should check data for solids content, recommended wet mil thickness per coat, cure time assumptions, reinforcement compatibility, and service temperature limits of the cured residue.