Can I apply multiple layers? December 03, 2019 10:51 Updated Yes - Q²R Gelcoat requires a minimum of 1 layer. 2 layers are an option. Wait for 1h between layers. Related articles How long does the product need to dry/cure ? Can it be removed? How to maintain a seacraft coated with that product ? How to store the product after use? What is the shelf life once opened? How long will it last ?