How to speed up Flex Seal drying?
Flex Seal Spray is designed to create a strong, waterproof barrier, but it needs time to dry and cure properly. While you should always follow the recommended dry and cure times, here are a few things to help the spray dry faster without compromising performance.
Drying Time Basics
Flex Seal Spray typically becomes dry to the touch within 2–3 hours and cures fully in 24 to 48 hours. However, factors like temperature, humidity, coat thickness, and airflow can significantly impact how quickly it dries, especially if you're working indoors or in cooler climates.
Tips to Help Flex Seal Dry Faster
1. Apply Thin, Even Coats
Multiple thin layers will dry faster than one thick layer. Allow each coat to dry to the touch before applying the next.
2. Choose the Right Time of Day
When possible, apply Flex Seal Spray during the warmest, driest part of the day. Cold or humid weather slows drying time.
3. Improve Airflow
Ventilation is key. Use a fan or ensure good air circulation to help speed up evaporation and curing. This is especially helpful for indoor applications.
4. Minimize Humidity
If you’re working indoors, a dehumidifier can help remove moisture from the air, allowing Flex Seal to dry more efficiently. For outdoor applications, wait for less humid weather when possible.
5. Store Product Properly Before Use
If your Flex Seal has been sitting in a cold garage or shed, let it warm to room temperature before applying. This will help the product spread and dry more evenly.
Flexpert Tip: Always follow label instructions. Trying to force-dry Flex Seal with high heat, like a hair dryer or heat gun, can affect the product’s integrity and lead to cracks or poor adhesion.
While these tips can help speed things up, allowing adequate cure time ensures a stronger, longer-lasting seal. Flex Seal Spray works hard to protect your surface. Giving it time to cure fully is the best way to get maximum durability and waterproofing. Download our free Flex Seal Product Reference Guide for more info and tips.
