I've been using Franmar chemicals for over 10 years. The De-hazing chemicals I used before would degrade the screen glue over time so had a short dwell time to try and offset that. I've used both D-Haze and D-Haze Gel and have stopped the glue degradation, making my screens lasts longer. I've left the gel on overnight before without any adverse affects.

Both D-Haze chemicals from Franmar work well in removing or largely reducing haze, which depends on ink color and length of time in the screen. If you reclaim soon after use you will love the effectiveness of these products. Highly recommended.