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Is it okay to leave the GLASSGUARD™ Miracle Mold Stain Cleaner Gel on for longer than the recommended time?Updated 4 months ago

We don't recommend leaving the GLASSGUARD™ Miracle Mold Stain Cleaner Gel on for longer than 5 hours. It is always best to adhere to the processing time on the instructions. 

If the mould issue is stubborn and not fully resolved with the 3-5 hour application time, then 100% we would recommend a secondary application.

https://glassguard.com/products/mold-stain-cleaner

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