You have to strip the old deck.

You will have to remove all the stain and start over. It is happening due to uneven application. Some brands of stain are prone to this as well.

They do not.

I understand. But I am wondering if the ratings of the brand names also carries over to house stain.

Yes, that is correct. Post some pictures when done if you have time.

Thank so much for your help. We'll probably try the RAD product line this time. We should use the stripper as opposed to the cleaner, correct?

Defy Extreme and the RAD would both work well and will not promote mildew/mold growth. Either would be a very good choice.

Just brightener after sanding will be fine. Use the Defy Stripper first. It will make the sanding easier.

Thanks and I see what you mean now. I remember I applied in direct sun light so that most likely didn't help. I now have this under roof so will be go...

The floor pictures do show that it was over applied and very thick. Defy is not supposed to be shiny and it shows that it dried shiny and filmed on to...

Thanks for the feedback and always impressed on timely response and assistance you provide. Still at a crossroads with this and wanted to provide som...

Try 1-2 pictures at a time. Your files sizes may be too large.