Questions and Answers for Rapid Set 25 lbs. High-Performance, Fast-Setting Mortar Mix

A:  This product can be use to fill voids on replacement windows up to 6" in thickness.

A:  I have found over the years that people tend to mix partial quantities of Redi mixed products, They tend to work best when you mix a complete bag at a time as the contents are pre-measured for the best possible results. Use a bag at atime.

A:  This happens if you use too much water in the mix, or if you retemper the mix.

A:  We do have a waterproofing mortar that is darker in pigment.

A:  We used the Rapid Set Mortar Mix for concrete counter tops. Doing a little research it looks like you will need a Refractory Mortar-Dry Mix. Check Youtube. Here is one link - https://www.youtube.com/watch?v=CFDr6jZsbkk

A:  This material can be used up to a 350 degree exposure. If the temp exceeds that you will want to use a refractory cement.

A:  You can use this product to install a limestone step. It reaches 2500 psi in one hour and has an exceptional bond.

A:  I say yes. I used it to fill in small, medium, and large gaps between roof tiles and was able to smooth it in to most any configuration. Worked with small batches since it begins to set pretty quick.

A:  Yes it can if there is at least 1/8" depth. Deeper would be better. Grind out the imperfections and fill with the mix quickly.

A:  I had a large section missing and tons of cracked or large areas of stucco missing- I took down everything loose and used this to recover the entire are ( thinly in areas that were sound) and it came out great. Limited working time so I used no more than half a 5 gallon bucket at a time. Def would recommend- 2 years later still looks great with no cracking 

A:  Very good material I highly recommend it works really really well God bless stay safe have a wonderful weekend

A:  Hello, Our mortar mix or cement all material can be coated over cement board to coat seams. Make sure and wet the area down and then apply our product. Thanks

A:  If you keep it in a dry space it will last a very long time since it is a dry product it will last 1 to 5 years

A:  I would easily guess a very long time if it’s sealed up and kept inside the house away from the elements. Hope this helps.

A:  As long as it is not hard it is good to go

A:  Thank you for your recent inquiry with The Home Depot regarding your concrete project. The materials used may be having a Efflorescence phenomenon common with concrete. To fix the problem at this point, clean the surface with a mild acid or efflorescence remover (some manufacturers make special efflorescence cleaners) followed by sealing. We appreciate your business and look forward to serving you in the future.

A:  Use muriatic acid.