From what I have read, the premixed thinset does not dry out to form a good adhesive bond when applied over/under a non-permeable membrane like Redguard or the Kerdi-band products. The dry mix (where you add the water on-site) does.Keeping this in view, will Thinset stick to RedGard?
You''ll be fine with thinset over Redguard on walls. It's recommended for waterproofing niches, shelves, and entire shower walls when tar paper or poly are not used as a vapor barrier behind the CBU.
Likewise, how long do you let Thinset dry before applying RedGard? Let this first coat of RedGard dry until the panels appear red in color. This took about 1 to 1.5 hours. Drying time depends mostly on temperature & humidity levels and the surface will appear pink until the the RedGard has completely dried.
Correspondingly, what kind of Thinset do I use over redguard?
Moreover, the Flexbond modified thinset (sold at HD, for example) specifically lists redgard as one of the surfaces it can be applied to and therefore, following manufacturer recommendations, a person should be using a modified thinset like flexbond over Redgard.
Is pre mixed Thinset any good?
Thinset tile mortar provides a very strong bond and is resistant to moisture and mold growth. Even though it is heavy to carry home and more expensive than dry mortar mix, it is usually best for DIYers to use premixed mortar for spaces such as small bathrooms, mudrooms, or utility rooms.
Should I use modified or unmodified thinset?
It's important to note that latex-modified thinset can still be used between the membrane and the subfloor because it is not impervious. However, unmodified thinset should be used between the membrane and the tile.Is unmodified thinset waterproof?
All portland based cementious products will allow water to pass through. The latex modified is more resistant due to the latex that is mixed in with the adhesive but that doesn;t make it "waterproof". The latex also allows a bit more flex in the tile and substrate. As Jason described, thinset itself isn't waterproof.Can RedGard be used as a shower pan liner?
redgard is not a code approved method of shower pan lining. use cpe liner with pre slope the mud bed then redgard the mud if you want.What is the difference between modified and unmodified thinset?
Unmodified thinset has been around forever. Unlike unmodified mortar, which consists only of a blend of Portland cement, sand, and water retention agents, modified thinset includes additional retention products, such as latex polymers, which can increase its performance and strength.How many coats of RedGard can I put on?
To meet the requirements of ANSI A118. 12, apply two coats of RedGard at a rate of 50 sq. ft. per gallon each coat.Do you need to use RedGard over cement board?
As long as it's Cement Board & not some crappy "almost" cement board stuff. You really don't need the RedGard, but the more protection the betterso go for it. And yes, you can do the boards beforehand. But, hit the filled seams & screws (your weak points) as soon as a panel is ready to give it some time to setup.Do you need RedGard on cement board?
1. Industry standards require the use of some type of moisture proofing or waterproofing for showers. With typical cement board, that can be as simple as hanging plastic behind the cement board, or applying some type of waterproofing after the board is hung - like Redgard.Do you have to tape cement board before tiling?
2 Answers. The thinset and mesh tape are to strengthen the seams. If you are going to tile over the cement board, you should tape the seams. If you just want to leave the corners untreated that will probably be fine, because that seam won't split the center of a tile.How long does unmodified thinset take to dry?
The humidity, temperature and air flow in a room affect how long it takes to dry, but thinset generally is cured and ready to walk on or grout in 24 to 48 hours.How long does Thinset take to dry on Backerboard?
Vinyl FloorsHowever, after you mount the backer board to the floor you simply have to seal the seams with mortar and wait until the mortar dries. This is normally 12 hours but may be up to 24 hours in some cases. After the mortar is dry the backer board is ready to receive the mortar for the tile.Can you tile over waterproof membrane?
Contrary to popular belief, ceramic tile and grout, by themselves are not waterproof. Water can penetrate through cement-based grout and work its way through the substrate. To prevent water damage, you must install a waterproof membrane just below the tile bonding mortar as close to the tile as possible.Can you texture over redguard?
As long as you use a good primer, you should be OK, though. You can apply thinset over the RedGard and prime and paint over that. Joint compound is reactivated when it absorbs water and can cause problems like mold and blistering or delamination of paint film.Does thinset mortar go bad?
Normal thinsets can go bad from drawing moisture. If sealed in the plastic bags like Mapei's they should last quite a while.What is Red Guard waterproofing?
RedGard Waterproofing and Crack Prevention Membrane is a ready-to-use, liquid formula that creates a seamless waterproof barrier and prevents common cracks from occurring in tile, stone and grout. RedGard is easy to apply and dries quickly.Does Thinset stick to Thinset?
Thinset will adhere to thinset just fine. If all your talking about is 3/16" then thinset is a good solution.Do you have to use mesh tape with RedGard?
Use of the reinforcing mesh with RedGard is mandatory at the drain area if you're using it for a shower receptor. I would very strongly recommend it be used at all joints and changes of plane everywhere a traditional pan liner would have been installed, but that's not a manufacturer's requirement.Do I need to use RedGard over Hardibacker?
Either you use a vapor barrier behind the hardi, or you can use a waterproofing system (like redgard) over the hardi, but you should not do both. As Vic mentioned, hardi isn't waterproof, so no sense in being concerned with the seams. Hardi, while not waterproof will not be affected by water. Water will do it no harm. 
