Will modified thinset stick to RedGard?
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.
What type of thinset can be used with RedGard?
What Thinset do you 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.
Can you tile directly on RedGard?
For tile installations bonding directly to the substrate; strongly recommended to apply at least one full coat of “undiluted” RedGard® to the “dry” primed area and allow to dry completely before tile installation work is to begin. When used as a vapor barrier, apply one full coat (70 sq. ft.
Can I use unmodified thinset on redguard?
Redguard isn’t Ditra, they want you to use a good quality modified thinset over it. As you know, unmodified is recommended over Ditra, even when installing porcelain. But Redguard doesn’t offer anywhere the uncoupling as does Ditra.
Does 100% silicone stick to RedGard?
Caulk that gap with siliconized or latex caulk and then use Redgard over the caulk. Regard will not stick to 100% silicone caulk. You DO NOT want moisture collecting in that crevice and it can if you stuff it with thinset.
Can I use unmodified thinset on plywood?
Use Thinset With a Higher Latex Content Thinset is the wet base that you first trowel on the plywood to make the tile stick. Higher latex content is essential for bonding to plywood. A quality unmodified thinset should be used and mixed with a latex additive.
What is the working time of modified thinset?
24 to 48 Hours You should wait at least 24 hours before grouting the tiles. You may notice that the edges of the thinset or the thinset showing through the grout lines looks dry. Don’t be fooled by this. The thinset under the tiles isn’t receiving as much air as the edges and is therefor not fully cured.
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 better…so 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.
Can you use premixed thinset on shower walls?
Premixed Thin-Set Mortar is not designed for shower floors or underwater areas; rather, use it in intermittent wet conditions such as backsplashes, countertops, and shower walls. You might use thinset as your adhesive if you plan to tile a shower floor or use heavier materials.
What happens if you use modified thinset on Ditra?
In general, we don’t recommend the use of modified thin-set mortar to set tile over the membranes because these mortars must air dry to cure properly. When sandwiched between two impervious layers such as DITRA and porcelain tile, drying takes place very slowly through the open grout joints.
How long do you let thinset dry before applying RedGard?
Set the tile into the thin-set while it is still wet. Once the tile is set, do not touch, move, or walk on the tile for 24 hours to allow the thin-set to cure undisturbed.
Will silicone stick to redguard?
Apply the RedGard SpeedCoat membrane around drain and embed Waterproofing Reinforcing Tape into the membrane, making sure it does not obstruct the drainage weep holes. Membrane will not adhere to silicone when applied on next day.
Why does custom building not recommend unmodified thinset over redgard?
Modified thinset on the other hand has to dry, so between moisture-impervious ditra and the tile the only way to dry is between the joints (modified between the ditra and substrate, since chances are the thinset can dry into it). So, why does Custom Building not recommend unmodified between the redgard and the tile?
Can a flexbond thinset be used over redgard?
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.
Which is thin set over redgard waterproofing?
I have used Versabond from HD and it works great but any modified thinset will work. You don’t need to Redgard the whole shower, just the joints and any niches or seats. Redgard is meant to have thinset applied over it so no prep is needed. I’m assuming that you have constructed the rest of the shower properly.
Can you use tile adhesive over redgard tile?
Yes, since you already have it there just sand it down and apply redgard over it. No, you absolutely CAN NOT use tile adhesive (mastic) over the redgard – it will never fully cure. Use powdered thinset that you mix with water.
