I don’t see why not. Hardiboard has even more texture than sheetrock for mud adhesion and at least as good of moisture absorption, so mud should adhere quite well. Certainly the flex of Hardiboard is less than sheetrock, so there should be no issues with flexing causing cracking of dried mud.
Can you put drywall mud on Hardie board?
When using drywall compound over cement board, it is recommended, but not required, to use a faster setting-type joint compound (45 or 90 min), than typical joint compound.
What type of mud do you use on Hardie board?
The correct way to “mud the joints” is going to be to use tile thinset and a fiberglass tape made for cement board. It’s similar to the sticky fiberglass tape made for drywall, but its thicker and more abrasion resistant since the thinset has sand in it and can be vary abrasive.
Can you use joint compound on backer board?
Things You’ll Need
Durock Cement Boards are a type of drywall reinforced with cement for a harder surface. This type of wall material can be finished just like ordinary drywall, using joint tape and joint compound.
Will joint compound adhere to cement board?
Joint compound and fiberglass mesh tape are the best products to use when sealing the seams where cement board and drywall meet. These seams are usually at the edge of a shower or bathtub area that is exposed to water.
What do you use to fill joints in cement board?
Quote from the video:
Quote from Youtube video: One of these corner trials it works very well to reinforce the joints perma based recommends using their 2-inch perma base mesh tape.
Can I skim coat cement board?
Quote from the video:
Quote from Youtube video: As far as the hock goes. You can make one of these or the plywood I've done that before in a pinch just kind of a square piece of plywood put a handle on the bottom and I'll do that do the same job.
How do you seal Hardie board joints?
Quote from the video:
Quote from Youtube video: This area right here what you wanna do is you want to take some of the thin set mortar you want to just put it on the teeth and then sweep it off so that you get a nice thin layer on the teeth.
Can you mud and paint Hardie backer board?
If painting, apply a drywall primer suitable for high-moisture areas, as recommended by the paint manufacturer and paint HardieBacker board as you would drywall. If wallpapering, prime surface of HardieBacker board with a primer suitable for high-moisture areas as recommended by the wallpaper manufacturer.
What kind of Thinset do you use for Hardibacker?
Latex or acrylic modified thinset (complying with ANSI A118. 4). Dry-set mortar for use between subfloor and cement board only (complying with ANSI A118.
How do you fill cracks in cement board?
Quote from the video:
Quote from Youtube video: And just wipe it through there you want to try to be liberal with it as you as much as you can because you want the caulking to stay in the crack to fill it up okay.
Do you have to mud and tape cement board?
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.
Do you sand thinset on cement board?
Thinset is a mixture of cement, sand and an agent that helps the mixture retain moisture. You apply it between drywall, cement board, a concrete slab or a subfloor and tile.
How do you finish joint between cement board and drywall?
Spread joint compound over the length of the tape with a 6-inch drywall knife. Make the seam just wide enough to cover the entire surface of the tape (generally 3 inches). Get it smooth and flat. Dab additional compound over the screw holes on both the drywall and cement boards, near the seam but not under the tape.
What do you put on durock seams?
For tile backer boards such as Durock, Wonderboard, Hardiebacker, Permabase, and others the seams between the board need to be treated with 2-inch alkali-resistant mesh tape. Then a coat of thinset gets flat troweled over the seam. What this does is tie the two boards together and help prevent flexing.
How do you mud durock seams?
Quote from the video:
Quote from Youtube video: But I want to show you – it's really hard to find the end here so what I do is I just scoot. The top until I see where the seam is there it is right there then I just push it back.
What kind of mortar do you use for durock?
latex-fortified mortar
Apply latex-fortified mortar or Type 1 organic adhesive with a notched trowel. Hold trowel at an angle to maintain uniform thickness.
