Back to your question, Yes you can use regular joint compound to finish the JOINTS of the surface of the walls covered with blueboard. Attempting to “skimcoat” the surface with joint compound often results in an irregular, uneven and ”softer” surface than if one used skimcoat plaster.

Can you use joint compound on blue board?

Yes you can, but it is meant as a backer for plaster veneer. As a little added info. Green board is used mostly in bathrooms, not blue board. In all of the bathrooms I have seen in homes I worked on, none has ever had anything other than regular mud over the joints.

Will joint compound stick to painted walls?





You use drywall joint compound for almost all drywall repairs. Unfortunately, it doesn’t stick well to gloss or semi-gloss paint. A coat of primer provides the necessary adhesion, and another one before you paint. seals the repair and improves coverage.

What is the difference between green and blue drywall?

Unlike the green board drywall, blue board works great in bathroom areas or places that get in contact with water. It is perfect for wet areas because it has great mold and water resistance qualities. It was not made for tape, mud or paint but it certainly does a good job at minimizing noise and offering low emissions.

What is blue drywall mud?

Approximately 30% lighter than a conventional ready mix, Lite Blue Joint Compound pulls and sands easier and reduces shrinkage by up to 33%. Lite Blue Joint Compound is designed for use in finishing gypsum board joints, spotting fasteners, and finishing corner bead. Advantages. Lightweight.

What’s the difference between drywall and blue board?

Drywall panels are covered with paper that will take paint directly, once they’ve been taped and the joints and fasteners have been covered with compound. Blueboard’s more absorbent paper layer is designed to bond with a veneer plaster coating before it’s painted.

How do you finish Blue drywall?





Quote from the video:
Quote from Youtube video: You put your primer on you have to wait for that to dry. Usually overnight and then you put another coat on and then wait for that to dry. And then you put another coat on and sand all the joints.

How do you apply joint compound to painted walls?

Abrade the existing paint to promote adhesion. Scour the paint with a fine, 280-grit sandpaper, before you apply the drywall mud. Once the paint feels slightly rough to the touch, it will accept the fresh drywall mud.

Do I need to prime drywall before joint compound?

Generally, you don’t need to apply primer before joint compound on painted surfaces. Joint compound adheres well to many textures, so primer isn’t necessary for adhesion. Apply the compound as smoothly as possible using wide drywall knives, which decreases the number of wiping lines and marks you make.

Can you skim coat drywall mud over paint?

Once dry, the wall can be painted, wallpapered and otherwise decorated as normal. While skim coating is often used to repair drywall, this process can also help treated areas that have already been painted. With a few extra steps you can create the right surface for a smooth skim coat.

Do you have to plaster blue board?



When finishing blue board drywall, instead of applying several coats of joint compound to the seams between boards, a quick tape-and-plaster treatment to the joints is applied, and then the entire wall surface is covered with one or two thin (1/8 inch thick) coats of plaster.

Is blue Board water proof?

It’s a type of drywall plaster that can protect against scrapes and dents when used alone. Blue board may also conceal seams or joints between wall panels. It’s not waterproof or water-resistant, so it could potentially be destroyed to do this.

Is blue board and green board the same thing?

While standard drywall is the gray hue you are probably familiar with, some specialty drywall is known by its color, much like blue board. Green board is a term used for mold-resistant drywall that is common in bathrooms and other moisture prone places.

Why is some sheetrock blue?



Blue Board Drywall



Blue board is used for veneer plastering, and the surface paper has special absorption qualities. It has a high water and mold resistance and there are fewer steps involved in veneer plastering.

Can you use blue board in a bathroom?

Blueboard is also popular in bathrooms. It’s not as water-resistant as greenboard, but it dries quickly during application. It’s mostly used as a veneer, and it’s good at fighting off mold. Its edges are square, so it’s easier to install blueboard.

Can you use blue board for shower walls?

It’s designed to withstand the moisture from plaster or tile mortar, which can soak into regular drywall and cause it to soften. If your shower has been framed out in blue board, you can tile right over it, provided it’s solid and flat, with no areas missing or crumbling.

Is Blue board the same as cement sheet?

Concrete sheeting is also known as cement board, blueboard, and fibre cement sheeting or siding. It is made by sandwiching a layer of concrete between a glass fibre mesh. Concrete sheeting once contained asbestos to improve its fireproofing ability.

Is it OK to use regular drywall in bathroom?



Regular drywall cannot. Regular drywall cannot be waterproofed for use in showers or other bathroom walls and ceilings. “Green board” moisture-resistant drywall can be waterproofed for use in shower walls, but it is not as effective as using a true waterproof backing board.