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You are here: Home / Videos / Drywall differences, green and blue board sheetrock for plastering

Drywall differences, green and blue board sheetrock for plastering

February 28, 2014 By Stucco Plastering 68 Comments

Drywall differences, green and blue board sheetrock for interior plastering.

Many folks refer to sheetrock, as drywall, plaster board, gypsum board it all basically the same stuff just a different name. The green and purple board are more fro moisture and mold resistances, the blue board are specifically engineered for veneer plaster such as a imperial base coat plaster which don’t need glueing or bonding agents.
I apply a bonding agent over all boards except for the blue board.

In this video I give some basic tips on the many gypsum boards I have encountered in the last 30 years, This is my opinion, you folks of course use whatever board and mud you prefer.

As far as most’staping muds are concerned, I rarely use taping mud’s as they are usually a typical three day systems. you apply the first coat, wait 24 hours, then repeat two more times, then you sand the walls, which makes a big mess, plasters and or compounds are much faster but takes more experience with no sanding.

But on the other hand, taping mud is great for home owner doing a complete home or even just a room where you will be working for more than a day anyway and wish to get it done as cost effectively as possible.

There and many choices for quick touch ups, what I explain here is just the tip of the iceberg.

In many of my video’s I use drywall compounds as they dry within minutes and you can apply your next coat giving the ability to same day base coat and finish.

Please also see our web site at http://www.StuccoPlastering.com
Kirk Giordano Plastering Inc.
Thanks for watching and have a great day!
Kirk & Jason Giordano’s DIY plastering network

Drywall differences, green and blue board sheetrock for interior plastering

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Comments

  1. Dusty G. says

    February 28, 2014 at 7:11 am

    they sell a kit if the tub doesn't have a flange. Also what the heck is up with the pipe for the toilet!!!?  Some one want to look down on the world when they are on their thrown???  🙂

    Reply
    • Kirk Giordano plastering Inc. says

      February 28, 2014 at 4:03 pm

      Hey Dusty dude, I don't get called many times to add the wall barriers and waterproofing but I have done it many times.
       As far as the tall pipe Jason and I thought it was so high so we wouldn't get any idea of using it, I'm pretty tall but there was even a cap on it so we had to walk all the way downstairs.!
       Cheers.
       kirk and family

      Reply
  2. Peter Agostini jdcap26 tips an repairs and hobbies says

    February 28, 2014 at 12:37 pm

    Is that blue  board made out of  mesh  an concrete ? Put  some in here in shower an   tile over it. Also where the tub meets the wall " grout line " I find it turns a lot  an  gets  dirty or shrinks  always have to replace it  , resolution? TY  TU  cheers 

    Reply
    • Kirk Giordano plastering Inc. says

      February 28, 2014 at 4:08 pm

      Peter old pal, na, this is just sheetrock with a layer on it designed to accept a certain type of mud.
       As far as continuous caulking a tub, if I knew a way I would tell you. If you tile, thats maintenance free, but if you used a caulking every 5 to 8  years or so you may have to re-caulk it, hitting any moldy caulking with bleach usually gets rid of the mold for awhile though.
       I the caulking realbeat up remove and replace it, happens to the best of us.
       cheers brother!
       kirk giordano plastering

      Reply
    • Peter Agostini jdcap26 tips an repairs and hobbies says

      March 1, 2014 at 1:16 am

      Bingo  Bro bleach works , forever replacing  caulking   for  sure though . cheers Peter 

      Reply
  3. cargogh says

    February 28, 2014 at 2:46 pm

    Thanks.  And also thanks for not having to skim past graphics, pics and loud music of intro.  

    Reply
  4. Gee Dubb says

    February 28, 2014 at 4:02 pm

    Thanks Kirk, I had a project and did a shower demo due to a sloppy job by the sub. I used a product called "red guard (or redgard?) as a sealer and barrier. It's a thick, pink vinyl paint on material that turns red when it dries. It's very durable and also approved for shower pans. Not sure if you've ever used it but check it out someday. It's about 50 bucks a gallon but goes a long ways.

    Reply
    • Kirk Giordano plastering Inc. says

      February 28, 2014 at 4:24 pm

      Howdy Gee dubb, I have heard of this product, but haven't tried it.
       Happy to hear it worked well for you.
       My method is to drywall or plywood apply a membrane say something at least 50 mil thickness then attach 3.4 metal mesh, slam a cementitious base coat on and then tile as usual.
      If you add the plaster by hand it must be true and plump or the tile will be difficult to set proper on a wavy base coat. I usually tell guys unless you're good with stucco use the membrane than wonder board as the wall comes out plumb for setting the tile.
       Cheers.
       kirk and family

      Reply
    • Gee Dubb says

      February 28, 2014 at 5:24 pm

      agree, nothing worse than a wavy and or crumbly wall. The old saying "you get what you pay for". My ol dad taught me the way to do them, the right way. Take care and I hope the rains don't hit you too hard. (probably some more job security though!)

      Reply
  5. Hackfuey says

    February 28, 2014 at 4:10 pm

    2 words for any plaster connoisseur, Plaster Weld and Bon Tool! lol thanks for the great vid Kirk look forward to the next one!

    Reply
  6. FUNNYBIRDS says

    February 28, 2014 at 7:00 pm

    that blueboard is supposed to be impregnated with glue. and the the paper has little grooves in it. thats what i was told a while back . is that california ONE-Kote ? we used to call that " white gold" cause we madecso much money with it. try waiting fir it to just about set up. and hit it with a worn out red float, one thats still flat. spray a lil water on it to bring up the fat if need be. then hit itvwith that traul. it should knock down lsmooth as a babys behind. love the vids

    Reply
    • Kirk Giordano plastering Inc. says

      March 1, 2014 at 8:06 pm

      Hey chaddy dude, what I use was a compound on this project for a one day operation. If I was to use say structo-lite with a veneer finish I would have had to charge him for two trips. He was happy paying a few hundred bucks for the one time same day stuff.
      Best wishes and thanks for sharing.
       Kirk, Jason and family

      Reply
  7. FUNNYBIRDS says

    February 28, 2014 at 7:04 pm

    And i didnt mean california White-Kote. because thats just the top fr Structolite.

    Reply
  8. Chris Butcher says

    February 28, 2014 at 7:07 pm

    Blue in the uk is soundblock

    Reply
    • Kirk Giordano plastering Inc. says

      March 1, 2014 at 8:12 pm

      Hi Chris Butcher, good tip brother, it's hard to keep up with all these new and so called improved products.
       Cheers!
       Kirk Giordano

      Reply
  9. Emily Martin says

    March 2, 2014 at 9:54 pm

    hey kirk& family if its possible could you show me where i could buy a 20×5 pool trowel, i want to try the same as yours but when i look for pool trowels there all completely round, i need it shaped like your, thanks 😀

    Reply
    • Kirk Giordano plastering Inc. says

      March 9, 2014 at 3:49 am

      Hi Emily, I bouth that one online at BonTools.com 
      but it's so big it does take a lot of practice, try perhaps at most the 16X5.
       Best wishes.
       kirk giordano plastering

      Reply
  10. FUNNYBIRDS says

    March 3, 2014 at 8:34 am

    Yeah. I thought it was " California one-kote " you were spreading. Probably was, just a different name. Highland made something like that too. It was basically casting plaster, with lime and very fine silica. And probably some random binders. You know how it is. Different areas carry different brands of the same stuff. I love when I see customers mix themselves a lil fix-all and try to patch with it, hahaha. You need a dam grinder to sand that. I'd love to see you repair a patch in a santamonica finish wall. My customers are so picky. Everything I has to be perfect. People are a trip man. When your trying to get paid, you get very clever, lol. And good.

    Reply
    • Kirk Giordano plastering Inc. says

      March 9, 2014 at 3:47 am

      Hey chaddy dude, I hear you, lots of similar materials with different names.
       Cheers! 
      Kirk and family
       

      Reply
  11. Jesse Wright says

    December 1, 2014 at 3:52 pm

    Great video!  I learned something.

    Reply
    • Kirk Giordano plastering Inc. says

      December 1, 2014 at 5:02 pm

      Morning Wren Wright, thank you, that's what is all about sharing the knowledge.
       Best wishes,
      Kirk and Jason's DIY plastering tips

      Reply
  12. kittyboo2121 says

    April 8, 2015 at 3:02 pm

    Thanks!

    Reply
    • Kirk Giordano plastering Inc. says

      April 10, 2015 at 3:06 am

      @kittyboo2121 No worries, best wishes and have a good evening. Kirk giordano

      Reply
  13. benzinc says

    June 30, 2015 at 1:28 am

    Hi Kirk! Great video! It's fun watching you and listening to you. Very entertaining actually.

    Unfortunately, I used 5/8 green board moisture resistant for my shower wall, and tiles have been installed.  This is before I've learned from your video.  Now, what can I do to prolong or if i can prevent water damage?  Any suggestion?

    Reply
    • Kirk Giordano plastering Inc. says

      June 30, 2015 at 3:58 am

      @benzinc Hey Benzinc dude, thank you,
      when you installed the tile over any sheetrock no mater the color or depth, a waterproof membrane must be placed to cover the sheetrock with a cement plaster over some type of wire, then the tile is attached to this base coat.
      Did you mean you applied tile directly over sheetrock?
      If so this wont last too long, by the time it fails you will more than likely have wood rot under the sheetrock, sorry brother.
      If you did attach tiles to sheetrock, you can apply a waterproof type of liquid to the grout which will prolong the inevitable
      Best wishes,
      kirk giordano Plastering

      Reply
  14. David Norris says

    July 27, 2015 at 5:16 pm

    Hi Kirk & Jason,
    I have two questions about Plaster-Weld. 

    First, the directions on the Plaster-Weld can state to apply plaster while tacky or after a week to ten days.  I am a big believer in following the instructions of the people who develop and manufacture a product, but waiting a week to ten days seemed out of wack with the time between coats in your videos.  What say you?

    Second, none of my local big box stores sell any kind of plaster bonding agent, but they all carry at least three different types of plaster.  I asked the contractor working at the Pro desk about it and he said that Structo-Lite, plaster, and veneer plaster now include a bonding agent, so applying a separate bonding agent is unnecessary.  What is going on?

    Thanks!

    Reply
    • Kirk Giordano plastering Inc. says

      July 27, 2015 at 7:45 pm

      @David Norris Hello David, excellent question,
      Weld-Crete or Plaster weld both made by Larsons is a professional grade bonding agent, one of it's functions is that you can apply this bonding agent over almost any substrate including glass and the plaster Will adhere.
      A person should only use it once when going over a surface which is sealed or if your not sure, apply, (paint or roll it on) as added protectiion against your new plaster falling off.
      I always use a bonding agent when applying plaster even with some products that say it's not necessary, myself.
      As far as stricto-lite, this is product most folks don't use a bonding agent on, but old Kirk uses a bonding agent prior even for this product.
      You will more than likely find Quikrete bonding agent product at the Home Depot's or Lowe's, Quickrete wrote the book on cement plasters, stucco's and concrete not to mention bonding agents.
      Best wishes,
      kirk giordano Plastering

      Reply
    • David Norris says

      August 25, 2015 at 4:35 am

      @Kirk & Jason Giordanos DIY plastering and stucco tips Thanks a lot for your expertise. Do I have to wait a week to ten days after application of the Plaster-Weld before I can plaster once the Plaster-Weld dries?

      Reply
    • Kirk Giordano plastering Inc. says

      August 26, 2015 at 6:47 pm

      Hi David, I generally wait until it dries, however the can does say you can wait up to days days if necessary.
       Best wishes, 
       Kirk Giordano Plastering

      Reply
    • David Norris says

      August 26, 2015 at 6:50 pm

      Thanks for the help Kirk. Have you posted an update on your harvoni treatment?

      Reply
    • Kirk Giordano plastering Inc. says

      August 27, 2015 at 6:39 pm

      Hi David, I usually wait until the bonding agent is dry as it only about one half hour, the ten days is a convenient, meaning if you apply you still have up to ten days to plaster and the bonding agent will still hold.
      As far as bonding agents in the materials most plastering contractor don't use the bonding agents at least those I have talked to.
       This is their choice, as a rule I always do as it only takes minutes to apply and I sleep better.
       Try looking for quickcrete bonding agent it's more popular than weld crete.
       weld-create is sold at the professional plastering yards and some specialty or quality hardware stores.
       Best wishes, 
       Kirk Giordano Plastering

      Reply
  15. Sylvia Sanchez says

    February 22, 2016 at 5:13 pm

    Sorry I forgot to tell you that my walls are already sheetrock and painted i wanted to Veneer Diamond Plaster my walls would I need to use the sand product that you used on your video before using the finish or can look use the bonding agent or can i get around just by using the veneer diamond Finish only

    Reply
    • Kirk Giordano plastering Inc. says

      February 22, 2016 at 8:32 pm

      Hi sylvia sanchez, I recommend a bonding agent first weather it's painted or not, you can just apply the finish coat, but I prefer to first apply a base coat myself, as it has sand for strength and when dry the finish coat has a better chance of not blistering or separating from the sheetrock as the trowel action can separate it if you over trowel.
      Cheers,
      kirk giordano

      Reply
  16. Sylvia Sanchez says

    February 22, 2016 at 9:27 pm

    Thank you for your help love you work may the good Lord continue to bless you with your work

    Reply
    • Kirk Giordano plastering Inc. says

      February 22, 2016 at 9:53 pm

      Hi sylvia sanchez, no worries,
      kirk giordano

      Reply
  17. Neil says

    March 3, 2016 at 11:59 pm

    Good video thank you.

    Reply
    • Kirk Giordano plastering Inc. says

      March 4, 2016 at 2:08 am

      Evening Neil Ewan, your welcome,
      Cheers,
      kirk giordano plastering

      Reply
  18. Bernie LaFrance says

    August 26, 2016 at 11:43 pm

    Kirk,
    Thank you for this and all your videos. I think you saved me from a big error. My 1910 home has what was locally called horse hair plaster. As I understand a mix of clay and slaked lime, horse and or pig hair added for strength and a thin plaster veneer finish. Its nearly all failing.
    Two rooms so far I striped to the studs, rewired, insulated and installed drywall. I worked hard to keep the original base board trim in place – ¾” x 8” shellac finished fine grain Douglas fir with not one knot anywhere, beautiful. Window and door trim I tediously removed and labeled.
    The issue is in many places the door and window frame have up to ¾” offset to the stud so I went with 5/8” green board drywall with the intent of building up 1/8” of drywall compound…
    Well forget that – too soft, shrinkage, slow dry and sanding, I hate sanding. So to review with your expert opinion, I intend to:
    – Mesh tape joints with staples
    – Coat with bonding agent
    – Apply 1/16” of imperial base coat
    – Apply diamond veneer finish Thanks in advance for your input. I wish you and yours health and happiness!
    Bernie

    Reply
    • Kirk Giordano plastering Inc. says

      August 27, 2016 at 4:12 am

      Evening Uncle B man dude, this is a really strong choice, you want even stronger like hospitals and or schools apply an imperial finish instead of diamond.
      cheers,
      kirk giordano rendering

      Reply
  19. Phil Scar says

    October 3, 2016 at 4:00 pm

    kirk, i have a 3 piece alcove tub that im installing. i am going to butt the sheet rock to the tub / surrounding flange and not go over the flange. i was wondering what do you recommend filling the void with to make a clean finish, plaster instead of joint compound or is there another trick to doing this? thanks

    Reply
    • Kirk Giordano plastering Inc. says

      October 4, 2016 at 12:34 am

      Howdy Phil, if it were me I would use this system below in the video,
      https://youtu.be/DHT9SQJhev8
      cheers,
      Kirk and Jason’s sand and cement rendering videos

      Reply
    • Phil Scar says

      October 4, 2016 at 1:05 am

      Thanks kirk. ill see if my local hardware and or home centers carry the diamond veneer.

      Reply
    • Kirk Giordano plastering Inc. says

      October 4, 2016 at 3:28 am

      Evening Phil, there are other brans of veneer that are just as good too.
      best wishes,
      Kirk and Jason's rendering videos

      Reply
  20. austin jay says

    February 21, 2017 at 12:17 am

    like the stucco weld do you add water and water it down or do you apply it to its full thickness since it's interior

    Reply
    • Kirk Giordano plastering Inc. says

      February 21, 2017 at 1:26 am

      Howdy Austin, I use full strength plaster weld myself for interiors,
      As a rule I don't suggest anyone anywhere dilute any of the bonding agents sold.
      Best wishes with your projects,
      Kirk giordano plastering on small repairs

      Reply
    • austin jay says

      February 21, 2017 at 1:29 am

      Kirk Giordano plastering Inc. thanks I appreciate the quick response one more quick question so for the exterior bonding agents going over existing stucco we shouldn't dilute the agent, I thought if you didnot it would spider Crack I'm probably confusing it with something else . thanks kirk!

      Reply
    • Kirk Giordano plastering Inc. says

      February 21, 2017 at 1:38 am

      Howdy Austin, my gut feeling was that you may have watched that video.
      I dilute only when applying a color finish in certain circumstances, my 30 years plus time in tells me when to dilute, the average person won't have my understanding, so as not to get yelled at blamed or criticized for telling folks what to do, I was showing in that video what "I" do, each person has to do whats right for themselves or basically make their own decisions.
      cheers brother,
      kirk giordano plastering

      Reply
    • austin jay says

      February 21, 2017 at 1:39 am

      Kirk Giordano plastering Inc. gotcha man! thanks keep making these awesome videos!

      Reply
    • Kirk Giordano plastering Inc. says

      February 21, 2017 at 1:44 am

      Howdy Austin, no worries,
      kirk giordano

      Reply
  21. brad projects says

    January 7, 2018 at 4:15 am

    Don't those joints crack between the sheetrock and plaster, without tape?

    Reply
    • Kirk Giordano plastering Inc. says

      January 7, 2018 at 6:27 pm

      Good Morning Brad, no, not with this procedure
      Live long and plaster
      Mastering Plastering by team Giordano

      Reply
  22. Nina S says

    March 10, 2018 at 3:17 am

    Will using blue board coated in plaster be as good as plaster over lathe? I have a century home I need to redo a couple walls in which I have gutted down to lathe. Should I remove lathe and use blue board as a base? Or just do it the old fashioned way using the lathe?

    Reply
    • Kirk Giordano plastering Inc. says

      March 10, 2018 at 5:36 am

      Howdy Nina, yes Blue, purple and green are designed to be moisture, mold, and mildew resistant.
      While just as good as the old cedar wood lath.
      Here's a great site that will explain in minutes, https://www.thebalance.com/types-of-drywall-845079
      Live long and plaster
      Sharing plastering information, as the world can use more teachers.

      Reply
    • N C says

      August 29, 2018 at 3:12 pm

      Thx for the link post had a lot of good info in general but really didn't detail the differences between green and blue board . And keep up the good work.

      BTW Dont take this the wrong way but I think u could have ADD tc…

      Reply
  23. Sal Argentino says

    October 3, 2018 at 10:57 pm

    Why do you weld-bond Blue-board?

    Reply
    • Kirk Giordano plastering Inc. says

      October 11, 2018 at 1:03 pm

      Good morning Sal, although this board did not require a bonding agent other areas did, plus applying a bonding anent helps adhere the plaster to surfaces which may have dust from sanding that I may not be aware of, and is a really quick precautionary measure that allows me to sleep at night knowing what I applied will stay adheared.
      Best wishes,
      Sound Plastering tips from your favorite stucco geeks

      Reply
  24. Trogdor Burninator says

    October 11, 2018 at 12:02 pm

    Are the colors in this video off? It looks more like purple board, which is National Gypsum's mold-resistant drywall 'Gold-Bond XP PURPLE', similar to US Gypsum's 'Sheetrock Mold Tough' green board; The plaster base with the special absorbent paper is sold under US Gypsum's Imperial brand, and by National Gypsum as their 'Gold-Bond Kal-Kore' line.

    Reply
    • Kirk Giordano plastering Inc. says

      October 11, 2018 at 12:55 pm

      Good morning Trogdor, yes the colors are true, indeed that was purple sheetrock.
      Best wishes,
      Sound Plastering tips from your favorite stucco geeks

      Reply
    • Derek C says

      April 1, 2020 at 1:34 am

      So why were you calling it blue board in your video did you forget I'd love to see your plaster work under a light what are you charging for a new house 200 12 ft sheets blue board and plaster must be 50 dollars a square ft judging how slow you coat a 4×4 patch

      Reply
  25. Daniel Ivanov says

    January 16, 2019 at 6:36 pm

    I like greenboard for all ceilings because it doesn't stain as easily if there is ever water leaking from a loose shingle on the roof. I've never used blueboard anywhere. Then again most modern houses don;t call for veneers.

    Reply
    • Kirk Giordano plastering Inc. says

      July 19, 2019 at 6:07 am

      Good evening Daniel, it is sort of rare to call for the blue board unless some architect wants to plaster his own home.
                              Peace, love, and happiness to all 
                   Bringing Plastering tips to the world, via YouTube Video

      Reply
  26. Fred Nowicki says

    July 18, 2019 at 4:08 pm

    Kirk ,you and your crew are the very best ! Thank you for sharing your knowledge.

    Reply
    • Kirk Giordano plastering Inc. says

      July 19, 2019 at 6:06 am

      Good evening Fred, thank you.                        Peace, love, and happiness to all              Bringing Plastering tips to the world, via YouTube Video

      Reply
  27. Kathleen Morcom says

    November 20, 2019 at 10:26 pm

    Can you remodel a bathroom without sheet rocking the walls

    Reply
  28. pbee73 says

    March 16, 2020 at 5:32 pm

    I used cement wonder boards in my tub and shower areas, then used this brush on gel then tiled!

    Reply
  29. Nathan says

    April 19, 2020 at 2:52 am

    All of my walls are plaster veneer. Im moving some walls and have searched everywhere for blueboard but it isn't available in my area. I'm going to use regular drywall and a bonding agent. Thanks for the info!

    Reply
    • BIGSILVER RIZLA says

      December 10, 2020 at 12:39 pm

      Gypsum plastererboard is designed to bond with gypsum plaster at a molecular level theres no need for a bonding agent unless its old board and you need to kill the suction

      Reply
  30. pelley 4560 says

    October 19, 2020 at 10:42 pm

    this guy sounds a lot like Matthew Mcconaughey

    Reply

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