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Not a big price difference.

Posted By chinsunboard on 21 Mar 2016 12:38 AM
we could supply high quality Mgo Board, it is called Magensium sulfate board , it will be no sweating , no beige , when you put the board in the moisture, the board will not change the color, not change to yellow color with water . You could try our samples , if you need .

MGO/MGCL PRODUCTS ARE NON-COMPLIANT FOR INTERIORS MgO/MgCl interior products (used primarily for interior tile underlayment) are governed by the International Code Council – Evaluation Services (ICC-ES) Acceptance Criteria 386 (AC 386). To date, no product made with MgO or MgCl has been tested to AC 386 and, consequently, no ICC-ES report has been issued. And, even if MgO/MgCl backer boards were tested to AC 386, AC 386 does not allow for the product to be installed in wet areas, as defi ned by the IBC. Therefore, currently available MgO/MgCl backer boards are not code approved.

Posted By cmkavala on 21 Mar 2016 08:18 AM

Posted By chinsunboard on 21 Mar 2016 12:38 AM
we could supply high quality Mgo Board, it is called Magensium sulfate board , it will be no sweating , no beige , when you put the board in the moisture, the board will not change the color, not change to yellow color with water . You could try our samples , if you need .

MGO/MGCL PRODUCTS ARE NON-COMPLIANT FOR INTERIORS MgO/MgCl interior products (used primarily for interior tile underlayment) are governed by the International Code Council – Evaluation Services (ICC-ES) Acceptance Criteria 386 (AC 386). To date, no product made with MgO or MgCl has been tested to AC 386 and, consequently, no ICC-ES report has been issued. And, even if MgO/MgCl backer boards were tested to AC 386, AC 386 does not allow for the product to be installed in wet areas, as defi ned by the IBC. Therefore, currently available MgO/MgCl backer boards are not code approved.

Sulfate mgo board is not MGO/MGCL product, there is no MGCL in sulfate mgo board, should be a new product named MGO/MgSO4 product

Properly manufactured MGO Boards will have a moisture level below below 12% and they can be taped and finished similar to drywall. The attached images depict MGO SIPs taped, finished and painted interior and exterior MGO SIP panels. Innova Eco Building System located in Miami Florida supplies accredited MGO Board and product approved MGO SIP panels. We have been manufacturing product approved MGO SIPs for more than five years and have manufactured more than 300 MGO SIP homes to date. Build the Home of the Future Today, with InnovaPanels, Patented MGO SIPs available for your next project. javascript:amaf_insertHTML('');amaf_toggleInline(5661,24560,0); javascript:amaf_insertHTML('');amaf_toggleInline(5662,24560,0);

Most of you are correct on the Chinese made MgO board companies. There is no way I would deal directly with a Chinese manufacturing company of MgO building materials. I've been working with various people/companies and MgO manufacturing plants here in the states for the last several years. I can guarantee I have found the best of the best regarding MgO building systems, SIPS, SIS panels and plain old MgO building wall systems in the US. Any of you are welcome to call me as we are getting ready to kick off a major "Green" Building Initiative here in GA using these above-mentioned products. As a matter of fact, an entire city is about to launch in FL using these amazing, healthy and sustainable materials that are water/mold, bug/termite proof, 2-hour fire rated, hurricane resistant, will save no less than 40-50% in energy costs along with having a 20-year warranty. How would you like to own a home like this? We also have funding available for large Green Building initiatives. Here's to all of our sustainability efforts.

For additional information call Maggie Steck, Alternate Energy Solutions - 678-908-7095 P.S. We are partnered with the DOE and EPA along with all the necessary certifications.

MAGS888: "I've been working with various people/companies and MgO manufacturing plants here in the states for the last several years".

What board manufactures in the US? "working with" In what capacity?

The only MGO board mfg. in the US is Foreverboard, NY, raw light burnt MAG from Premier, all others are manufactured or mined in China. Disregard all efforts to standardize out of control China and pass that cost to US consumers unless it includes comprehensive testing as denoted in the lab test below and constant monitoring which drives cost up to high, or a patent exist. When you shop for any MGO board look for a lab tested patent on the issues with leaching and fastener corrosion as Premier has attached. If you want to risk this product, and there are risk, look for such a test and ask to speak to the chemist that conducted the testing. Verify that chemist degree, how long they have been working with MGO board mfg, proof of successful install in your climate zone, where the raw materials is mined, who spot checks the manufacture. If you read this patent and you don't understand the bulk if it hire someone that can explain or ask the chemist. Anything less is unfounded sales hype! If a mfg was that confident they warranty should reflect that by clearly stating they accept all damages from product defects as in the OP for at least 25 years, including any punitive damages such as builder reputation, rentals, mold/rot, etc, that should not exist in China if you are not there, some in the USA have dropped out of business so deal with someone that has proven success here in the USA for at least 25 yrs.....You should also find paint testing in the report and a list of approved paints, call and ask those mfg if they warranty their products on MGO. There are 1000s of grades and additives, no general rules of thumb like most building designs.

https://www.google.com/patents/US8603237

MGO in the raw has been around for centuries, has excellent properties, when made into a board if not done right can cause major costly issues. Another option is a plaster you hire a reputable chemist to help with. GP Dense Armor PLUS and ThermalCore PCM boards are options.

Building a city in Fl where most China MGO is imported does not guarantee it's success in every US climate zone, don't be fooled, also the DOE and EPA won't pay for damages, read that one carefully, we lack US empirical data, dynamic testing standards.

These are the things that happens often when DIYs get internet/other bad advice or get into things better left to a pro. Now they pay the price.

This statement is not true. There are at least three MGO manufactures with ICC acceptance criteria for their board, we have been using one of them for the past 5 years and also have Florida Product approvals.

I have talked to ForeverBoard and right now, they only manufacture interior MGO board for use as a drywall replacement. They do not have approvals nor are they manufacturing a exterior structural sheathing at this time. The boards we use are exterior rated structural boards that are free from all of the issues described in your comments. The board we use is fully tested here in the USA and product approved. The board we use is also patented and fully insured against defects. We do not know of another MGO manufacturer offering product liability insurance for their products here in the USA. The board we use also is the only board that we have seen to date with a stable 10 - 12% moisture content. The only issue keeping exterior grade structural MGO sheathing from being made in the USA is current market demand. The current demand for MGO board in the USA is not yet at a level to support a major domestic MGO manufacturing facility. Many will argue this, but the real cost associated with setting up an automated first class manufacturing facility that can produce a quality product and meet the needs of the market is more than $20 million. I would guess that there will be more than one domestic MGO manufacturing facility in the USA within the next 3 to five years if not sooner. There are too many groups working hard on this for it not to occur sooner, rather than later.

Who is making US MGO board buying US mined MAG? The MAG is key, lite vs dead. I don't know what you said was not true in my last post I never referred to ICC I don't need to get a permit....it won't assure a good design or product liability. Product warranty insurance? Please post it here so I can comment. I read alot of them, Dragon, Jet, all had ways out in the fine print.

I know big players are getting behind this with big money, let them work the bugs out, homeowners as this OP warned stay away in the meantime don't do these mfgs field and protoype testing. These mfg need to fund there own specs in any climate zones they wish to sell, do some testing at least a full year of weather, different common paints & fasteners....publish test results..We all hate insurance and/or warranted claims don't go there. I have seen NOTHING posted as Premiers patent to begin to prove otherwise. Post it too, I understand them :)

Thank you for highlighting these very real and potential hazards as well as the importance for diligent and independent spot checks. Proper formulation and monitoring is critical. Chloride in traditional MgO is the culprit and if not properly eliminated can cause corrosion of metal fasteners and flashing. In addition, chloride leaching can also cause calcification of the front surface which makes the boards non-permeable thereby trapping moisture inside the wall cavities and creating an environment rich for mold growth. Agreed, a responsible company will address these items. The advantage of a properly formulated magnesium board over gypsum products is the magnesium boards require no protective coating (like fiberglass mat), don’t crumble or weaken when exposed to moisture, are non-combustible and far more durable. Thank you for your post!

You did not answer my question as to what us mfg you are working with and in what capacity. I've been part of mfg qual testing and know the lies well, in multi-million dollar labs developing materials properties. What should come of of them when it occurs is hot box testing, thermal/temp/moisture or simulated climate zone pre- fatigue testing with the board, paints, fasteners, reinforcements, etc, over some standard accelerated life cycle then back calibrated by actual field testing......My guess that will be a costly commercially funded mfg project by those wanting to know that trickles down to residential not the other way around.

There is a whole lot more to the desired properties than leaching, corrosion, portland cement concretes or gypsum binder, lime binder concretes, can do that or whether or not they need a high perm breathable FG scrim mesh.

"non-permeable thereby trapping moisture inside the wall cavities and creating an environment rich for mold growth."

People do this all the time will all kinds products that don't know any better.

What is the moisture content of the board you are trying to paint?

You seem to think MC( Max Moisture Content) is the only property that matters when it comes to a paint binders adhesion. The mechanical property we are referring to is lap shear and tensile strengths and they are measurable by stress/strain gages. The same properties are sometimes published by glue, adhesives, paints, by some mfgs, the better ones. They should be part of the life cyclic testing I referred to above and published. Domestic QA indi verification spot checks s/b part of mfg qualifications. Regardless of MC, not all paint binders are created equal. Mineral silicates for example get stronger as they recure and are best installed wet. Besides all that there are chemical requirements.

In my mind another critical property PI(plastic index) or the difference between the surface of the MAG board and paints needs to be close to same to reduce cracking. Once cracks develops it makes it easier to leach or infiltrate moisture that promotes it.  Other properties would be strength-to weight China mag is lower than premier, and constant density composition.

"non-permeable thereby trapping moisture inside the wall cavities and creating an environment rich for mold growth."

What was being discussed here I don't think you followed is vapor lock a high MC would make worse.

You mag mfgs seem to be trying anything you can to promote MAG when the proper testing and documentations are not available to include a full lab test report or patent as Premier has, along with some hot box testing that simulates different boundary conditions with the specific grade and composition including paints, fasteners, reinforcements. Several material properties should result test prototype builds verify. I can guarantee the funding at residential is not there. Until then be warned as the OP is correct.

I was looking at up coming WUFI add ons and noticed,

Corrosion of metals exposed to concrete, stucco, and other natural, mineral-based building materials

MAG would fall in mineral-based. That should help Moisture Resistant Design Professionals.

https://wufi.de/en/software/wufi-add-ons/

MGO Board that has been manufactured properly with a proper moisture content below 12% can be painted with exterior grade paint. MGO is a wonderful product if you purchase an approved board. Purchasing low cost MGO board from unknown manufactures on Alibaba is asking for problems. A quality 12mm exterior structural grade MGO board with shipping will cost you close to $30 a board for 4 x 8' sheets. Purchase quality board from manufactures with updated testing and quality control reports and you will not have a problem. javascript:amaf_insertHTML('');amaf_toggleInline(5789,24560,0);