Do you have a website? Whats the point of giving such as small amount of information.

Hi
New to this forum, from Australia
Anybody has information as to why Magnesium Oxychloride is necessary for the fibre reinforced MgO board? Does it enhance adherence of the components of the board?
We provide technology for flash calcining - converting MgCO3 to highly activated MgO. We found we could form high strength MgO blocks, lab scale, without any salts.

cheers
Needles

I live in Ohio and I have, use, and sell MGO Boards. I have a constant supply and can get them shipped anywhere you need.  A lot of people are using them to re-build barns. They need a fire-proof building and these boards are their answer. If anyone is interested please don't hesitate to email me!

Hi

This is Needles from Australia.
I find it pretty amazing that yours was the only house standing after Ivan. Could you share a photo, if one evailable, showing your house standing amidst all the others that were reduced to a rubble?

cheers
Needles

This will be a bit off topic. But you asked !
Phase I of my house (guesthouse) survived Ivan fabulously but I had wood interior walls, no MgO. That came in Phase II built after Ivan. http://www.concretecottage.com

This web page below shows it all. Top of the page is my home and bottom of page is NASA photos that show my neighbors demolished homes:
http://www.scrapbookscrapbook.com/DAC-ART/hurricane-ivan-1.html

Good Katrina photos and text here:
http://www.scrapbookscrapbook.com/DAC-ART/hurricane-katrina.html

Hope these links work. Not sure if http links work in posts. If not, I'll re-post below and complete html tags

OK, trying to make links here:

My intact home (guest house) at top of pages and demolished neighbors homes photos on lower part of page (Nasa photos).

Hurricane Ivan Photos
Katrina Photos

Phase II Main House built w/ MgO interior walls and ceilings:
Concrete Cottage

CC; can't seem to find your cottage on the aerial photos, is it in there or am I just missing it? The aerial photos do not match up with your "after" shoreline photos either, the aerials show a long dock that is not shown in your shore photos. They photos are taken at 2 different locations. The homes across the lagoon look to be on a barrier island, most likely a "V" zone? Your home appears to be at a much lower base flood elevation possibly an "A" zone ?

The NASA aerial photos only went down to a certain point on Little Lagoon, as the beach front was the primary focus of the photography it seems. The aerial photos I found are about a mile or two down the road from me. Little Lagoon is about 8 miles long. Not every house on LL was destroyed. Some just had damage. Some, like my friend Mary Louise who lives in an old CMU cottage on a slab had all the windows blown out as the house filled with water but the walls remained. The roof stayed on. She installed new windows and doors, new appliances and dried her remaining wood furniture out in the sun and moved back in. (I don't know what she did about the wiring.) The homes across the lagoon are Gulf front on West Beach which is basically like a barrier island except it is connected to the land at both ends and merges back into the Ft. Morgan Peninsula where Little Lagoon ends.

We'll see if this link works Map of Little Lagoon

Concrete Cottage; thanks for the clarification

MgO boards have many positive attributes. All boards are made in China but only a couple of companies in North America have had extensive testing done to meet codes. There are many sub-standard products so be careful who you buy from. Magnum Building Products and Dragon Board are the two best products available in the USA.

Have you seen their extensive testing..if you have you are the only one..neither one even has a quaility control manual..with out that ..the limited testing they have done is obsolete..thay are brokers of board middle men for several manfacturers in China.. with no quality control our stamps on the boards to trace what batch they came from if you have a problem... g2tech that was a bold statement from a guy who has probaly never used either

 

Test item	Technical requirement			Test results	Results
Density (t/m3)				1.05	Qualified
Bending strength(Mpa)	≥10			16.0	Qualified
Impact strength (KJ/m2)	≥2.5			10	Qualified
Moisture absorption	No moisture			No moisture	Qualified
Water content  (%)	≤8			3.7	Qualified
Contraction rate when heated  (%)	≤0.3			0.1	Qualified
Expansion when put into water  (%)	≤0.6			0.23	Qualified
Crisp coefficient	≥0.7			1.3	Qualified
Warp when heated (‰)	≤3			0.12	Qualified
Put out of nails	e<6	6	e >10	35	Qualified
	≥25	≥20	≥15

Crisp coefficient? Put out of nails?

Who established the Technical Requirements for this material?

MgO board is a little crispy, buy not as crispy as cement board and not as compliant as OSB. With nails and screws it acts the same, in-between cement board and wood.

Now that we have hung a bunch as drywall I would say the worst thing is that on 20ga steel studs fine thread drywall screws strip the studs before they recess into the tough surface of the MgO board. Not a problem on wood.

The most surprising thing is we can walk on it in the attic, 10mm MgO board fastened to wood trusses 24" oc.

Hi,
i m new to forum...
i gone through specs and all about MgO boards...
i have a simple query.. Can i use the MgO boards for making various kind of House hold furniture like say Ward Robe, Bedroom Set, Sofa Set, Dining Table, cup-robe...

if i can use for this purposes then i have very huge requirement...
also let me know the other detailed usage of MgO boards..

Thanks in advance..

Regards,
Bison Boards.

Hi,
i m new to forum...
i gone through specs and all about MgO boards...
i have a simple query.. Can i use the MgO boards for making various kind of House hold furniture like say Ward Robe, Bedroom Set, Sofa Set, Dining Table, cup-robe...

if i can use for this purposes then i have very huge requirement...
also let me know the other detailed usage of MgO boards..

Thanks in advance..

Regards,
Bison Boards.

Probably but why would you want to. Furniture is about the only thing wood is good for, and wood does it better.

What is Bison Boards?

I've never seen discussion of simple tests that a builder can do to verify that MgO, drywall, etc are OK, even if they supposedly have all tests done. For example, grind it up and mix with some steel wool and copper (just made that up, don't know if it would work). Or put it in a sealed container with a canary. Same for glues - if something is labeled zero VOC, non-toxic, what is a quick and dirty test to verify that? IMO, avoiding toxic substances is a better plan than "crank up the HRV".

Great thread.

I have been using a brand of MGO here in Costa Rica for years now.
8 months ago they pulled it off the market with no Explanations.
I asked with no solid answers.

I am still able to buy it here.
They have tens of thousands of sheets sitting in a warehouse up the road from me.

 

Problems I am now encountering after 3 years.
Humidity and Aluminum are a bad combo.
The Alum window frames and wide flange rivets are producing a semi clear slime.
Ya it is what you guys are talking about.

Had an Eng tell me last week to isolate all the alum window frames from the MGO.
They make a foam core wall and cover this with MGO.
They are having problems with the Alum windows sweating goo.

Now my problem is the thousands of rivets we used to fasten it to the shipping container homes we have made.
Just came out today with our oldest home here.
The owner sent me photos and asked whats up?

Any tips would be great.
This cabin is made of 2 20 seacans and has about 45 sheets of MGO in it.
walls and ceiling.
Lots of rivets in this thing

I really like this product and we find it is a versatile product.
Cement board is next best down here.

Seems there are problems though with this product and I might have some hostile clients calling me soon if I can't come up with a solution.

Ie dehumidifier 7/24
Replace rivets and have backing or look for a plastic fastener?

I am stumped.
Any help appreciated.

New member and green a build as I can get.
Steve
San Jose Costa Rica