Spraying Aircrete ON Wall Panels 

all I need for that is a ten inch drywall finishing knife and I'd go to war on it ,,, I am a DRYWALL guy lol ,,,, I love this stuff been slinging mud since about 1990

The metal is a good heat conductor, however it is thin, so the cross section of the heat path is small. The outside layer of cement and any inside wall surface covering will help as well.

Sorry guys all the bubbles that come out, there's no way the bubbles can survive in in an environment that violent. I'm not sure but I think the sprayer has a vortex effect and the bubbles that pop.

How would you keep them upright in a strong wind?

JOE FUGALLO HealingIsEasy, That is a texture sprayer, no more than $25 at Harbor Frite! I think his formula for top coating would JOE FUGALLO HealingIsEasy 5 months agobe to first hydrate the wall a bunch then use a little soupy cement/sand/Laytex paint mix. Troweling and/or decorating later would be optional.

Yea, you got the right ideas with re-bar and chicken or aviary netting to free form any shape, carve it fake up rocks different colors (red lime stone or black granite etc) for water fall or fireplace facade. The ideas are endless.

A coating should help durability too. Figure kids and many adults are going to try scraping this interesting thing with a fingernail...

Lung protection, depending on the level of dust, might be good too.

Harry was not using anywhere near the same recipe(s) that Darwin is using, and he was making crumble tests while it was still green. Concrete doesn't begin to have any strength for the first 48 hours, and isn't considered to be cured for 28 days, minimum. It gets harder and stronger each one of those 28 days. Harry apparently started just stumbling around, almost like he disregarded what little existing knowledge there was available. For instance, aircrete is supposed to be a thin slurry that pours like honey, or a little thinner, and early videos show some that's almost the consistency of adobe. He guessed at amounts on so many of the things he tried that you can't really take it as gospel when he showed how easily they crumbled afterwards. Honeydo is also stumbling around, experimenting, because there isn't that much knowledge to be had, but he is starting from a background of working with concrete and doing testing pretty methodically, and repeatable, unlike Harry. Also, any concrete continues to cure for about 45 days or more. The accepted minimum is 28 days and he was testing strength after 24 hours. What could you expect? It's also best to keep poured concrete damp for at least the first 48 hours, which will make it harder and stronger. I don't recall any of his videos where he did anything like that. I appreciate his sharing of all of Harry's trial & error videos, but frankly you shouldn't put too much faith in his test results, because everything in his approach is so haphazard. And that's in addition to the actual bad qualities of properly-done aircrete... if it's going to be strong, it isn't going to be light or have the insulating qualities. If a mix does have those qualities, it isn't strong, as concrete mixes go.

Weslag1 hello and thanks for the detailed response. I did not put too much faith in Harry's attempts but thought to mention him as an example for another tester. I do however very much interested to see a test by homey for his recent aircrete projects, being that he said that in making the big slabs he quadrupled his initial cement mixture. I know that it takes a long while for the concrete to cure and also that 48 hours damping rule, but I think that after 48 hours you should at least not be able to smash by hand such a wide slab of material. That is if it's suppose to be a hard enough result. That is why I am interested in honeys actual demo for that. And pending on some actual results demo, I intend to purchase those recipes from his etsy store

Yup, stucco or maybe a color polymer or even mix with light sand cement and latex paint. One must test and experiment. Ask experts in those industry's that know about weathering.

It's important both to keep water out and let water vapor (which we exhale) escape.

shaunw666 Yeah, he could do a fine coat, then some fibre reinforced, and then fill in the bulk with aircrete.

Andrew Cox one of my customers is using landscaping fabric dipped into Portland cement to make fake rock. You could soak it and lay it down in the mold for an outside skin. Then spray a couple of layers of standard stucco.

Roofing fabric. Much tougher. Stick it on with elastomeric paint.

SelfSufficientShaun

@@HergerTheJoyous forms for custom car interiors are made with material dipped in fibre glass resin then streched over a frame, this is similar to what you describe, but to make it more of a building material would it work to use a more absorbamnt material such as old blankets like removal companies use rather than landscape fabric which is plastic and wont soak the material, if waterproofing agents were also added they would end up on the outside of the aircrete to produce an outer skin with more resistance to the weaather

I almost forgot... please forget the spray painting of airconcrete…. spray paint the water glass instead then hand paint on the homemade starlite solution and spray pint the base paint and latex paint. Or you might just add forget the waterglass and add sodium silicate to the home made starlite solution & spraypaint it onto the aircrete suface then allow to dry and paint it with latex.

The foamed mix is going to be like... foam. Good insulation, poor crush strength. Notice the parts where he scraped the surface off with a trowel. This is why he is adding a stronger, higher density protective surface layer.

Why r people aski g this guy questions he doesn't even know what he is doing he should be aski g the questions dont take advice from someone who looks to be out of his element in this one

Not to say he isnt a nice guy but just because you can make a video of something doesnt mean you know what you r doing

@@titanman6319 thanks for the encouraging words. Perhaps you would be willing to post some better videos?

gregory green its a hopper for texturing walls

I'd get some Portland cement (around $10/bag) and try stuff.

Maybe u should give the man credit for being a loving father who stops what he's doing to care for his children! There are too many men out there who don't even know their children much less teach them, play with them, love them! Good for him showing his sons how to be a real man!

Combine the two views. Involving the kids is great, as is teaching them to think about work safety and to use and care for safety equipment. Too many are willing to take horrible risks to 'get er done'.

Most of the air gets knocked out of it through this process. I am Building my own spray gun on a DIY platform to mitigate this effect. However right n ow the way I did it with a texture gun the insulation value is greatly diminished.

Honey Do Carpenter I’ll keep an eye on your videos for that update...thank you by the way for all the information you provide

Really want to consider whether that would lead to trapped moisture against wood, rot and mildew. Depending on what your crawlspace walls are made of.

The University of Washington Mechanical Engineering department builds ferrocrete canoes. They work. Remember that battleships with inches- or feet-thick armor float.

oops, I mean 50% white glue (school type)

@@willissimpson7888 the white glue turns wet again in water even after its hard. Wouldnt make a good additive.

If you are going to try it, you probably want waterproof exterior wood glue.

What should he do that he’s not doing that could help? Tell the public

mrbizi perhaps you misunderstood what I said??? I wasn’t asking him do a PSA on Silva dust. I SAID I won’t support him or his channel by watching his videos BECAUSE he doesn’t protect himself from the SERIOUS danger of (silica dust.) At a minimum he should have a cheap mask on when he’s cutting, grinding, drilling or sanding concrete. Instead he’s breathing in a dust that’s causes lung disease, cancer and a crap load of pain!

Honesty may hurt some but safety is no joke!

a mask does help

You are right i have silicosis from silica

Acid wash first then Elmers glue. You are correct.

Assuming you are serious, wouldn't you want to use exterior wood glue?

Wood tends to swell, shrink, absorb moisture from the concrete, and is subject to rot.