@Ignacio-DHOME ah - smart thank you! Do you think there could be any issues with foam and high altitude? I tried a test yesterday and had problems. I used glycerine and axion (I’m in Mexico) but cold water. Will definitely try warm next.

@ormom8 thanks for the thoughtful reply! I’m a HDC fan as well - the colored cement really did turn out great!

I am an artist and am planning on casting aircrete and have a few questions.

1. Vertical pour
   A large part of my moldbox would be a vertical pour (4ft tall x 2.5ft wide x 2 in thick). Do I need to worry about slumping with a vertical pour? Are there additives or barriers that would prevent that?

2. Cracking and warping
   I’ve seen evidence of cracking and warping in youtubers aircrete casting. How do I avoid or prevent that?

3. Surface
   I’d like the surface of the cast to be the raw aircrete. Is there a matte sealant that you would recommend?

Excited to get started. Thank you!!