airtight blocks.

[NAF-5th.Legion-Waffen.Div]

i just wanted to know for sure,i was always under the impression that interior blocks wasnt airtight,so i did some testing,but i was wrong,so i tryed out a few more blocks to see if they were airtight.i was really surprised.heres some pics.
http://steamcommunity.com/sharedfiles/filedetails/?id=655336476
http://steamcommunity.com/sharedfiles/filedetails/?id=655336450
http://steamcommunity.com/sharedfiles/filedetails/?id=655336429
http://steamcommunity.com/sharedfiles/filedetails/?id=655336369

[Karmaterrorᵁᴷ]

Thruster blocks are airtight aswell, even though you can see through a lil on the cut corners. Worst example i know is two airvents back to back next to eachother, theres a massive gap in the middle you can see through....but somehow still airtight :D

[TheMisled]

The front conveyer section on large reactors is somehow airtight. I had that section surrounded by windows and there was a gap big enough to through objects through.

[jandraelune]

Large Hydro thruster and even the Air Vent it's self is air tight...though you could fly your self through the holes.

[Phade]

Any block that has a single square surface (Such as the lower thruster portions) are classed as airtight. However, only on certain sides. The 90 degree slope block for example is only airtight on the two flat sides.