Aerogel is (hopefully) a new element that will be coded to act under most normal conditions as a type of gelatinous material, when placed on a flat horizontal piece of any solid material, it will even itself out into a balanced pile of itself. When it is placed on the side of a vertical solid, it begins to slowly fall, all the while clinging to the surface of the vertically placed solid. This falling motion will be nearly comparable to falling mercury while influenced by a spark arcing through it. This staggered falling motion will be accompanied by a clinging characteristic, almost as if the aerogel senses a surface nearby, and attempts to move towards it, if within a few pixels of the surface already being touched by the aerogel itself. This will enhance its uses ten-fold in game. As you may know, aerogel is nearly weightless, so its unaffected falling speed will be minimal in the game, however you may realize it falls quite normally IRL, but for this being only a game it wouldn't make the new element any better by making it fall at the same speed as a regular powder like sand. Here is where the slow falling speed would become handy: when Agel is falling or is in a stationary position, its current position not affecting this new concept, and a powder falls into it from atop, below, (below as in the Agel actually falling onto it) or from either evenly leveled side, the loose powder will be "absorbed" into the gel, towards the center mass of the Agel. This should only work if the mass of the powder is equal to or less than that of the Agel it is touching. So if only a little portion of a powder is in contact with the Agel, inly the contacting amount will be absorbed into the Agel. You know how when you drop any powder (besides concrete because it usually stays stacked onto itself) onto a flat surface the powder naturally falls into a mountain shape due to gravity? If that powder were to start to fall into the Agel as excess from the top of the pile where it was unbalanced, only that much would be absorbed. I was thinking it would have a powder form and a solid form, perhaps the powder form would be what I have listed above, the the solid form would be called Agls, standing for aerogel solid. (Agel is just aerogel, I don't put a "p" after Agl on this because gel in its IRL form is naturally gelatinous, and for all intents and purposes can be called a gooey powder in powder toy. For the rest of the description I will be talking about the solid form, only because when I speak of the solid form and its reactions it will also apply to the powder form too.

Agls: the solid form of aerogel, a solid in itself and a very good insulator (as suggested by @Lockheedmartin ), able to absorb heat extremely well. Im going to run through a list of things on how it reacts by itself under heat and pressure and how it reacts with its with its powder counterpart. First, when heated and pressurized using the manual tools, surprisingly, it won't do anything. Powder toy in my opinion has enough reactant materials that, well, react under heat and pressure. What TPT needs now is a material that is a good insulator and doesn't react at all under either circumstance. This would be great for precise devices, that require more precision in heat and pressure control than that of what can be provided by insulation. (The solid). So besides these benefiting factors, when the solid aerogel comes into contact with its powder alternative, it slowly (the powder version) turns into the solid version, at the same rate of change from liquid rubidium turning into rubidium. That speed of change shall be constant. I'm debating the use of this change of state, but it seems like a good choice. I'm making a long list of all the elements it reacts with below:
(The solid version doesn't allow the absorption of powders, and ill explain how the aerogel types react with fire soon.)
Agel: (the powder version)
Reactions with all the types of elements:
With powders: absorbs almost all types of powders, except for Anar,and mort. Anar will escape its grasp, but when mort is contained it will be held in its grasp, but the releasing smoke will escape its confines.

I'm going to skip to the part about fire right now, because I can't explain how the powder version (Agel) works without describing its reaction with flames. So when either type of aerogel reacts with fire, the fire instantly turns into Co2 on the powder version, with a temp of 0. When it hits the solid version, its temperature turns into 0 also. I say this because it would be a great solid equivalent to Co2, an almost near impenetrable conductor of heat and pressure.
So when mort is contained, same with coal powder, firw, fwrk, the escaping smoke, fire or other gaseous form of a burning bi-product is released, it travels through the Agel without affecting the material. A better reaction might be to just extinguish the flame altogether, but you still have releasing gases, so why not.
notice how I don't list ignitable liquids, because liquids on fire behave differently than powders.
reaction with liquids:
Agel will react with liquids like any solid, except flammable liquids. Any non flammable liquids will pass over the Agel, including soap, Pste, bizg, glow, Mwax, sltw, dstw, and water.
Note: the waters might be considered "absorbable", because when heated they produce a bi product of steam, but considering this is a heat absorbing product, no point in allowing the heating water-process to continue once it enters the Agel, so this one with the water is up to the Dev team.
The other liquids that would be absorbed are bubw, as it releases Co2, loxy would be absorbed, because it releases oxygen, but then again, it only reacts with elements that are hotter than itself, and Agel is a neutral 0 degrees C; so again, thats up to the dev team, but id say it would pass right over Agel just to be safe with the temp thing. Desl would be abosrbed because it can ignite. lava would be absorbed and turned into concrete, because of Agel's heat absorbing powers. Oil would be the same as desl, because its flammable. as for Agel reacting with Acid, i think the powder version should be destroyable with acid, but the solid version should be able to contain acid safely.

Gases reacting with Agel: Boyl will instantly lose its expanding property, if expanding, when coming into contact with Agel. Caus will destroy Agel just like Acid, and the opposite reaction with Agls. Co2 acts neutraly, same with smoke, and Nobl will instantly turn back into regular nobl, not plasma, when sparked and coming into contact with either type of Aerogel. Plasma will react the same as fire, it instantly loses its temp, but instead of dissolving into nothing, it turns into Nobl. this would be great for nobl reactors BTW. wtrv diffuses back into water, and gas is also neutral. oxyg is also neutral.

Fun fun, explosives reacting with either Aerogel (ill point out any reaction differences between the powder version and solid state when i go along here)
Gbmb, obliterates the solid version into the powder version on contact, but not through pressure. think about a way to block a pressure wave. put up solid Agls and drop the gbmb. the gbmb may turn the solid into a powder, but it continues to absorb the pressure as it rides on the outward moving pressure wave. so when the powder Agel hits an obstruction (your house or bunker with newt gravity on) the pressure wave cannot travel past the powder version Agel, blanketing the obstruction and keeping it from being destroyed by the pressure to a certain degree by the pressure wave, if the obstruction is destroyable by pressure (aka brick or bmtl).
IGNC, no big reaction, both versions of aerogel diffuse the produced fire.
TNT, same as IGNC above.
C-5, see cflm below.
CFLM: when in contact with aerogels, both states, it instantly turns into Hydrogen. i thought this would be cool as heck for rebreathing systems and engines, a whole new group of saves.
FWRK and FIRW both react as said before in the above description of the powders.
(note, i forgot to say earlier that the solid version can hold powders and other free floating solids and liquids.)
BOMB-destroys chunks of either material.
Dest, turns solid version into powder, and the powder version ( this might work) will contain it.
THRM-can get absorbed by the powder version and supported by the solid. nothing special.
THDR- as you may have noticed by now, all pressure creating materials turn the solid version into the powder version, and it leaves the powder version unaffected. im debating whether or not the powder version will be pushed by the pressure, slightly affected, or not affected at all.
THDR continued--- so im thinking it will turn the solid into a powder, and then based on the description above, affect the powder in any of those three ways, preferably the middle of the three, minimaly affecting the powders motion.
LRBD will not turn into RBDM on contact, because there wont be an effecting temp difference.
RBDM, no big reaction.
C-4, no big reaction.
NITR, absorbable. no big reaction.
Gun, absorbable, no big reaction.
fire, see above notes.
LIGH, breaks solid Agls after multiple contacts. maybe even after just one strike in the places of contact.
the rest should stay the same, solid in form.
merc, passes over.
SPaRK, does nothing.
PIPE- takes the powder version Agel. no big reaction.

Radioactive Section Reactions:
neut- tuen both versions into regular insulation when in contact, NEUT travels through Agel, and bounces off Agls, but still effecting contacted surface areas.
Plut, fissionable inside Agel, releases, Co2 when plasma and fire are created.
Warp disfigures both materials.
Deut, containable at any temp in Agel. No temp change means a constant deut temp while in contact with both states of matter.
AMTR destroys both versions.
Uran, doesnt create heat in either material.
Photons, travel through Agel and Agls, and melts Agls (solid form) in places contacted in and throughout the photons range of travel.
ISOZ, turns into photons inside both types. same with ISZS solid.
Sing destroys both too.
Elec- still not sure. Ill let the dev team decide on this one.
Life is conntainable in both. again, unsure on this.
(ill post a definitive idea when it comes to me.)

Solids to finish off the reactions list:
I was thinking Vine should grow into Both versions, that would be a neat reactions between solids.
Unsure of how DRIC and NICE would effect both states of matter for aerogel.

Well thats the reaction over-view.

Uncertainty's:
should the solid form break under pressure? (im thinking it shouldn't.)
How should the acids effect both types?
How should LIGH affect it? (refer back to the first uncertainty with pressure breakage.)
How should RPEL and FRAY affect the powder version Agel?
How shall BOMB, DEST, GBMB,SING,AMTR and THDR react with both versions? (refer back to the first uncertainty with pressure breakage.)
How should life effect these?
How should DRIC effect both materials?
One last thing, should stickman slowly sink through the powder version too? just wondering.

I hope you enjoy my element review for Aerogel, suggested by @Lockheedmartin, although i had this idea planned out for quite some time, i had been waiting for an official response from a creator/admin/mod on the thread concerning gelatin, a similar cry for an element like Aerogel.

I hope it isn't too much to ask for a quick review by a Creator of TPT.
Im also pretty sure the only way to make this work is to make both a solid and powder version for this, so let me know what to improve on for this future (hopefully) element description.

Thanks Lockheedmartin for your indirect approval, I have been waiting to share my ideas on this for quite some time now!

Thank you everyone, and enjoy.

-R3APER.

Shortened Edition:
I have thought up an idea with some helpful inspiration from one of our moderators and the help of other contributors in our community, to create a type of insulating material that may be made into two forms, a solid state of a material called Aerogel called Agls, and a powder form that takes on all the same characteristics as the real Aerogel, called Agel.

(Not done with the summary yet, sorry.)

@Nab1929 (View Post)
Sorry bro didn't see your post, I shut off my computer right when I finished my message on the gelatin post yesterday, I didn't read any of the other comments. I guess a powder form was inevitable to be thought of. I actually own a good size chunk of the stuff, its very fun. That's where I got the powder idea, because it breaks into little pieces every once in a while. I converted breaking into small pieces = powder form here on TPT.

And what do you think about the ideas? I put 5 plus hours into this.

@Lockheedmartin (View Post)
Thank you, I am typing up the shortened edition at the moment.

Hopefully you can get the development team to see if the clinging property's will be feasible, I know the coding can be tricky sometimes when dealing with new property's. This may sound far fetched, but I think it can be done.

@epicksl (View Post)
That would be one of its intended purposes in an engine. In a powder form it could be administered into an engine to shut off a certain function, then be released into some void to clear the area and continue on with that function. Its very beneficial to those who look for a good material to be used in engines and so forth. There are so many applications it makes my head hurt sometimes. (I too need more sleep.)

My only problem I have deciding is how destroyable can this material be without being too weak or too tough, making.it unrealistic to be used in an engine. TPT has such a spectrum of durability throughout materials it gets unbearable at tunes to think what is realistic and what is not. If this is realistic, then it doesn't work in unrealistic settings. Vice versa the other way around. I need help from others finding the good place in between both without looking like it was more so designed for realism or unrealistic type things.

If it breaks with pressure, its realistic.
If it doesn't, its working to its full potential, yet it becomes unrealistic.
And I still need a way for the solid version to turn into the powdered version.
perhaps making it so that the solid version breaks when exposed to HUGE amounts of pressure?
I don't think heat should ever effect it, just lots of pressure.

@mniip (View Post)
No pain no gain.