How well the material (or its typical product form) resists heat flow.
📦
Vacuum insulated panel
1
☁️
Aerogel
2
🧽
Polyurethane foam
3
Full ranking
1
📦
Vacuum insulated panelThermal
99
2
☁️
AerogelAdvanced solids
98
3
🧽
Polyurethane foamThermal
88
4
🪨
Mineral woolThermal
86
5
🌡️
Ceramic fibreFire performance
80
6
🐑
WoolTextiles
72
7
🧯
Intumescent coatingFire performance
70
8
🌲
WoodCeramics & wood
56
9
🕯️
Phase-change materialThermal
52
10
🎽
PolyesterTextiles
50
11
👨🚒
NomexFire performance
48
12
💎
Technical ceramicsCeramics & wood
46
13
🧴
PolyethylenePolymers
44
14
🫧
SiliconePolymers
42
15
🌱
CottonTextiles
40
16
🛞
Natural rubberPolymers
38
17
🦺
AramidTextiles
36
18
🦋
SilkTextiles
34
19
🏠
Gypsum boardFire performance
34
20
🍳
PTFEPolymers
32
21
🪢
NylonTextiles
30
22
🪟
GlassCeramics & wood
28
23
🏎️
Carbon fibreAdvanced solids
24
24
🏗️
ConcreteCeramics & wood
22
25
⬡
GrapheneAdvanced solids
18
26
✈️
TitaniumMetals
14
27
🥫
AluminiumMetals
12
28
🩺
NitinolAdvanced solids
12
29
🍴
Stainless steelMetals
10
30
🔩
SteelMetals
8
31
☀️
Perovskite (PV)Advanced solids
8
32
🔶
CopperMetals
6