This is dut to the charring of glass wool before dealing with thermal insulation. When the temperature exceeds the maximum operating temperature of glass wool, it will char. This will have some impact on the insulation effect, so it is better to know the highest temperature of the thermal insulation material before using.
The burning like alcohol lamp uses glass wool as the substrate. There are two possibilities to take alcohol lamp to do experiment, which containing organic substances. 2. 1, High temperature oxidation. I produce aerogel thermal insulation felt, and I have seen that the charcoal ash produced is attached to the glass wool. It has some impact on thermal insulation effect, but the impact is small.
