A VIP declares 0.007 W/mK and a microporous board declares 0.023, so the panel looks three times better until you fix the temperature. Standard VIPs are rated to 80 °C, stainless-film panels to 400 °C
UL states that UL 9540A "does not provide a certification, UL Mark, or pass/fail results" — so a genuine report can still say almost nothing about whether one burning container will ignite its neighbo
Edition 6 of UL 9540A makes large-scale fire testing the deciding level and requires passive containment with active systems disabled, so thermal barriers, fire-resistant materials and internal segmen
Continuous furnaces are the easiest place to justify insulation and almost everyone justifies them for the wrong reason. Energy is the smallest of three benefits — temperature uniformity and recovered
Aluminium runs at half the temperature of steel, which makes it look like the easy case — it is not. Three properties of molten aluminium change the design: it penetrates joints, it reacts with silica
A qualification method for distributors and refractory contractors pricing a second source: what thermal equivalence must mean curve-for-curve at real mean temperatures, the installed-cost arithmetic
Refractory and insulation do different jobs and the confusion between them is the most common specification error in a thermal stack. A four-band temperature map: above 1000 C as a ladle back-up layer
Why three quotes for the same board come back 30 percent apart — and how to write the inquiry so they do not. Eight fields that decide whether quotes are comparable at all: temperature gradient rather
A barrier-material brief for battery engineers: what a venting cell throws at whatever sits between cells, why organic fillers, mica, aerogel and fibre paper each fail the slot, how a 2 mm inorganic m
A wall-thickness method for high-temperature thermal battery vessels: the three budgets that size the wall (transport envelope, storage volume, shell temperature), why conventional refractory and fibr