Vacuum Panels and Gel: Cutting Mass Without Losing Hold Time
VIP boxes cut gel mass 30-40 percent, not 60. Why a punctured panel looks fine, how edges halve the R-value, and when the payback actually works.
Water Dummies Lie: Thermal Testing With Real Payload Mass
Water has twice the specific heat of most payloads. Validating with water dummies can pass a box that fails with real product. What to use instead.
