A refrigerated truck builder in Indiana scrapped 47 panels last March because the imp panel thermal readings came in 22% below spec during their validation test. The supplier had switched foam blowing agents without telling anyone. That one substitution cost them $84,000 in wasted material and a 6-week production delay. I’ve seen this happen four…
I’ve watched three vehicle manufacturers recall units in the last 18 months for the same reason. They spec’d fire resistant panels that sailed through ASTM E84 Class A testing but couldn’t survive actual road conditions. One builder used MgO board cores — the fire rating looked great on paper, but those brittle boards cracked after…
A Texas fleet operator scrapped six new trucks after 90 days due to severe reefer truck insulation panel thermal drift. The supplier promised R-25 panels, but constant highway vibration triggered rapid foam degradation that dropped the effective R-value to R-19. Frozen cargo thawed, forcing the carrier to absorb $280,000 in spoilage claims. We ran our…
PVC foam core with thickness variance over 0.8mm is enough to destroy every bond in a vacuum bagging process, and the line shutdown that follows is measured in days. For vehicle builders chasing a double-digit curb weight reduction target, that kind of failure is exactly why PMI foam core enters the evaluation. The material costs…