Practical Differences Shops Report
TPU: higher material cost, better long-term optics when formulated well. TPH: tempting roll price, higher complaint rate on yellowing and staining.
Do Not Pretend Every TPU Is Equal
Aliphatic grade, top coat, and adhesive still separate good TPU from mediocre TPU.
TPU is the chemistry target for premium clear film. TPH is the usual caution label in installer conversations.
Pay for a named TPU SKU and a registration path.
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