Interior PPF Explained: TPU vs PET, What It Protects, and What It Costs

Interior PPF and a touchscreen guard get bought as if they're the same product. They aren't. One is a thick, self-healing TPU film built for curved, glossy trim — centre consoles, AC panels, gear surrounds, door inlays. The other is a thin, hard-coated PET film built for flat displays — infotainment screens, digital clusters. Put the wrong one on the wrong surface and it either won't survive daily handling, or it'll dull your screen's touch response.

What Interior PPF Actually Protects Against

Interior PPF's job is narrow and specific: it takes the daily scuffing from keys, rings, watches and knuckles so the glossy trim underneath doesn't dull, swirl or scratch first. Good TPU film self-heals light marks with warmth — sunlight through the windshield is usually enough.

TPU vs PET — The Material Difference That Actually Matters

Interior Pre-Cut PPF (TPU)

Thicker, self-healing, built for curved glossy surfaces. Aliphatic-grade TPU — the same film chemistry used on exterior PPF — resists yellowing and UV degradation far better than cheaper aromatic TPU. This is what belongs on piano-black consoles, AC panels and door trim.

Touchscreen Guard (PET)

Thinner, hard-coated, not self-healing, but optically clearer and built to preserve touch sensitivity. This is what belongs on your infotainment display and digital cluster — never TPU film, which is too thick to keep a screen responsive.

How Self-Install Actually Works

Every panel in a proper pre-cut kit is labelled for your exact model, variant and year — there's no cutting or trimming on the car. The process:

• Clean the panel thoroughly, removing any polish or dressing residue
• Dry-fit the labelled piece first, before peeling any backing
• Peel only part of the backing, anchor one edge, then work across slowly
• Never touch the adhesive side with bare fingers, and never stretch an exact-fit piece over a curve
• Give the panel a couple of days before wiping it with anything stronger than a dry microfiber — the adhesion at the edges needs time to fully set

What Interior PPF Costs in India

Pricing runs in three rough tiers: standalone display guards typically start around ₹200–400, individual pre-cut trim pieces (steering wheel, AC vents, gear surround) run roughly ₹400–1,500 depending on panel size, and full-cabin pre-cut kits span about ₹6,000–14,000 — mass-market cars at the low end, premium and luxury vehicles at the top. For comparison, full exterior PPF installation in India typically runs ₹20,000–2,50,000+. That gap is exactly why interior PPF works as a lower-commitment, lower-regret first step into protecting a new car.

Why This Matters More on Newer Cars

Cabins are getting glossier and more screen-dependent every year. Alternative-fuel and electric passenger vehicles — which lean hardest into large touchscreens and haptic panels — made up over 40% of India's passenger vehicle retail share as of June 2026. More glass, more gloss, more touch surfaces per cabin means more panels that benefit from a protective layer before the first scratch happens.