Film over paint. SUNPH TPU skin-film replaces traditional painting on robot / exoskeleton shells — abrasion-resistant, impact-tolerant, weatherable and chemical-resistant surface protection that stays intact and simplifies manufacturing.
Robot and exoskeleton shells live under load, impact, moisture and outdoor use. Traditional paint scratches to the base, cracks under impact, yellows in sunlight, and traps moisture through pinholes.
TPU skin-film carries color and texture inside the film, heat-bonded to the substrate and flexing with the shell — keeping the appearance intact under repeated stress.
Versus paint, TPU film lasts in real conditions.
High-elastic TPU resists wear through long friction without exposing base; a continuous film with no pinholes keeps moisture out, no peeling.
The film is tough and heat-bonded to the substrate, flexing with joint shells under repeated motion — no cracking, no flaking, no paint burst.
Resists body sweat, sanitizing alcohol and weak solvents — no aging, discoloration or gloss loss under long wear and duty.
Premium TPU adds UV stabilizers; color sits inside the film, away from UV, holding hue under outdoor duty.
Legacy shells go injection → sanding → degrease → primer → topcoat → clear → bake → QC. TPU skin-film needs only thermoforming → bond / in-mold wrapping, dropping paint, bake and sanding entirely.
Scales better, repairs easier.
Film is only 0.1–0.3mm, adding almost no shell weight — ideal where robots are weight-sensitive.
After tooling, per-unit cost drops sharply — suited to volume models; upfront tooling exceeds paint but pays off at scale.
Light scratches polish out; severe damage swaps the local film — no full-shell repaint.
About fit and service for robotic film.
Yes. The film is tough and heat-bonded to the substrate, flexing with the shell under repeated motion without flaking or bursting.
Premium TPU adds UV stabilizers and keeps color inside the film, away from UV — holding hue outdoors.
Light scratches polish out; severe damage swaps the local film — no full-shell repaint.
TPU skin-film emits almost no solvent, cutting VOC sharply and easing environmental approval.
Send a shell sample; we return a TPU skin-film prototype and a paint-vs-film cost comparison.