Sustainable TPE for comfort and durable smartwatch straps
KRAIBURG TPE offers its THERMOLAST R series for smartwatch straps, delivering smooth and comfort wearing experience, long durability, as well as sustainability commitment.

KRAIBURG TPE THERMOLAST R is ideal for smartwatch straps.
Comfort wear and long durability
THERMOLAST R compounds offer a smooth, non-sticky TPE surface and a premium tactile feel for smartwatch straps, taking user comfort up a notch.
The smartwatch strap material’s optimized mechanical properties ensure durability against repeated bending, stretching, and daily handling, making the material ideal for long-term use in wearable devices.
With excellent wear-resistance, the compounds keep smartwatch straps in top shape even with frequent use.
Design versatility
THERMOLAST R soft-touch TPE compounds are available in black and natural colors, with pre-coloration options that offer versatility for brand-specific aesthetics and product differentiation.
Widely used as TPE in consumer electronics and wearable devices such as earphones, remote controls, gaming consoles, and other soft-touch components, they allow designers to create functional and visually appealing products across various applications.
Seamless integration with rigid components
THERMOLAST R exhibits excellent adhesion to engineering plastics such as PC, ABS, and PC/ABS in multi-component injection molding, allowing soft strap elements to bond seamlessly with rigid smartwatch housings.
Using this injection molding TPE enhances product reliability and streamlines manufacturing, ensuring consistent quality in high-volume production.
Sustainability at the fore
The THERMOLAST R series incorporates a hardness-dependent post-industrial recycled content ranging from 34% to 50%, allowing manufacturers to lower their environmental footprint without compromising product quality.
The GRS-certified compound and recycled TPE material balances sustainability and reliable performance for high-volume electronics production.