TPE Brake Light Seals for Automotive Lighting

KRAIBURG TPE Sparks Innovation in Automotive Brake Light Seal Solutions
Road safety depends on clear and reliable communication between vehicles, especially through properly functioning brake lights. When a brake light’s internal components are exposed to moisture, dust, and debris, its ability to function properly can quickly deteriorate.
A brake light seal forms a watertight and airtight barrier that protects the bulb and electrical connections, aiding proper operation and extending service life. Without an effective seal, moisture and contaminants can cause corrosion, reduced light output, or electrical failure, impairing clear signaling and overall road safety.
Because brake lights operate in demanding conditions and serve a safety-critical function, their seals require compounds with superior properties such as thermoplastic elastomers (TPEs), commonly used as automotive exterior TPE materials, for long-term reliability.
KRAIBURG TPE, a global manufacturer of TPEs and customized solutions for various industries, is a dependable source of advanced TPE compounds, offering its THERMOLAST® K series as TPE solutions for automotive exterior components, including automotive lighting applications.

Strong adhesion for secure sealing
The THERMOLAST® K series, a high-performance automotive TPE, offers excellent adhesion to common automotive polymers such as PC, ABS, PC/ABS, ASA, and SAN, enabling seamless integration of flexible seals with rigid housing via insert molding. As versatile brake light seal materials, they allow manufacturers to achieve complex geometries with precise tolerances while maintaining consistent sealing functionality.

Balancing comfort and design for automotive interiors
The THERMOLAST® K series is likewise well-suited for automotive interior applications due to its controlled emissions and low odor, ensuring safe and comfortable use. Additionally, the compounds can be colored, offering flexibility in style and function for vehicle lighting parts.

Quality and safety-approved materials
The THERMOLAST® K series for brake light seals conforms to key automotive standards and fulfills interior flammability requirements such as 49 CFR §571.302 (FMVSS 302) and UL 94 HB. The series is also approved by major OEMs, including VW 50123, BMW GS 93042, and Mercedes-Benz DBL 1262, ensuring consistent, high-quality performance in production vehicles.

KRAIBURG TPE at CHINAPLAS 2026
KRAIBURG TPE will join CHINAPLAS 2026, taking place from 21–24 April 2026 in National Exhibition and Convention Center (NECC) Shanghai, China at Hall 7.2 Booth No. D13, where the company will present a broad portfolio of thermoplastic elastomer (TPE) materials. Visitors are invited to visit the KRAIBURG TPE booth to explore the latest material innovations and benefit from free one-to-one consultations with technical experts, offering personalized material recommendations and application support.

Sustainability from the get-go
At KRAIBURG TPE, sustainability drives our innovation. Our portfolio includes bio-based TPEs and compounds with post-consumer (PCR) and post-industrial (PIR) recycled content. Selected TPEs are certified under GRS and ISCC PLUS. We also provide Product Carbon Footprint (PCF) data upon request to support sustainability decisions.

We proudly earned the EcoVadis Gold Medal in 2025 and are committed to the Science Based Targets initiative (SBTi), aligning our goals with global climate action.

From reducing emissions to increasing circularity, our sustainable TPEs deliver reliable performance and are available worldwide to support your applications while advancing your sustainability goals.

Get in touch today to learn how KRAIBURG TPE can support your sustainability and product development journey.

Discover More with TPE: Enhance every vehicle part from mud flaps to car storage tray using our high-performance and versatile TPE materials.

Disclaimer: The applications mentioned are illustrative of material capabilities only. Final product suitability and regulatory compliance must be assessed and validated by the customer.