A roof box is exposed to much more than the luggage inside it.
During every journey, it faces sunlight, rain, temperature changes, wind, road vibration and everyday impacts. That is why the material used to build a roof box matters—not only for appearance, but also for durability, reliability and long-term performance.
At ROAHTRIP, we use ABS+PC composite material for our roof boxes because we believe a quality roof box should be built for real journeys, not just look good on the showroom floor.
1. A Balance of Strength and Toughness
ABS and PC each bring different advantages to the material.
ABS provides good structural strength, rigidity and impact resistance, while PC (Polycarbonate) is known for its excellent toughness and resistance to impact.
By combining the two materials, ABS+PC creates a balanced material solution that offers both strength and toughness.
For a roof box, this balance is important. The product needs to maintain its structural integrity while dealing with bumps, vibration and changing road conditions during long-distance travel.
2. Better Resistance to Temperature Changes
A roof box spends most of its life outdoors.
It can experience strong sunlight during summer and freezing temperatures during winter. Frequent temperature changes can place additional stress on exterior materials.
ABS+PC offers good temperature resistance, helping the roof box maintain its physical properties across a wide range of outdoor conditions.
This makes it a practical choice for products designed for year-round travel and outdoor use.
3. Designed for Real-World Outdoor Use
Roof boxes are not indoor products. They are constantly exposed to the elements.
Rain, sunlight, dust and road environments can all affect a product over time. The material therefore needs to provide a reliable foundation for long-term outdoor use.
ABS+PC gives ROAHTRIP roof boxes a strong material base, helping us build products around our core value:
Reliability.
Because for us, a roof box should not simply carry your luggage.
It should give you confidence every time you get on the road.
4. A Better Surface for a Premium Finish
Material performance is only one part of the equation.
For a roof box, appearance also matters. A large exterior surface can easily become the visual centerpiece of a vehicle, so surface quality directly affects the overall perception of the product.
That is why ROAHTRIP does more than simply mold ABS+PC into shape.
We apply multi-layer surface treatment technology to the product surface to improve its gloss, visual depth and overall finish.
The result is a surface that looks brighter, smoother and more refined, while helping reduce oxidation and maintain its appearance over time.
Choosing the right material is the first step toward building a reliable roof box.
They should be ready for the next one.
ROAHTRIP — GET ON BOARD.