Polishing pad with multi-layered structure and integrated carbon fiber intermediate layer for machine-based paint finishing of vehicle surfaces

Abstract

Polishing pad for machine processing of painted vehicle surfaces, consisting of an upper polishing layer and a lower damping layer made of foam, characterized in that a wafer-thin carbon fiber or carbon fiber intermediate layer is arranged between the polishing layer and the damping layer, which improves the heat distribution within the pad and increases the structural stability during the polishing process.

Description

[0001] Polishing pad with multi-layered structure and integrated carbon fiber intermediate layer for machine paint treatment of vehicle surfaces. Technical field

[0002] The invention relates to a polishing pad, which is intended in particular for rotary and eccentric polishing machines for processing, preparing and refining vehicle paints. State of the art

[0003] Common polishing pads typically consist of single- or multi-layered foam, where the material hardness varies across the layer thickness. However, this design often leads to uneven pressure distribution, localized heat buildup, and rapid material fatigue, especially during extended polishing cycles or at high speeds. Object of the invention

[0004] The object of the invention is to provide a polishing pad that has improved thermal stability, more uniform pressure distribution, as well as increased dimensional stability and service life. Description of the invention

[0005] The polishing pad according to the invention consists of a multi-layered foam structure which additionally contains a wafer-thin carbon fiber or carbon fiber intermediate layer between the polishing layer and the damping layer.

[0006] Structure (from top to bottom): 1. Polishing layer: Fine-pored, abrasion-resistant foam (e.g. EVA or PU special foam) with high polishing effect and uniform force transmission. 2. Carbon intermediate layer (new): An ultra-thin layer of carbon or carbon fiber material integrated into the foam structure. This layer provides thermal and structural stabilization to the pad. 3. Damping layer (grey): Elastic, temperature-resistant foam with medium density for vibration absorption and pressure distribution. 4. Carrier layer (black): Heat-resistant hook and loop system (velour) for secure attachment to the backing plate of the polishing machine. Effect of the carbon interlayer

[0007] The carbon intermediate layer causes: - even heat distribution across the entire pad surface, - a significant reduction in heat peaks in the foam, - increased structural stability under high mechanical stress, - extended pad lifespan due to reduced material wear, - more consistent polishing performance even during extended use. Advantages of the invention • Uniform temperature distribution during the polishing process • Reduced material fatigue and longer service life • Improved dimensional stability at high speeds • Optimized pressure distribution for a uniform polishing pattern • Compatible with all common polishing machines • Improved efficiency in professional applications Application area

[0008] The polishing pad is suitable for professional and semi-professional vehicle preparation, especially for paint defect correction, gloss polishing and sealing of sensitive paint surfaces. Reference symbol list 1 foam 2 carbon fiber interface layer 3. Thickness less than 0.5 mm. Flexible, heat-resistant fiber composite. 4 foam layers 5 Velcro / Velour

Claims

[1] Polishing pad for machine processing of painted vehicle surfaces, consisting of an upper polishing layer and a lower damping layer made of foam, characterized by , that a very thin carbon fiber or carbon fiber intermediate layer is arranged between the polishing layer and the damping layer, which improves the heat distribution within the pad and increases the structural stability during the polishing process. [2] Polishing pad according to claim 1, characterized by , that the carbon intermediate layer is embedded across the entire surface of the foam structure and ensures an even temperature distribution across the entire pad surface. [3] Polishing pad according to any one of the preceding claims, characterized by that the carbon interlayer has a thickness of less than 0.5 mm and consists of a flexible, thermally conductive fiber composite

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