Koch Chemie Polish & Sealing Pad

When it comes to machine polishing, most of the attention naturally goes towards cutting and refining pads. However, not every machine application involves removing paint defects. Applying certain paint sealants and finishing products evenly across a large surface can be just as important, particularly when consistent coverage and careful product control are essential.

The Koch-Chemie Polish & Sealing Foam Pad has been developed specifically for these finishing applications. Rather than using a firm foam designed to increase abrasion, Koch-Chemie has selected an extra-soft foam structure intended to spread polishing and sealing products evenly, with very little mechanical cutting action of its own.

One of the standout features is the low-profile construction. At just 25mm thick, the pad sits considerably closer to the machine's backing plate than some conventional polishing pads. This helps reduce the twisting forces generated during machine operation, providing a more stable and predictable feel when working across larger panels or changing direction around bodywork contours.

We particularly like this approach for sealant application. The objective when applying a non-abrasive paint protection product is to create a thin, even film rather than repeatedly work the product into the surface with unnecessary pressure. A soft, stable foam pad makes it easier to control the application and avoid wasting product through excessive loading.

The foam itself features an optimised open-cell structure, which Koch-Chemie describes as having an appropriate degree of reticulation and cell count. This construction contributes to the pad's working characteristics and makes it easier to maintain the foam by allowing residues to be cleaned from its open structure.

Another important detail is the specially milled edge. Rather than relying on a completely square profile, the pad features a shaped outer edge that increases flexibility and helps the working face accommodate curved bodywork. This is particularly useful when working around rounded wings, bonnet contours and other areas where a rigid pad can struggle to maintain even contact.

The coloured non-woven backing material is another thoughtful feature. Koch-Chemie uses colour identification across its polishing system to help distinguish pads intended for different stages of the detailing process. Having the appropriate pad clearly identifiable makes it easier to maintain a consistent working system, especially in professional environments where several different grades of polishing pad may be in use.

Koch-Chemie specifically recommends the Polish & Sealing Foam Pad for products such as 1K-Nano and Lack-Polish grün P1.03. Both are examples of finishing or protection products where controlled application matters more than aggressive defect removal. We'd therefore consider this a dedicated finishing and sealant application pad rather than a substitute for a conventional cutting or medium polishing pad.

It's worth making that distinction because softness alone doesn't guarantee a perfect finish. If the paintwork contains scratches, swirl marks or other defects, those imperfections should be corrected using a suitable combination of abrasive polish and polishing pad before applying protection. The Polish & Sealing Foam Pad is best used once the surface is already in the condition you want to preserve.

The range also includes a particularly useful selection of sizes. The 126mm and 150mm versions are intended for working across larger panels with appropriately sized backing plates, while the smaller 45mm pads are supplied in packs of five. These compact pads are especially useful where a compatible small machine is available for working around narrower or more intricately shaped sections of bodywork.

As with any machine polishing accessory, correct machine setup is essential. The pad must be matched to a suitable backing plate, used with an appropriate product and kept clean throughout the application process. Excessive product loading or unnecessary pressure can undermine the benefits of even the best finishing foam.

For us, the Koch-Chemie Polish & Sealing Foam Pad is a well-considered accessory for detailers who want more control over the machine application of paint protection products. Its combination of extra-soft foam, a stable 25mm profile and flexible milled edges makes it particularly suitable for evenly spreading sealants and finishing products. It isn't intended to deliver substantial paint correction, and that's precisely the point: it's designed to apply the final product carefully and consistently once the preparation work has been completed.