Newly painted or sprayed facade elements, such as window frames, doors, facade panels or flashings, regularly experience unwanted visual problems, even before the paint layer has fully hardened. One of the most common and disturbing phenomena is the development of dark leak streaks, often within a few days of painting. These streaks are the result of a combination of atmospheric pollution, rainfall and insufficiently hardened paint.
Although the surface feels dry after a few hours, it is still soft and porous at a molecular level. In this vulnerable phase, the paint layer is extra sensitive to external influences. Rainwater that flows along adjacent materials, such as masonry, zinc, concrete or plastic, carries dirt particles, lime, soot or even metal oxides with it. These then wash over the painted surface and adhere as dark streaks to the wet or semi-hardened paintwork. Such contamination is absorbed into the top layer and is often difficult or even impossible to remove with regular cleaning.
Why is this a problem?
- Aesthetically disturbing: Dark leak marks – especially on light colours – are very noticeable and give a sloppy or poorly maintained impression.
- Cost-increasing: Repair is time-consuming and expensive. Sometimes repainting is necessary, which leads to additional material and labour costs.
- Complaints after delivery: In new construction or renovation projects, residents or clients may be dissatisfied with the finish immediately after delivery.
- Image damage for contractors: Painting companies, contractors or property managers are often held responsible for pollution over which they have no direct influence.
Solution: Polish & Coat
Polish & Coat is a specialist product that has been designed to tackle this problem in a fast, efficient and non-destructive way. The product can be used in two scenarios:
- Preventive: Immediately after applying varnish or paint to temporarily protect the top layer against pollution and water penetration.
- Restorative: On surfaces where leak marks are already present, to clean them and restore the original appearance.
How Polish & Coat Works
- Step 1: Polish
The polish action helps to remove superficial dirt, streaks, light oxidation and dull spots. It works gently and does not affect the underlying paint.
- Step 2: Coat
After polishing, the product leaves an ultra-thin, transparent protective layer. This coating is hydrophobic (water-repellent) and dirt-resistant, allowing rainwater to easily run off the surface without leaving any traces.
Benefits at a glance
- Prevents leaking streaks on freshly painted surfaces
- Restores dirty or weathered paint without repainting
- Extends the visual lifespan of paintwork
- Easy and quick to apply (manually or mechanically)
- No influence on the gloss level or colour of the substrate
- Reduces the number of delivery points for new construction and renovation
- More environmentally friendly than additional repainting
The result is a fence that not only looks like new, but is also structurally more resistant to future weathering. A reliable solution for professional applications where appearance and durability go hand in hand.
