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A scratched motorcycle windscreen is more than just a cosmetic issue. It means reduced visibility, increased riding risk, and a noticeable drop in your bike's value. The good news is that the majority of scratches on a motorcycle windscreen can be reduced or even completely removed, provided you use the right method and the right products. Whether your motorcycle windscreen is made of plexiglass, polycarbonate or PMMA, this guide walks you through every step to restore a clean, clear and glossy windscreen without risking further damage.
Why does your motorcycle windscreen scratch so easily?
Before starting any restoration work, it's important to understand why a windscreen scratches. This understanding will help you choose the best method and avoid repeating the mistakes that caused the scratches in the first place.
Motorcycle windscreens are made from thermoformed materials that are highly impact-resistant, but relatively soft on the surface. This means they can withstand impacts well, but mark easily from even the slightest abrasive friction. The main causes of scratches are as follows:
Dried-on insects that you try to remove dry or with a rough cloth top the list. Once dried, these residues become extremely difficult to remove without scrubbing, and it is precisely that scrubbing that marks the surface.
Cleaning with an unsuitable cloth comes next. A kitchen towel, a scouring sponge or even standard paper towels can leave micro-scratches invisible to the naked eye, but which accumulate with each wash and eventually dull the clarity.
Stone chips thrown up while riding, especially on motorways or behind other vehicles, can create sometimes deep impacts. Sand, dust and winter road salt also play a significant abrasive role.
Finally, storage in a cluttered garage or transport without protection can cause scratches through contact with other parts or tools.
Understanding these causes is already half the battle. The second half involves acting correctly, without making the situation worse.
Identifying the type of scratch before you start
Not all scratches are treated in the same way. Before reaching for the motorcycle windscreen polish or sandpaper, take the time to assess what you're dealing with. This step is crucial and far too often overlooked.
Hold the windscreen under a bright light, ideally natural daylight or a powerful lamp. Tilt it at different angles to bring out the defects. You will then be able to identify three main categories of scratches.
Superficial micro-scratches, sometimes called
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