PIAA Silicone Si-Tech Flat Windscreen Wiper Blade - 21 Inch - PIAA - 97053

The silicone treatment is designed to last for the lifespan of the wiper blade, continuously applying a water-repellent coating with every wipe.

Replace the blades when you notice streaking, skipping, reduced visibility, or if the silicone coating appears to be wearing off, typically after 1-2 years depending on usage and environmental conditions.

The PIAA Si-Tech flat blades are designed for modern vehicles with specific wiper arm types. You must check the product's compatibility guide for your vehicle's make and model.

Flat blades have a lower profile, are more aerodynamic, prevent ice and snow buildup, and conform better to modern curved windshields, providing more consistent pressure and cleaner wipes.

No, the wiper blade continuously applies the silicone treatment to the windshield during normal operation after the initial application period.

Gently wipe the rubber edge with a soft, damp cloth. Avoid using harsh chemicals, solvents, or abrasive materials, as these can damage the silicone.

No, the silicone treatment works in conjunction with your washer fluid and rain, enhancing the water-repellent properties of the glass.

Ensure the initial 30-minute application period has been completed. Clean the windshield and the wiper blade itself with a damp cloth. Check for any debris on the blade's edge. Verify the wiper arm is applying even pressure.

Clean the wiper blade and windshield thoroughly. Re-apply the silicone treatment by running the wipers for 10-15 minutes on a wet windshield. If performance doesn't improve, the blade may be nearing the end of its lifespan.

Check that the wiper arm is correctly fitted and applying consistent pressure. Ensure the windshield is wet. A slight film of silicone should be present for smooth operation.

The frameless design helps prevent this, but in extreme conditions, ensure the blade is moving freely. Gentle scraping of ice from the windshield (not the blade itself) may be necessary.