What Causes Wiper Shaking After Windshield Coating?
4 Answers
Reasons for wiper shaking after windshield coating: 1. Dirt on the windshield surface prevents the wiper rubber from adhering tightly to the glass during wiping, causing vibration. Cleaning the dirt can solve the problem. 2. The wiper rubber may have hardened or become too soft. Below is relevant information about wipers: 1. Wiper classification: Wipers can be categorized by their driving mechanism into mechanical, vacuum, pneumatic, hydraulic, and electric types. Modern vehicles typically use electric wipers, which are advantageous for their simple structure and easy control. Generally, a vehicle wiper consists of a motor, crank, linkage, wiper arm, and blade. 2. Wiper function: Wipers are devices used to remove raindrops and dust attached to the vehicle's windshield, improving driver visibility and enhancing driving safety. Due to legal requirements, almost all vehicles worldwide are equipped with wipers. Rear windows of hatchbacks and SUVs also often come with wipers.
I just had my windshield coated with crystal a few days ago, and the wipers started jumping, which really startled me. I asked the mechanic at the repair shop, and he said it’s mainly because the coating made the glass surface super smooth, causing the wiper blades to lose stability while rubbing—like walking on ice, making them prone to slipping. Plus, if the wipers themselves are a bit old or the rubber blades are worn out, they won’t work well with the newly coated glass. Uneven pressure from the wiper arm is another reason, either due to improper installation or loose screws. I think you can start by cleaning off any residue with glass cleaner and trying a new set of wiper blades. After coating, avoid using the wipers immediately—let the coating cure for a day or two. For regular maintenance, remember to replace the wiper blades every six months to avoid such issues in the future. Oh, and if the shaking persists, you might need to check the wiper bracket—don’t overlook the details of safe driving.
As a seasoned driver with years of experience, I've encountered wiper blade judder several times after applying ceramic coating. The root issue is that the coating makes the glass too slippery, causing the wiper rubber to glide unevenly and bounce more easily when wet. Aging wiper blades or loose wiper arms are also common culprits, especially if the wipers haven't been replaced recently. Rainy or snowy conditions exacerbate the problem due to uneven water distribution on the slick surface. My recommendation is to first clean the windshield with dedicated glass cleaner to remove any coating residue, then install a set of high-quality wiper blades. Never cut corners by continuing to use old wipers, as this will only worsen the judder. Long-term, it's wise to check wiper condition before applying ceramic coating to protect these critical components.
I know a bit about this issue as it's often discussed in car enthusiast circles. After glass coating, the surface becomes smoother, reducing friction between the wiper blade and glass, which can easily cause a skipping sensation. Aging wiper blades or improper installation can worsen this situation, such as when the edges of the rubber strip wear out and don't adhere properly to the surface. Remember to first clean the glass with neutral detergent to remove excess material, then test with new wiper blades - this usually solves the problem.
