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Glaco Windshield Rain Repellent: Can You Really Drive in Rain Without Wipers?

2026-10-10 · 20:53 · 6,275 views

Video by Paulo — Paulo's Garage.

🔊 Original Workshop Audio in Portuguese
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All torque specifications, tools, replaced parts, and step-by-step procedures are fully translated in the technical table below.

Does glass rain repellent really work? A practical test comparing untreated glass versus windshield treated with Glaco Compound, Glaco DX, and washer fluid under heavy rain conditions.

Video chapters

  • 00:00 Windshield rain repellent coating: does it make a difference?
  • 01:13 Which glass coating products are we testing?
  • 01:35 Initial test: simulated downpour and headwind
  • 02:30 Glaco Washer: repellent additive in windshield washer reservoir
  • 04:49 Glaco Washer hydrophobic performance on glass
  • 06:05 Deep cleaning and prepping windshield glass for coating
  • 07:10 Differences between glass water repellent technologies
  • 08:23 Applying Glaco Glass Compound polishing abrasive
  • 10:16 Water sheeting behavior on completely stripped bare glass
  • 11:11 Simulated rain test on untreated bare windshield
  • 13:40 Applying Glaco DX hydrophobic glass sealant
  • 14:48 Buffing residue and coating curing time
  • 15:09 Glaco DX water beading performance after full cure
  • 16:07 Hydrophobic visibility test viewed from driver's seat
  • 17:11 High-speed simulated heavy storm and airflow test
  • 18:49 Wiper blade chatter and coating limitations
  • 19:20 Conclusion: is a windshield rain repellent coating worth it?

Tools used

Parts mentioned / replaced