How to Polish RV Windows and Remove Water Etching
Clear RV windows make every drive and view more enjoyable — but water spots, mineral etching, and oxidation can quickly cloud that view. The good news? You can restore glass and acrylic windows back to crystal-clear condition using a few pro detailing techniques and the right products. This guide breaks down the safest and most effective way to polish RV windows and eliminate stubborn etching.
Estimated Reading Time: ~12 minutes
Why Water Etching Happens on RV Windows
RV windows face constant exposure to rain, sprinkler water, and hard minerals from wash water. When these minerals dry on the surface, they leave behind calcium and magnesium deposits. Over time, UV rays and heat can bake these minerals into the glass or acrylic, leaving permanent marks known as water etching.
Regular washing and sealing help prevent this — but once etching occurs, polishing is the only way to restore clarity.
What You’ll Need
- → Picture Perfect Polish
- → The Super Soaper
- → Everyday Microfiber Towels
- → Foam or microfiber polishing pad
- → Dual action polisher (optional for deeper etching)
- → Soft drying towel or blower
Step-by-Step: How to Polish RV Windows
Step 1: Wash the Windows Thoroughly
Before polishing, remove dirt and grime that could scratch your windows. Mix 2–3 ounces of The Super Soaper in a foam cannon or bucket and wash the glass using a soft mitt or Orange Wash Microfiber Towel. Rinse thoroughly and dry with a Massive Drying Towel to avoid new spots.
Wash Before You Polish
Use The Super Soaper for a spotless, streak-free wash that preps your RV windows for polishing.
Shop The Super Soaper Buy on AmazonStep 2: Assess the Damage
Not all spots are equal. Light surface water spots can be removed with a mild polish, while deeper etching may require multiple passes. Run your hand across the window — if it feels rough or chalky, you’ll need a bit more polishing time.
Step 3: Apply Picture Perfect Polish
Apply a small amount of Picture Perfect Polish onto your pad. If you’re working by hand, use circular motions with firm pressure. For machine polishing, set your dual action polisher to low speed and move in overlapping passes. Work 2x2 ft sections at a time.
The advanced abrasives in Picture Perfect Polish safely remove mineral buildup and restore optical clarity without scratching. It’s safe for both glass and acrylic windows.
Step 4: Wipe and Inspect
Once the polish begins to haze, wipe the surface clean with an Everyday Microfiber Towel. Check your work in direct sunlight or with a flashlight. If light etching remains, repeat the process with slightly more pressure or longer polishing time.
Step 5: Protect the Surface
Once the glass is clean and clear, apply a ceramic spray like Tough As Shell to protect against future water spots. The hydrophobic layer will repel water and make maintenance easier after each wash.
Polish and Protect for the Perfect View
Picture Perfect Polish restores optical clarity, while Tough As Shell prevents future etching with ceramic protection.
Shop Picture Perfect Polish Shop Tough As ShellWindow Polish Comparison Chart
| Product | Removes Water Spots | Safe on Acrylic | Finish | Ease of Use |
|---|---|---|---|---|
| Picture Perfect Polish | ✅ Yes | ✅ Yes | Crystal Clear | ★★★★★ |
| Household Glass Polish | ⚠ Partial | ❌ No | Cloudy | ★★☆☆☆ |
| Vinegar or Acidic Cleaners | ⚠ Temporary | ❌ No | Streaked | ★☆☆☆☆ |
Pro Tips for Polishing RV Windows
- → Always clean before polishing — dirt can cause micro-scratches.
- → Work in shade or a cool area to prevent polish from drying too fast.
- → Avoid aggressive compounds — they can haze acrylic windows.
- → Follow up with ceramic protection for long-term clarity.
- → Use separate towels for glass to prevent cross-contamination.
Related Reading
- How to Clean Stainless Steel and Chrome on an RV Exterior
- How to Clean and Protect RV Dashboards, Plastics, and Trim
- How to Prevent Mold and Mildew in RV Interiors
- Deep Cleaning RV Carpets and Upholstery: Pro Tips
- How to Clean and Sanitize Your RV Interior After a Long Trip
FAQs
Can you polish acrylic RV windows?
Yes, but only with a fine polish like Picture Perfect Polish. Avoid abrasive compounds that can haze soft acrylic surfaces.
What causes permanent water etching on glass?
Minerals from hard water bond with the glass surface under heat and UV exposure. Only polishing can remove these etch marks completely.
How can I prevent water spots after washing?
Rinse with filtered water and dry using a Massive Drying Towel. Apply Tough As Shell ceramic spray for hydrophobic protection.
Is it safe to use vinegar on RV windows?
No. Vinegar can damage tint and plastic seals over time. Use The Super Soaper for cleaning instead.
How often should RV windows be polished?
Once or twice a year, depending on travel frequency and storage conditions. Apply ceramic protection after polishing to extend clarity.
