Boats
How to Clean Boat Isinglass Without Scratching It
By Solpath Window Detailing · Published · Updated
Clean boat isinglass by rinsing it with plenty of fresh water to float off salt and grit, washing it gently with a cleaner made for clear vinyl and a soft microfiber cloth, rinsing again, and drying with a clean towel. Never use glass cleaner, ammonia, paper towels or a dry cloth on it. Once clear vinyl is crazed or yellowed, cleaning will not bring it back.
Why isinglass is so easy to ruin
Isinglass is clear vinyl, not glass. It is soft, it scratches when grit is dragged across it, and it clouds when it meets the wrong chemicals. Salt makes all of that worse, because salt crystals are abrasive and they hold moisture on the panel.
The right way
- Rinse thoroughly with fresh water, top to bottom
- Wash gently with a cleaner made for clear vinyl, using a soft microfiber cloth
- Rinse again before anything dries on the panel
- Dry with a clean, soft towel, blotting rather than scrubbing
- Apply a protectant made for clear vinyl if the panel maker recommends one
What to avoid
- Glass cleaner, and anything with ammonia or alcohol in it
- Paper towels, shop rags and dry cloths
- Brushes, including soft deck brushes
- Cleaning in full midday sun, when the panel is hot
- Folding panels; if they have to come off, roll them with a soft cloth between the layers
How often
A freshwater rinse after every saltwater trip does more for isinglass than any product. For a boat used most weekends, a proper wash every two weeks keeps salt from building up. A boat that sits in the slip still collects salt spray and needs washing too.
When it is past saving
Panels that are crazed, yellowed or deeply scratched will not come back with cleaning or polishing. We will tell you that rather than charge you to find out, and the answer is new panels from a canvas shop.
