How to Waterproof Maps
A good map is essential to any travel, especially if your trip takes you on a hike. A well-prepared hiker always waterproofs her map, so that this valuable guide doesn't get destroyed in a downpour. However, it rains in the city, too, so it's a good idea to waterproof your maps if you're using print-outs or other paper maps instead of laminated ones. Fortunately, making a map waterproof is easy, so long as you allow enough time for the process.
- Water sealer
- Polyurethane foam varnish brush
- Clothesline and clothespins
- Sheet of plastic larger than your map
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Instructions
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1
Lay down a sheet of plastic in a well-ventilated area.
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2
Place the map, fully unfolded, on the plastic sheet.
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3
Brush water seal liberally over the entire map, as if painting the map.
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4
Allow the water seal to become slightly dry and tacky (about an hour), then flip over and brush the other side.
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5
Clothespin the wet map to a clothesline or other hanging line in a well-ventilated area. In 72 hours, the water seal will be completely dry and the map ready to fold up and pack.
