Quick Answer
To waterproof your paper maps, you'll need a clear plastic cover or a laminate, a waterproof adhesive, and a sealant or tape to secure the edges.
Essential Materials
When selecting materials for waterproofing your paper maps, choose clear plastic covers or laminates that are specifically designed for mapping purposes. These covers are usually 5-10 mils thick and can be purchased in various sizes to fit your maps. For example, a 5 mil clear plastic cover from MyTopo.com can protect your maps from water and tears.
Application Techniques
To apply the clear plastic cover, start by trimming the cover to the size of your map using scissors or a craft knife. Next, apply the waterproof adhesive to the edges of the map and attach the cover, pressing out any air bubbles as you go. Make sure to apply even pressure to avoid wrinkles or creases in the cover. For a more permanent seal, use a sealant like silicone or hot glue to secure the edges of the cover.
Edge Sealing
To prevent water from seeping under the edges of the cover, seal the edges with a waterproof tape or sealant. Apply the tape carefully to avoid wrinkles or air bubbles. Alternatively, use a hot glue gun to apply a thin bead of glue along the edges of the cover, pressing it firmly onto the map. This will create a watertight seal that will protect your map from the elements.
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