From Checklists, Edition 62
Outdoor, Travel, and Emergency Preparedness Checklists
"WARNING: More plastic coated equipment (knife and tool handles), synthetics (Gore-tex, polar fleece, nylon with waterproof coating), painted/laquereed finishes (bikes, lighters), leather (driving/shooting gloves, handlebar wraps), rubber (gloves, grips, wraps) and plastic ware (like compasses, GPS cases, iPod/music devices, and eating ware) has been ruined by DEET than by animals or rough handling. The contents of DEET or its dispensing agent dissolves synthetic materials. Even when the DEET container is double bagged in plastic zipper locked bags, after traveling for a while, the DEET container/bottle seems to leak and the storage bags seem to acquire at least one tiny hole which allows the liquid to get out. It is wise to try to carry DEET at the lowest point in a bag / pannier / box / container. This is particularly more of a problem on Bicycles and ATVs as they tend to have many more bounces per minute than other forms of transportation (thus a higher risk factor for causing both a DEET container leak and a puncture in the outer container/bag)."
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