There are many things that make your wiper blades deteriorate - dust, abrasives, road grime, bug juice, sunlight, dirt, saltwater, acid rain and extreme temperatures. Over time, the rubber deteriorates, the wiper blades become less flexible and the end result is wipers that can’t do their job properly.
You may not realize your wipers aren’t working efficiently until it’s too late. Check them regularly so that you’re always assured of having the best possible visibility if a sudden downpour strikes. Don’t forget to check the health of your car’s rear wiper either. Also check the washer pump, hoses and fluid.
Always try and park in a garage, or underneath some sort of cover to protect your wipers (and your car!) from the elements - but avoid trees. Bird droppings and/or resin is harmful. Don’t use your wiper to clear mud or soil from the windscreen either.
Regularly wipe the rubber squeegees with a soft cloth to remove grime. Should your windshield be covered in ice or frost, especially during our icy cold Namibian winters, rather use an ice scraper instead of your wipers. A good precaution is to lift them away from the windshield when you park your car for the night during winter times.