Wiper Blade FAQ & Maintenance

A windshield wiper has no protective cover, of course. Even when not in use, it sits in its receptacle between the windshield and the hood subjected to the wind, rain and sun, 24 hours of every day, 365 days of every year.

A wiper blade begins deteriorating the very minute it's installed to the vehicle.

Reasons for Deterioration:

Symptoms of Damaged Wipers:

Visible damage
Splitting, cracking, corrosion, deformation, foreign matter buildup and discoloration
Audible damage
Causes noise with blade vibration and chattering
Damage that can be felt
Hardening of the rubber, loose rivets




Replacement Signs Visible on the Windshield

These are the signs of wiper deterioration visible on the front windshield glass. These symptoms will help you determine when a wiper blade requires changing.

Symptom 1: Streaking          Symptom 2: Jumping
Symptom 3: Spotting           Symptom 4: Uneven blade pressure

Windshield wiper blades unavoidably deteriorate with use, so it is best to replace them on aperiodic basis. If you always ensure that your wiper blades are in good repair, you can enjoy a good field of vision and safe field of vision even in inclement weather. Always change your wiper blades at least once per year. Changing wiper blades is a simple task that anyone can accomplish


The Problems and The Causes
Over time sunlight, temperatures and use wear away the ability of wiper blades, causing them to streak, smear, chatter or simply leave un-wiped areas. Listed here are the problems and causes to watch out for.

If rubber blade is
cracked due to 
wear aging . . .
If blade is
deteriorated from
sun, ozone and
pollution . . .
If blade is torn from
ice . . .
If there is too much play in the blade-arm assembly because of worn assembly parts . . .

Streaking - Streaking is the result of rubber that has dried, hardened and cracked. It can also be tree sap, road tar or other substances on the blade rubber.
Worn Rubber - Rounding of the wiping edge of the blade due to excessive use.
Chattering - This is a "chattering sound" resulting when the windshield wiper passes over the windshield. It occurs because of the "permanent set" or "curve" in the rubber. Blades usually become warped while the vehicle is parked and the rubber is stationary.
Split/Torn Rubber - This can be a result of the effect of the sun's ultraviolet rays and the negative consequences of ozone on the rubber causing the rubber blades to split or tear.
Shredded Rubber - This condition is usually caused by the excessive play found in loose fitting or worn adaptors.
Bent Wiper Frame - Washing your car in an automatic car wash is usually the cause of a bent wiper frame.

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