Meguiar’s PlastX plastic scratch remover kit – fails at sunshade rejuvenation

Meguiar's headlight rejuvenation kit works as intended on headlight lenses, but fails to give the optical clarity needed for helmet faceshields and sunshades

Meguiar’s headlight rejuvenation kit works as intended on headlight lenses, but fails to give the optical clarity needed for helmet faceshields and sunshades

Scratches on the clear plastic used on helmet faceshields, retractable sunshades and motorcycle windscreens can be infuriating.

I count myself as one of those who’s a tad obsessive-compulsive about handling these items with kid gloves to maintain optical purity as long as possible.  This level of care pays for itself by lengthening the usable lifespan of faceshields.  If you haven’t checked on the price of a replacement, prepare to be surprised at how expensive they are.

For years, I’ve used Plexus plastic cleaner, protectant and polish available in aerosol cans.  I understand this isn’t really a polish (with an abrasive), but an acrylic (?) that fills in minor scratches, and after allowing the spray to dry to a haze and buffing with a soft cloth, the scratches appear to have been eliminated.  (Interesting side note.  A couple of years ago on a ride to the B.C. Kootenays we met a guy running a gas station at the Fauguier Ferry.  In his former employment he worked at a B.C. airport servicing private aircraft and he said their company used Pledge furniture spray wax on plastic windscreens and it was essentially the same as Plexus, but much less expensive.)

Plexus doesn’t work on deeper scratches, something that has appeared on the tinted retractable sunshade of my Nolan N90 flip-up helmet.   Son Chris had purchased a Meguiar’s PlastX polishing kit to rejuvenate the headlight lenses of his household’s Infiniti EX35 CUV.  The kit consists of a bottle of Meguiar’s PlastX and a buffing wheel you attach to an electric drill.

Chris said the polishing kit had miraculously made the Infiniti’s headlight lenses look like new.  He have me the leftover bottle and buffing wheel.

To undertake the plastic polishing job I removed the sunshade, washed it with soap and water and dried it to be sure I was starting with a perfectly clean surface.  I applied a couple of small dabs of PlastX to the buffing wheel, and proceeded to buff the plastic onto the scratched surface.  I did this a few times, removing the haze with a dry microcloth between applications.

No luck.  The buffing didn’t remove the scratches but dulled the area where the polish had been applied.  This procedure made the sunshade less usable.  Before polishing, the sunshade was optically clear except for the vertical scratches resulting from being slid up into the helmet and down again when needed.  Now, with the polishing the sunshade has visible rub spots where the polish was applied with the buffing wheel.

I made one last attempt to apply the PlastX by hand using a soft cloth.  This was unsuccessful in returning the plastic sunscreen to a usable condition.

Bottom line

The Meguiar’s headlight rejuvenation kit (bottle of PlastX and buffing wheel) may do a fine job on bringing back old weatherworn headlight lenses to ‘like new’ condition, but it’s not good enough to remove scratches from a helmet faceshield or sunscreen where a high degree of optical clarity is required.

The Meguiar’s headlight polishing kit sells for about $22.00 dollars at auto supply retailers.



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