Masterclock MDN User Manual – 2013.05.07
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CLEANING THE LENS
The following cleaning agents have been found to be
compatible with the Polycarbonate and Acrylic lens.
Manufacturer's instructions should be followed.
Formula 409™
(Clorox Co.
Top Job™ (
Proctor and Gamble)
VM and P grade Naphtha Joy™
(Proctor and Gamble)
Windex w/Ammonia D™
(Drackett Products)
Palmolive Liquid™ (
Colgate Palmolive).
FOREIGN SUBSTANCE REMOVAL
The use of the the following products should help remove
foreign substances from your Masterclock clock or device:
Butyl Cellosolve
(For removal of paints, marking pens,
lipstick, etc.)
The use of adhesive tape or lint removal tools work well for
lifting off old weathered paints.
Kerosene, naphtha, or petroleum spirits
is generally
effective to remove labels, stickers, etc. When the solvent
will not penetrate sticker material, apply heat (hair dryer) to
soften the adhesive and promote removal.
Gasoline should never be used.
JOB SITE PRECAUTIONS
We recommend that devices be removed from the wall and
stored face up in their protective shipment bags during
painting and construction.
New construction and renovations frequently require that
the job site be cleaned of any excess mortar, paint, sealant,
primers or other construction compounds. Only
recommended cleaners should be used to clean the
polycarbonate lens. Contact with harsh solvents such as
methyl ethyl ketone (MEK) or muriatic acid can result in
surface degradation and possible crazing of the
polycarbonate.
When the device is first installed, glazing compound and
masking tape adhesive can be easily removed from the lens
by applying VM & P Naphtha or kerosene with a soft cloth,
followed immediately with a thorough soap and water
cleaning.
