Pontiac 1957 Owner's Manual page 57

Convertible Top Materials-The top should be washed frequently
with neutral type soap suds and luke warm water. A brush with soft
bristles 'should be used. Generous quantities of clear water should be
applied over the entire top to remove any trace of soap which might
remaIn.
If the top requires additional cleaning after using
soap and water a
mild foaming type cleanser can be used. A small hand brush having
soft or nylon bristles should be used for scrubbing. Add water to the
cleanser until a soapy consistency is obtained and clean approximately
two square feet of the top at one time. Remove the cleanser after
scrubbing with a sponge. Care must be exercised to keep the cleanser
from running down and across the body finish which may cause
streaks. After the entire top has been cleaned rinse the top generously
with clear water to remove any trace of cleanser which might remain.
If desired the top can be supported from the under side during the
scrubbing operation.
Volatile and other clear cleaners, naphtha, gasoline, or household
cleaners and bleaching agents should not be used.
CARE OF THE CONVERTIBLE BACK WINDOW
The back curtain on the Convertible Coupe is provided with pliable
plastic window which is of large size to allow ample visibility at the
rear of the Convertible Top. The plastic material at this location
makes possible a larger window than can be utilized if glass were
used. Due to the texture of the plastic window, it is susceptible to
scratches and abrasions; caution must be used in its cleaning and care.
1. When removing road dust, use a soft cotton cloth moistened with
water and wipe cross-wise of the window.
2. To clean the back window, use cold or tepid (not hot) water and
a mild, neutral soap suds. After washing, rinse with clear water
and wipe with a slightly moistened clean soft cloth.
CAUTION: Never use solvents such as alcohol or volatile
cleanin~ a~ents
on the plastic window. These liquids may have a
deterioratin~
effect on
the plastic and, if spilled, may spot the painted finish on the n :ar body
panels directly below the rear window.
3. In removing frost, snow, or ice from the plastic back window
DO NOT USE A SCRAPER. In an emergency, warm water may
be used. Use care that this warm water does not contact the
actual glass windows or windshield.
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