JBL Application Engineered Series Application Manual page 45

It is highly recommended to leave the grille backing unpainted. If you must add some color to the backing,
give it a very quick spray dusting of the color, making sure not to clog the pores in the backing material.
Reattach the backing securely using 3M Super 77 or similar spray adhesive, sprayed onto the back of the
metal grille (spray only a minimal amount onto the backing because otherwise the backing could tend to
pick up dust from the air).
If the backing is damaged in the removal process it will be necessary to order a replacement – either from
JBL or from a third-party foam or grille cloth provider -- if indeed a backing is required for your application.
Painting Weather Resistant AE and PD Models
Most AE and PD models are available in two levels of weather resistant models. Weather resistant models
are signified by a –WRC or –WRX suffix to the standard product model.
Important:
Simply painting a non-weather-resistant speaker is NOT acceptable protection for
outdoor use.
Internal Protection – The WRC and WRX models are constructed with necessary additional internal
protection, including: full internal surface sealant to protect the wood from the inside, special corrosion-
resistant internal hardware, weather protection for the cones, protective coating for the metal parts on the
back of the drivers, protective coating on crossover network, waterproof glues and special grille backing
that breaks up driving rain. For speakers that will be used outdoors, always start with a WRC (DuraFlex
finish) or WRX (fiberglass finish) as the base model to insure proper construction for outdoor use.
Painting WRC Enclosures -- Models with the WRC-level of weather resistant are coated with an extra-
thick DuraFlex finish. Follow the same instructions in the sections above, which apply to all models with
DuraFlex finish.
Painting WRX Enclosures – WRX-level weather resistant models have a fiberglass finish. Follow
standard procedures for painting over fiberglass.
For further information on weather resistant JBL models and the technical definition of the
–WRC and –WRX process go to the "WEATHER RESISTANT Configurations
for AE and PD Series" section available in this guide and also online at the JBL Professional
Website: www.jblpro.com.
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