Bose Virtually Invisible 791 Installation Guide download pdf (Page 14)

REFERENCE

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Using a spray technique

Latex or oil-based architectural paint requires thinning

for use with a siphon-feed spray gun. Set the spray

gun at 30 psi (2.1 bar) for application in a 3- to 5-in.

(7.6-12.7 cm) fan pattern.

The thinning formula depends on the type of paint you

are using.

• For use of vinyl acrylic latex paint, thin as follows:

To 6 parts of paint, add 3 parts of water and mix

thoroughly. Add 1 part of denatured ethyl alcohol

(which breaks down paint particles so they do not

clog the grille) and mix again.

• For use of architectural or automotive paints:

This type of paint should be used by a professional

with the right equipment and technique. This paint

also must be thinned, using a solvent.

• For use of lacquer or enamel spray paint in a can:

No further thinning is needed.

Then:

1. Suspend the grille or place it on a wire screen to

prevent dirt or dried paint particles from blowing

back into the perforations.

2. Apply the paint to the grille surface at a 45° angle.

Then rotate the grille by 180° and repaint it at 45°.

3. Make sure the paint is dry before you attach the

grille to the speaker.

The paint may feel dry to the touch in a few minutes.

However, if alcohol has been added, it may take

several days to fully cure.

Tip: To dislodge a paint clog, blow gently on the

clogged area. If that does not work, immediately wash

the grille with the appropriate solvent. Make sure the

grille is thoroughly dry before repainting.

Piercing a perforation with a sharp implement to remove

a paint clog can cosmetically damage the grille and is

not recommended.

Painting the frame

Before you begin, protect working parts of the speaker

by inserting the template/paint shield that came in the

carton.

Press the edges of the shield against the inside rim of

the speaker until the tabs catch to hold the shield in

place.

This protects working parts of the speaker and helps

keep your paint edge even.

You can use the same conventional spray or roller

equipment used to paint your wall or ceiling and either

latex or oil-based paints, which adhere to the speaker

frame. However, both types of paint can be easily

scratched through careless handling.

CAUTION: Be careful so the paint does not puddle or

run. You may want to use a brush for spreading paint

where needed.

45°

180°

45°

Tab

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Bose Virtually Invisible 791 Installation Guide Page 14

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