39. Soundproof - 3

DIRT SPORTS (Dec/2013)

In Japan

Type : Toyota HiAce for Motorcycle Transporter

Appoication

Application : Ceiling, Under Front seats

Front ceiling

Back ceiling

Under front seats

Comments from owner:

Previously, the stereo volume needed to be set at 40 to be heard while driving, but now, I can hear it at volume 33.

Heat from the engine has decreased under the seats, making it easy to control a comfortable temperature.

• He recommend coating GAINA in Motorcycle Transporter.

38. Soundproof Case - 2

Apartment in Tokyo

Rental Apartment

Tokyo, Hachioji, Japan

Inside

Coated area : Downstairs interior
ceiling, wall,

Measure the sound coming from the upstairs with the sound level meter
Sound: spoon, ball,  music from a CD player, vacuum cleaner, a flushing toilet

Ball, Spoon, CD player,  Sound Meter

Validation Result
                   Before Coated    Immediately     After Dried   The average effect
Normal       28~30 db             29~31 db         28~30 db       -
Ball             45~48 db            40~60 db          36~48 db      8 db
Spoon         60~63 db             53~57 db         55~56 db      7 db
CD player   45~48 db            37~42 db          37~40 db      8 db
Toilet          45~48 db            43~45 db          36~38 db      9.5 db
Vacuum      43~45 db            45~46 db          41~43 db      2 db
 cleaner

Construction management's comments:

• Life sounds are approximately 8db mitigation
• There is more effectiveness after GAINA has dried
• Is effective even without being coated on both sides of the upper and lower floors
• I was surprised at the effect of GAINA

The company decided to apply GAINA in all the other apartments.