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SOUND INSULATION MATERIALS
Installation guidelines
Preparing the engine room
Sound is like water and until the last gap is closed, it will find a way out of the engine room. Therefore it is important to cover as
much of the surface in the engine room as possible and to close all possible leaks. Any small gaps or holes in, between or under the
bulkheads should be filled with flexible sealant, foam or other material. When the ‘engine room’ is in direct contact with the bilge
or other spaces that run through the boat, it is recommended to build bulkheads or a box around the engine.
Fitting the sheets
While fitting the sheets, work around obstacles by cutting the sheet into the right shape and try to fit the puzzle as neatly as
possible before actually sticking the sheets in place. Note that tanks tend to amplify noise. When a tank is in the same space as the
engine, cover the tank in insulation sheets or build a bulkhead between them.
Hatches and air intakes
Hatches and air intakes may leak noise. Hatches can be sound proofed by using an insulation tape between the touching surfaces.
Air intakes however are more difficult to insulate, as the engine needs air for combustion and cooling. Creating a labyrinth or
installing a special damper will generally solve the noise leak without choking the engine.
Sound deadening sheet type GF140S
Absorbing both high and low frequency noise and vibration
These modern light-weight sound deadening sheets are self-adhesive and have
an aluminium face layer.
Specifications
• Dimensions 3.9 ft (120 cm) x 2.6 ft (80 cm) x 1 /16“(40 mm)
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• Weight per plate 12.35 lbs (5,6 kg)
• Temperature resistance up to 284°F (140°C)
Type Description
GF140S
GF140S Sound-deadening glass wool sheet
Sound deadening sheet type PU130S
Ideal for smaller engine installations
These sound deadening sheets have excellent noise and vibration reducing
qualities and come in packs of 4 sheets.
Specifications
• Dimensions 3.3 ft (100 cm) x 1.6 ft (50 cm) x 1 /16” (30 mm)
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• Weight per plate 3.31 lbs (1,5 kg)
• Temperature resistance -22°F (-30°C) to + 194°F (90°C)
PU130S
Type Description
PU130S Sound-deadening sheets (pack of 4 sheets)
58 Engines and around the engines - Want to know more? Visit www.vetus.com