Description

The Hoodliner is a Polyether Urethane Based with a Reinforced Aluminized Facing and Pressure Sensitive Adhesive on application side, thermo-acoustic foam. This product is made to be applied inside the automotive engine compartment to the underside of the hood. Product shall be die cut to shape and placed onto the underhood surface. Adhesive side is smooth, giving complete contact with the underlying surface without any air pockets of channels. Both material and adhesive can withstand temperature ranges between -40°C to +107°C (-40°F to +225°F).

Acoustic Properties

The effectiveness of an acoustical foam is dependent on its ability to convert soundwaves into heat energy. Hoodliner has a combination of open and closed cells to accept sound waves and dissipate them. If all of the foam cells were open, sound waves would simply pass through. Conversely, if all of the foam cells were closed, few sound waves would be absorbed. The acoustic foam in Hoodliner is cast in sheets, achieving consistent resistivity levels throughout the foam. Thus, maximum sound absorption is assured.

Heat Resistive Properties

Hoodliner has a reinforced aluminized facing which provides 97% heat reflection. This reflection reduces heat transfer to the hood and reduces wear to the painted surfaces.

Applications

Hoodliner is used as an automotive engine compartment treatment. It is also used in other applications requiring heat resistive acoustical foams.

Installation

Hoodliner should be cut to the desired size and shape before the release liner is removed. It may be cut with scissors, knife, or die. Remove dust, grease, moisture, and other foreign matter from the application surface. Peel off the release liner. The simplest application technique is to bend the Hoodliner slightly and attach it along its shortest edge.

Appearance:

Gray acoustic foam with aluminized facing

Top Surface:

1 mil Reinforced Aluminized Polyester

Thickness:

0.75″

Weight:

.13 (lb./ft³)

Density:

2.0 (lb./ft³)

Random Incidence Acoustical Thermal Resistivity (R):

2.7 (hr-ft2-deg.F/BTU)

Tensile Strength:

28

Fire Classification:

Meets HBF

Tear Strength:

2.4

Sound Absorbtion Coefficients (Using Reverberation Room Method -ASTM C423-84a and E-795-83 – Mounting A):

0.22 @ 125 Hz
0.42 @ 250 Hz
0.70 @ 500 Hz
0.93 @ 900 Hz
0.87 @ 1 kHz
0.75 @ 1.2 kHz
0.72 @ 2 kHz
0.71 @ 3 kHz
0.70 @ 4 kHz

Temperature Resistance Range:

-40°C to +107°C (-40°F to +225°F)

Description

Dynaplate is a light-weight aluminum constrained-layer vibrational damper. Dynaplate conforms with effort to sheet metal and other hard substrates. Material performance is optimized for temperature ranges between -10°C to +60°C (14°F to+140°F) Material can withstand temperature extremes between -54°C to +170°C (-65°F to +350°F) and is highly resistant to aging.

Acoustic Properties

The acoustic loss factor “n” is used as a measure of ability to damp structure-borne sound. It states how much vibrational energy (in steel sheets for instance) is converted to heat rather than sound. For constructions containing several layers of damping material, the combined loss factor “n comb” is used. The theoretical maximum loss factor is 1 (no vibration). An undamped 1mm thick steel panel has a loss factor of roughly 0.001 at 200 Hz. Dynaplate applied to that panel would increase the loss factor to 0.17 @ +20°C (+68°F) Multiple layers of Dynaplate can be used for significant improvement of sound damping.

Applications

Dynaplate can be die cut to shape and placed onto the body surface after sheet metal cleaning operation and prior to paint system (typically at the sealer application operation) or on painted panels. Dynaplate is used as treatment for metal panels, partitions, ducts, doors, bins, panels etc. in railroad cars, buses, automobiles and ships. It is also used for ventilation ducts, relay cabinets, steel furniture, home appliances, sink units, computer equipment and machine tools and for many other purposes.

Installation

Dynaplate should be cut to the desired size before the release liner is removed. It may be cut with scissors, knife or die. Remove dust, grease, moisture, and other foreign matter from the application surface. Peel off the release liner. The simplest application technique is to bend the mat slightly and attach it along its shortest edge. The mat is then pressed firmly into place, preferable with a roller for larger pieces. This reduces the risk of leaving air pockets, which reduce the sound damping capacity. The temperature of Dynaplate and application surface should not be below room temperature during fitting. Heating the material is not necessary.

Appearance:

10 mil 99.995% pure aluminum with aerospace damping adhesive, craft paper release liner

Thickness:

0.014″ (0.51mm)

Mass:

0.17lb./ft² (0.83kg/m²)

Acoustic Loss Factor @ Temperature (Using ASTM method E756 @ 200 Hz):

0.05 @ +14°F (-10°C)
0.08 @ +32°F (+0°C)
0.11 @ +50°F (+10°C)
0.17 @ +68°F (+20°C)
0.15 @ +86°F (+30°C)
0.13 @ +104°F (+40°C)
0.11 @ +122°F (+50°C)
0.08 @ +140°F (+60°C)

Temperature Range (optimal performance):

-10°C to +60°C (14°F to+140°F)

Temperature Range (resistance):

-54°C to +177°C (-65°F to +350°F)

Chemical Resistance:

Resistant to water and mineral oils

Adhesive Peel Strength (Bond Strength):

12.9 lbs/inch (22.5N/cm) on cold steel

Federal Standards Tests:

FMVSS 302: Meets

Handling And Application:

Material stored at room temperature for best application

Storage Information:

Number of sheets in stack: 200 maximum
Material must be stored horizontally in its wrapping

Step 1: Prep the Surface

Clean the mounting surface with a quick-drying, residue-free solvent. Remove all dirt, grease, oil, wax, moisture and rust to ensure a permanent bond between the Dynamat and the mounting surface.

Step 2: Size and Cut

Using a razor knife or scissors, cut the Dynamat sheet to the desired shape and size (you may find a cardboard or paper template helpful.) Remove the release liner from the back of the Dynamat and apply the Dynamat to the prepared surface. On large surfaces, remove the release liner in sections, working your way down and across the panel.

Step 3: Apply the material

Apply the Dynamat to the mounting surface with a Dynamat roller tool. Take the roller tool and work the Dynamat into all contours of the metal panel. Using a razor knife, poke holes in any air pockets that may have formed between the panel and the Dynamat. Work the air out with the roller tool. Eliminating air pockets ensures lasting adhesion to the panel to give maximum damping effect.

Dynamat will be featured on the new Discovery Channel show “Lords of the Car Hoards,” whose series premier is Monday, March 17th at 10pm/9c. Lords of the Car Hoards features veteran car builder and Hot Rod Guru Rick Dore teaming up with former WWE Superstar Chuck Palumbo to find individuals with hoards of unrestored vehicles. Dore, Palumbo, and the vehicle owner then select one car from the hoard to restore, and use the rest of the hoard for parts to use in the restoration, or sell them to finance the build. Dore and Palumbo know they need to build the best possible vehicle, and they choose to use Dynamat. Veteran car builders know it is essential to use Dynamat in a hot rod build or restoration project for the vehicle to be quiet, cool, and efficient. Be sure to check out Lords of the Car Hoards every Monday Night at 10pm/9c on Discovery, and keep an eye out for all our Dynamat products!

Dynamat wants to congratulate Al Bergler on his induction into the International Drag Racing Hall of Fame. Al started building Hot Rods in 1958 in his parent’s garage, and his style and craftsmanship have shown through his work ever since. This culminated with Al winning the coveted Riddler award in 1964, the first year the prestigious trophy was awarded. Throughout his career in drag racing and car building, Al has always taken the time to do things the right way, and share his knowledge, wisdom, kindness and successes with those around him. From everyone at Dynamat… Congratulations Al!

Dynamat Xtreme Mega Pak
Dynamat Xtreme quiets annoying road noise, improves a speaker’s dynamic range, and makes for a more comfortable driving experience. You can quiet down the noise, and get better sound.

The Dynamat Xtreme Mega Pak is the perfect for any large job. With the Mega Pak you get 9 of our largest sheets of Dynamat Xtreme to damp vibrations, quiet the noise, and get a more solid ride. Install with one of our Dynamat Rollers, and discover the Dynamat difference.

SKU: 10465
Contents: (9) 24″x 48″ (609mm x 1219mm) sheets of Dynamat Xtreme.
Application: Use on rear decks, doors, floors and the floor of your trunk to get more bass, more music, lower road noise and better sound.

Dynamat Xtreme Bulk Pak
Dynamat Xtreme quiets annoying road noise, improves a speaker’s dynamic range, and makes for a more comfortable driving experience. You can quiet down the noise, and get better sound. The Dynamat Xtreme Bulk Pak is the perfect amount of Dynamat Xtreme for any medium to large sized job. With the Bulk Pak you get 9 sheets of 18″ x 32″ Dynamat Xtreme to damp vibrations, and get a more solid ride. Install with one of our Dynamat Rollers, and discover the Dynamat difference.
 
SKU: 10455
Contents: (9) 18″x 32″ (457mm x 812mm) pieces of Dynamat Xtreme
Application: Use on rear decks, doors, floors and the floor of your trunk to get more bass, more music, lower road noise and better sound.