Page 749 - Lewis

748 Acoustical Insulation

Whispermat
Acoustical Foam Insulation

WM1000-25= 9 square feet/sheet WM SERIES WHISPERMAT PHYSICAL PROPERTIES
WM1000-75= 9 square feet/sheet Density..................................................2 or 4 lb./cu. ft. ± 10%
WM-MBW1= 8 square feet/sheet Tensile Strength............................................................33.7 psi
Color ........................................................Silver/Charcoal Gray
Tear Resistance ........................................................4.3 lbs./in.
Compression Set .......................................................10% max.
Clickability .......................................................................Good
Steam Autoclave....................................25% Maximum variance
Thermal Conductivity.........................................................0.25
(Btu-in./hr. x sq. ft. x deg. F)
Flame Resistance .................................UL-94 (self-extinguishing)
Sound Absorption......................................................NRC-0.71
Temperature Resistance........................................-45 to 250° F.
Chemical Resistance.........................................Excellent for oils,
..................................................................alkali and mild acids

WM1000-75

Silver Metallized White Vinyl

1-1/2"
ACOUSTICAL INSULATION Designed to quiet noisy areas onboard. It is especially effective at deadening sound from engines and generators. Also can be used
Stickclip and
White Button
WM-MBW1

FIG 6178

in air ducting systems and as a carpet underlayment (UL-25). Whispermat is constructed by sandwiching a flexible vinyl sound barri-
er between two layers of sound absorbing foam. The side facing the noise is faced with either a metalized mylar or a white vinyl fac-
ing. It will not rot or mildew, is tear resistant and is self-extinguishing (meeting fire requirements of UL-94HF-1). INSTALLATION
TIPS: Installed with contact adhesives, battens, stickclips or screw and fender washers. WM1000-25 is a one pound per square foot
vinyl barrier between two layers of 1/4" foam, faced with reinforced metalized mylar. Weight: 9.25 pounds. WM1000-75 is a one
pound per square foot vinyl barrier between one layer of 1/4" foam and a layer of 3/4" foam, faced with reinforced metalized mylar.
This is the standard for lining engine rooms, engine hatches and generator compartments. Weight: 9.6 pounds. WM-MBW1 is one
pound per square foot vinyl barrier bonded to 1" of foam. The white vinyl facing is designed for easy cleaning and is extremely tear
resistant. This is perfect for large yacht engine rooms and machinery spaces. Weight: 12 pounds. Splicing tape comes in WHITE or
SILVER. Used to splice and seal seams, penetrations and openings. The silver tape is dimensionally stable and flexible to 300°F with-
out discoloration. SC are stickclips which are used with white buttons (INCLUDED with stickclips) to hold insulation in place.
No. Each Color Size Box
WM1000-25* $71.95 Silver 1/2" Th x 24" W x 54" L 10
WM1000-75* 75.65 Silver 1" Th x 24" W x 54" L 5
WM-MBW1* 81.90 White 1" Th x 24" W x 48" L 5
ACCESSORIES
No. Each Description Size Case
Silver $39.80 Silver Tape 3" x 108 ft. 16
White 49.85 White Tape 3" x 108 ft. 20
SC 1.65 pr. 1 Stickclip and 1 Button — 100 pr.
* WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov