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Lockport Mills, Inc.
Thermal and Acoustical
INSULATION
Dept C.
Lockport, N. Y.
Insulation
Moisture-Resistant--Chemical treat ment, combined with natural protective coating on cotton fibres, enables cotton to effectively resist moisture. Prevents rot and mildew.
Smooth Texture--No sharp particles to irritate the skin.
Flexible--Cotton batt may be ex panded or contracted to fit any enclosure.
Easy to Warehouse and Handle. Offers far more "compressibility." Requires
one-third/the trucking and warehouse space of ordinary insulation.
Five featured types to meet every insu lation need: (I) OPEN BLANKET backed by tough, waterproof, asphalt-coated kraft paper to form an effective vapor barrier. (2) ENCLOSED BLANKET. Insulation completely enclosed in enve lope, asphalt-coated paper on one side, porous or "breather" type paper on other. (3) OPEN ALUMINUM FOIL. All the features of Open Type 1 plus the extra value of aluminum foil backing. Effective vapor barrier . . . stops 90 per cent of radiant heat. (4) ENCLOSED ALUMINUM FOIL. Superior in insula tion plus values and thermal efficiency. (5) DOUBLE FOIL, aluminum foil on top and back, plus superior Lo-K Blanket efficiency for tops in insulating value.
Thermal Conductivity--The "k" value for cotton is 0.24 Btu/br/sq ft/degree F/inch. (See table.)
Light Weight--Weight of 1 cu ft is % lb. (See table.)
Flame-Proofed--Withstands 1800 blow torch heat.
Simple and Economical to Install. Saves from 25 to 40 per cent in costs.
Designed to Maintain Maximum Utility.
Resists all types of deterioration. Won't
sag or settle. Packaged in Rolled Form. Thicknesses--inches: 1, 1}, 2, 3, 3%.
Width--16, 20, 24 in. centers. Lengths: Standard from 12 ft up.
INSULATING VALUE OF VARIOUS INSULATORS*
The coefficients of conductivity (k value) are expressed in Btu per hour per square foot
per degree Fahrenheit per I in. of thickness.
Type of Insulation
wc?u#r
Cotton: Insulating Batt.................. .875 Rock Wool: Fibrous material made
from rock............. ...................... 10.00 Mineral Wool: Fibrous material
made from mineral slag............... ,... Glass Wool: Fibrous material made
from glass slag........ ...................... 1.50 Rigid Insulation made from sugar
cane fibre........................................ 13.50 Chemically treated wood fibre be-
tween layers of paper........ ........ 3.62 Eel grass between layers of paper. . 3.40 Stitched and creped expanding
fibrous blanket.............................. 1.50 Shavings: Various from planer___ 8.80 Corkboard: No binder added........ 7.00 Rigid insulation made from wood
15.90 Rigid fibre board made from shred-
ded wool and cement................... 24.20
Compiled from Chapter 9, 1954 Edition. b indicates temperature conductivity.
** Value 0.24
0.27
0.27
0.27
0.33
0.25 0.25
0.27 0.41 0.27
0.33
0.46
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Insulation
Mundet Cork Corporation
7105 Tonnelle Ave.
insulation division
North Bergen, N. J.
Manufacturers of Corkboard, Cork Pipe Covering. Compressed Machinery Isolation Cork.
Natural Cork Isolation Mats, and all kinds and varieties of Cork Specialties, also 85 per cent Magnesia Insolation in pipe covering & block form.
Complete Insulation Services for High and Low Temperature.
Atlanta, Ga. Baltimore 30, Md.
Cincinnati 2, Ohio Dallas 10, Tex.
Mundet Branches
Detroit 38, Mich. Houston 11, Tex. Jacksonville 2, Fla. Kansas City 1, Mo.
Los Angeles (Maywood) New Orleans 16, La. New York 17, N.Y.
Philadelphia 39, Pa.
St. Louis 9. Mo. San Antonio, Tex. San Francisco 7, Calif.
Mundet Distributors are Located in the Following Cities--Names and Addresses on Request
Albany, N. Y. Bakersfield. Calif. Beaumont, Texas Bloomfield, N. J. Buffalo, N. Y. Chicago, III. Denver, Colo.
Erie, Pa. Hartford, Conn. Johnson City, Tbnn. Mobile (Pritchard),
Ala.
New Haven, Conn. Norfolk, Va. Oklahoma City, Okla.
Pittsburgh (Mt. Leb anon), Pa.
Sacramento, Calif. St. Paul, Minn. Salisbury, Md. Salt Lake City, Utah San Diego, Calif. Savannah, Ga.
Seattle, Wash. Stockton, Calif. Tucson, Ari2.
Tulsa, Okla. Watsonville, Calif. Wilmington, Del. Youngstown, Ohio
Natural Cork--Cork in its natural state consists of minute hermetically sealed cells containing "dead" air. Approxi mately 200,000,000 cells per cubic inch. Cell walls are resinous, resilient, and im pervious to the passage of air. There is no "free" air to conduct heat or moisture and no capillary attraction.
LOW TEMPERATURE INSULATION
Mundet "Jolntite" Corkboard
Natural cork is ground into V. in. to % in. granules and compressed under heat in moulds to produce Mundet flat or shaped corkboard. Air spaces between granules are eliminated by the pressure and the milled resin in the cell walls cements the mass into a homogeneous structure retaining the properties of natural cork.
Mundet Corkboard meets U. S. Government Master Specifications. Its heat transmission is guaranteed not to exceed .29 Btu when tested in accordance with Bureau of Standards regulations. In actual cold storage practice, this figure may be safely reduced to .27 Btu. Sold in standard 12 in. x 36 in. sheet. Standard thicknesses, V in., 1 in., V/2 in., 2 in., 3 in., 4 in., 6 in.
Mundet "Jointlte" Cork Pipe Covering
Protects all types of low temperature lines. Made in 3 thicknesses, with com plete line of standard covers, suitable for pipes carrying sub-zero to 50 F tem perature.
HEAT INSULATION 85% Custom-Molded Magnesia
The new Mundet plant for the manu facture of 85per cent magnesia insulation makes available the most modern plant facilities for the production of heat insu lation in pipe covering and block forms.
Engineering and Specification Service
Our engineering department is at the. service of Architects and Engineers, to assist and advise in the preparation of specifications. This service is available without obligation.
Mundet Contract Service
Covers the complete installation of our
{iroducts, in accordance with best estab-
ished practice. Divided responsibility is avoided. Materials and workmanship are guaranteed. Send for new catalog.
Sttlton of Mundet Moulded Cork Pipe Covering with Fitting. The pipe covering is made in sections 36 in.
tong, to fit all sizes of pipe.
We manufacture a full line of insula tion products for temperature ranges up
to 1900 F, including "Tri-Calite" cal cium silicate pipe covering and blocks; and "Type 19" high temperature insula
tion. Other products are Mundet AntiSweat and "Dri-Mag" insulations.
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