MDC-10

Sheet metal surfaces transmit noise by vibrating at sound frequencies.   Taking the "ring" out of these surfaces by applying MDC-10 Damping Compound substantially reduces noise transmission.  Treatment is particularly effective on ductwork and roofdecks under roof mounted equipment.

Optimum results are obtained by applying a coating equal to the metal thickness.   MDC-10 can be applied by spraying, troweling or brushing.  The effective temperature range is 32 degrees F to 175 degrees F with maximum and minimum of -45 degrees F to 375 degrees F.  MDC-10 is shipped in 55 gallon drums or 5 gallon pails.

The following information is shown on all shipping containers:

MASON INDUSTRIES, Inc.
DAMPING COMPOUND MDC-10
Decay Rate 45 db/sec @ 75 degrees F
Non-Burning per ASTM-D-635-56T
Passes MVSS-302
Smoke Density Factor 0-ASTM-E84

APPLICATION PROCEDURES:

MDC-10 is shipped at the proper spraying consistency.  If necessary use only water for thinning. Use no solvents.

All surfaces must be completely clean.  Use a primer on steel if it is not "bonderized".

Apply MDC-10 by spraying or troweling.  Spraying is faster.   Use a 4:1 ratio pump type unit dropped into a 5 gallon or 55 gallon drum.  Feed line is 3/4" I.D.  Use a Binks Spray Gun No. 18 equipped with a 1/8" - 1/4" round nozzle or equivalent equipment.  Pressure on pump is 50 psi.  Atomizing pressure is 40 to 50 psi.  Keep gun in water when not in use.  Clean equipment with water after each shift and before material dries.

MDC-10 thickness should be equal to metal thickness.

IMPORTANT:
THE SOUND DAMPING PROPERTIES OF MDC-10 ARE NOT APPARENT UNTIL THE MATERIAL IS DRY.   MDC-10 CURE TIME IS 48 HOURS. 

NON-TOXIC .  NON-CORROSIVE. KEEP FROM FREEZING.