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AMERICA'S HEATING & COOLING STORE.™
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PM21 Mastic Sealant
Virginia KMP PM21
1 Gallon Bucket of Thermal Mastic Duct Sealant



Product has been discontinued.
Please call us for a suitable alternate product.

800-865-5931
Mon - Fri 8:30am - 5:00pm Central

Thermal mastic compound is used to professionally seal duct work, and in any application in which enhanced surface to surface heat transfer would aid in system or component performance such as expansion valve and thermometer sensor bulbs.  Sealing duct work saves money on heating and cooling costs by preventing air leaks.

Also available in a 7.5oz tube and 5 gallon bucket.

Characteristics

  • Stable between -50°F to 220°F (-46°C to 100°C).
  • Increases heat transfer between surfaces 4 times over mechanical mounting alone.
  • Replaces solder for heat transmission.
  • Available in 3 convenient sizes.

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  Phone
(800) 865-5931
Monday to Friday
8:30am - 5:00pm Central
  Mailing Address
1901 N. Clybourn Avenue
Suite 200
Chicago, IL 60614
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