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Black Duct Wrap

Harry Thompson IVJune 27th, 2019

Johns Manville Microlite Black PSK Duct Wrap

Johns Manville (JM) has introduced a black-coated duct wrap insulation, Microlite® Black PSK (Polypropylene-Scrim-Kraft) Duct Wrap. Like JM’s other Microlite Duct Wrap Insulations, this new insulation is Formaldehyde-free™ and has a facing with a perm rating of 0.02.

Contractors frequently “wrap” the standard silver jacket FSK Duct Insulation around the Ductwork once it’s hung. Then, the owner or General Contractor often has this Insulation painted to blend in with the ceiling which is often black or white. But this voids the manufacturer’s warranty on the Insulation. Johns Manville Microlite Black PSK comes pre-coated in black for aesthetic applications that need high-quality insulation. Manufactured in Winder, GA.
Tape is sold separately and available in black or white. Designed to provide a vapor barrier seal, tear-resistant, and offers a super high-tack, acrylic adhesive that bonds tightly to surfaces. Can be used on applications operating within a wide temperature range: -20°F — 260°F / -29°C — 126°C.

Is it intended for outdoor applications?
No. As with all of our Microlite duct wrap products, it should not be used outside of the building on its own without a pre-applied weather barrier.

Is it cleanable?
Yes, you can use a damp cloth to lightly wipe the facing clean from dust or dirt debris.

Does the product have print on the facing?
No, we manufacture the product without print on the black facing for several reasons, but mainly due to the aesthetic nature of the product and its application. A technical bulletin is available to address any questions or concerns related to the print on the facing itself. Please contact your Johns Manville representative for further information if needed.

Can the black coating come off?
Yes, the coating can become scraped or scuffed if it is rubbed or dragged against an abrasive surface. To avoid damaging the black coating, do not drag the insulation across the ground during installation. There may be some minimal scuffing or discoloration on the facing on the outermost layer of wrap as a result of shipping and handling, but the facing adhered to the inner layers of insulation should not be scuffed.