Henry 0.90-Gal. 209 Elastomastic Sealant-HE209142 - The Home Depot


Model # HE209142

Internet # 100002730

Store SKU # 100916

0.90-Gal. 209 Elastomastic Sealant

Henry 0.90-Gal. 209 Elastomastic Sealant

This item has been discontinued.
The Home Depot no longer carries this specific product.

$37.60 / each
  • Formulated with UV inhibitor to withstand harsh UV damage
  • Seals leaks on dry, wet, or even under water
  • Lifetime warranty - Premium rubberized formula


Model # HE209142

Internet # 100002730

Store SKU # 100916

Henry 209 extreme wet patch is a premium, rubberized, SEBS modified, asphaltic sealing compound with excellent adhesion. Henry #209 is suitable for flashings and a wide variety of waterproofing uses, especially at moving joints where its flexibility and elasticity make it superior to standard plastic cements. Glossy black, easy spreading, and non-sagging, it may be applied from 1/4 in. thick to a feather edge.

California residents: seeProposition 65 information

  • Warranted for lifetime of roof
  • Highly adhesive in wet and dry conditions
  • Compatible with the broadest variety of roofing and construction materials
  • Rubber modified
  • Glossy, black, easy spreading, non-sagging
  • Durable and flexible- recommended for vertical metal applications
  • Use with 183 repair fabric for professional results
  • Provides up to 12-1/2 sq. ft. of coverage at 1/8 in. thick
  • Apply with a roofing trowel, putty knife or caulk gun

Info & Guides

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Assembled Depth (in.)  6.5 in  Assembled Height (in.)  7.5 in 
Assembled Width (in.)  6.5 in  Product Size (oz.)  134 
Cement Type  Flashing  Cold applied  Yes 
Commercial / Residential  Commercial / Residential  Hazardous Code  No Air 
Returnable  90-Day  Roofing Product Type  Sealant 
Sealant Type  SBS 
Warranty / Certifications
Manufacturer Warranty  We, the manufacturer, warrant only that this product is free of defects, since many factors which affect the results obtained from this product. We will replace at no charge any product proved to be defective within 12 months of purchase. 


Rated 4.2 out of 5 by 9 reviewers.
Rated 5 out of 5 by Good Stuff Very thick waterproofing material. Works like tar. You'll need a trowel. Don't bother with a brush. Way too thick December 10, 2014
Rated 5 out of 5 by This product stopped my leaks under water and through snow I purchased this product for my dads cottage. His roof was leaking down onto his sun porch when it rained so he could not sit out and enjoy the rain. Plus it was damaging his patio and furniture below. The associate at the store said that the 209 was the best and longest lasting product to stop leaks. So I purchased it and it applied easily through the water and stopped it immediately . I used what was left of the gallon on a leak I had over the winter. I mover the snow out of the way and applied the 209 in the cold and it easily went on again. Neathe my fathers or my roof has leaked since!! June 5, 2013
Rated 5 out of 5 by this product is the best , when they say stops leaks even in the rain believe it. i had leak in my roof , i found it when rained went home depot got some Henry slap baam it stop the leak. great stuff. April 15, 2014
Rated 5 out of 5 by works well in the rain had freak rain storm with very high winds which blew off several roof shingles got gallon of 209 elastomastic sealant used in rain to put new shingles which helped seal new shingles to old did not blow off still holding April 8, 2014
Rated 5 out of 5 by Problem solver My husband used roofing screen in combination with the elastomastic sealant to seal the roof of our patio cover. It is no longer raining indoors and I am thrilled. Thank you! July 25, 2014
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