• White plastic container of black elastomeric flashing sealant for stopping leaks around chimney flashings in home improvement projects
1 1
In Store Only IN-STORE ONLY

Chimney RX Black Elastomeric Flashing Sealant

Chimney RX Black Elastomeric Flashing Sealant

SKU: 403462

Shop All Chimney rx
Add to Favorites
$53.94
Durable black elastomeric sealant for leak-proof chimney and roof repairs.
only 3 left in stock
Chimney RX Black Elastomeric Flashing Sealant is specially formulated to provide permanent adhesion to asphalt shingles, aluminum flashing, brick, and various chimney and roofing materials. This elastomeric sealant is ideal for stopping leaks around the base of chimneys, stacks, vents, and for sealing around skylights. It remains flexible over time and offers an easy brush-on application for convenience. For optimal curing, it requires at least 12 hours of dry, clear weather. The black color blends seamlessly with roofing surfaces, and each 1/2 gallon container covers approximately 14 square feet, making it a reliable choice for durable roof repairs. Model Number: 300054
View full details

Technical Specs Technical Specs

Overview
Chimney RX Black Elastomeric Flashing Sealant is specially formulated to provide permanent adhesion to asphalt shingles, aluminum flashing, brick, and various chimney and roofing materials. This elastomeric sealant is ideal for stopping leaks around the base of chimneys, stacks, vents, and for sealing around skylights. It remains flexible over time and offers an easy brush-on application for convenience. For optimal curing, it requires at least 12 hours of dry, clear weather. The black color blends seamlessly with roofing surfaces, and each 1/2 gallon container covers approximately 14 square feet, making it a reliable choice for durable roof repairs. Model Number: 300054
Other Tech Specs

Customers Also Viewed

Illustration of a hand truck tilted back with three stacked red cardboard boxes of varying sizes ready for transport.

Flexible Pickup & Delivery

Find a lower price on an exact item? We'll match it. Some exclusions apply.

Learn More
Shield outline in black containing a large red checkmark, representing safety and trust in home improvement and tools.

Authorized Dealer

We are an authorized dealer of several top brands, providing high-quality products with unmatched service.

Learn More
Two red brushstroke shapes forming a stylized heart outline against a transparent background, symbolizing care or love.

Family-Owned

We are a fourth-generation family-owned business built on community, trust, and family values.

Learn More
Illustration of a house outline with a red heart shape integrated above the Hartville Hardware Lumber name, symbolizing community commitment in home improvement.

Price Pledge

We will price-match items our customers find at local competitors for less money on in-store and online purchases.

Learn More