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In StockFDS181 - MASTIC (1 GALLON, FIBER-REINFORCED)
Universal

FDS181 – MASTIC (1 GALLON, FIBER-REINFORCED)

SKU FDS181GRAY·Replaces CADS, FDS181WHITE, HARDCASTEQUIVALENT +2
$18.59
In-store price · paid at counter
In Stock at our Dallas counter
Tested before you leave. Free at the counter.
Visit our Dallas counter to purchase
10226 Plano Rd, Suite 104 · Dallas TX 75238
Call (214) 340-9421 Get directions
Open now · Closes 7pm·Mon–Fri 10am–7pm · Sat 10am–3pm
Free part testingBench-tested at the counter
27,000+ in stockToday, on the shelf
4.9 · 512 reviewson Google
Since 199828 years on Plano Rd
Free Part Testing
27,000+ In Stock
4.9 Stars · 512+ Reviews
Since 1998
🏪 In-Store Pickup Only — We do not offer shipping or online ordering. Visit our Dallas location to purchase.
In Stock

Visit our Dallas store to purchase

Call (214) 340-9421Get Directions
In Stock — Pick Up at Our Dallas Store

10226 Plano Rd, Suite 104, Dallas TX 75238

Questions? Call or text (214) 340-9421

Mon–Fri 10 am – 7 pm  |  Sat 10 am – 3 pm

Duct mastic is the best way to permanently seal duct connections and prevent air leaks. This fiber-reinforced version is stronger than standard mastic and meets UL 181 requirements. Brush or trowel it onto joints and seams — it dries to a flexible, airtight seal.

Specs: 1 gallon, water-based, fiber-reinforced, UL 181 A-M and B-M listed, low VOC

Replaces: FDS181GRAY, FDS181WHITE, CADS

Fits: Universal — for sealing metal ductwork, fiberglass ductboard, and flex duct connections

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

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$18.59
In Stock · Dallas counter
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