Joe, Thank you for your interest in #7 Mastic. To answer your question, 5-12 hours dry time depending upon temperature, humidity, and application rate. Below are a couple of links with more info on the #7 Mastic. https://www.rcdmastics.com/products/7-mastic.html https://www.rcdmastics.com/images/PDFs/Product-Data-Sheets/RCD_7_Mastic-PDS-010119.pdf

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No. 7 Mastic® Premium Air Duct Sealing Kit Grey

No. 7 Mastic® Premium Air Duct Sealing Kit Grey

Product ID: 42792431

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Details

Material
Elastomeric
Brand
RCD
Style
Thermal
Item Weight
1.8 Pounds
Item dimensions L x W x H
6 x 5 x 5

💧Water borne

🌬️Flexible seal

🛠️915ml sealant

Frequently Bought Together

Description

Seal it, don’t feel it! 🔒

QUICK DRYING - Experience rapid drying for immediate results and minimal downtime.
SEAL THE DEAL - Achieve a professional-grade seal with No. 7 Mastic's premium formula.
LOW ODOR FORMULA - Enjoy a pleasant working environment with our low odor, water-based sealant.
WEATHER RESISTANT - Ensure durability and performance in any climate with our weather-resistant properties.
NON FLAMMABLE SAFETY - Work with peace of mind knowing our sealant is non-flammable and safe to use.

The No. 7 Mastic® Premium Air Duct Sealing Kit includes a 915ml can of high-quality air duct sealant, a 2-inch mastic brush, a can opener, and a red shop towel. This premium sealant dries quickly to form a tough, flexible seal that is water borne, low odor, weather resistant, and non-flammable, making it ideal for both professional and DIY applications.