181 DUCT SEALANT
Premium Water-Based Mastic for HVAC Systems
Seal and Insulate Your HVAC Ducts with 181 DUCT SEALANT from Vapco Products. This high-quality,professional-grade mastic is designed for use on all types of metal ductwork, flex duct, and fiberglass duct board. Its water-based formula is nonflammable and safe for both indoor and outdoor applications.
Key Features and Benefits:
- LEED EQ 4.1 Compliant: Contributes to healthier indoor air quality.
- Excellent Flexibility: Accommodates movement and vibration in HVAC systems.
- Superior Adhesion: Forms a strong, durable seal to prevent air leaks.
- Mold and Mildew Resistant: Helps maintain a clean and healthy environment.
- Low VOC: Minimizes harmful emissions for a healthier indoor environment.
Ideal for:
- Sealing metal ductwork
- Sealing flex duct
- Sealing fiberglass duct board
- Low and high-velocity HVAC systems
Ensure optimal performance and energy efficiency in your HVAC system with 181 DUCT SEALANT from Vapco Products. Order yours today!
Part Number; Size Description
- 181DS-G 1 gallon 2/cs Blue Lid = Fibered, Grey Color Sealant
- 181-DS-GE 1 gallon 180/pallet White Lid = Fibered, White Color Sealant
- 181-DS-W 1 gallon 2/cs
- 181-DS-WE 1 gallon 180/pallet
Seal Your HVAC Ducts with Precision for Optimal Performance
Rigid Fiberglass Air Duct:
- Assemble Sections: Follow the manufacturer’s instructions to connect the fiberglass air duct sections.
- Apply Base Coat: Apply a 3-inch wide, 10-mil thick band of duct sealant to the duct board.
- Embed Fiberglass Scrim: Place a 5-mil fiberglass scrim with a 20×10 weave into the wet sealant.
- Apply Top Coat: Apply another 10-mil coat of duct sealant over the embedded scrim.
Flexible Air Duct/Metal Duct Application:
- Prepare Joints: Using a brush or putty knife, apply duct sealant to a minimum thickness of 20 mils to the male section of the spiral duct or to both fittings in a rectangular duct.
- Join Sections: Quickly join the sections while the sealant is wet (within approximately 15 minutes).
- Secure with Screws: Secure the joint using sheet metal screws placed as close to the joint head as possible (approximately 1/2 inch or less).
- Seal Exterior: Apply a 3-inch band of duct sealant to the outside of the assembled joint, covering the head and sheet metal screws.
- Allow to Set: Let the sealant set for approximately 48-72 hours.
- Pressure Test: After the sealant has set, pressure test the system for leaks to ensure a tight seal.
Tips for Optimal Results:
- Follow Manufacturer’s Instructions: Always refer to the specific instructions provided by the duct sealant manufacturer.
- Work Quickly: For flexible duct and metal duct applications, ensure prompt joint assembly while the sealant is wet.
- Use Quality Sealant: Choose a high-quality duct sealant designed for the specific application.
- Properly Secure Screws: Ensure that the sheet metal screws are securely fastened to prevent leaks.
DANGERS & PRECAUTIONS:
Read and understand the product’s label and Safety Data Sheet. Do not mix with strong acids. Prevent from freezing. Avoid excessive inhalation of vapors. Do NOT handle or use this product until all safety precautions have been read and understood. Keep out of the reach of children. Provide general, adequate ventilation. If used as a spray or airborne, a respirator may be needed. Wear safety glasses. Wash hands thoroughly after handling.
