Product Description
FIBER REINFORCED, WATER BASED – 181 DUCT SEALANT is mastic that is ideal for use on all types of metal ductwork, flex duct, and fiberglass duct board.181 Duct Sealant is fiber reinforced and nonflammable in both wet and dry states. This versatile formula can be used indoors/outdoors, and on low to high-velocity systems.
181 DUCT SEALANT is a premium, professional-grade WATER BASED mastic ideal for use on all types of metal ductwork, flex duct, and fiberglass duct board. Fiber-reinforced and nonflammable in both wet and dry states, indoor or outdoor use, and on low to high-velocity systems.
Features and Benefits
- Indoor and Outdoor
- LEED EQ 4.1 Compliant
- Excellent Flexibility
- Excellent Adhesion
- Mold and Mildew Resistant
- Low VOC
Part Number; Size
- 181DS-G
- 1 gallon
- 181-DS-GE
- 1 gallon
- 181-DS-W
- 1 gallon
- 181-DS-WE
- 1 gallon
Directions:
RIGID FIBERGLASS AIR DUCT: Assemble sections to manufacturer’s instructions. Apply a 3” side by 10 mil band of duct sealant to duct board. Embed a fiberglass scrim (5 mils, 20 x 10 weave) into the base coat and apply another 10 mil coat over the scrim.
FLEXIBLE AIR DUCT/ METAL DUCT APPLICATION: Using a brush or putty knife, apply duct sealant at a minimum thickness of 20 mils to the male section of the spiral duct or to both fittings in a rectangular duct. Effect joint while sealant is wet (within approximately 15 minutes) and secure with sheet metal screws applied as close to the joint head as possible (approx. 1/2” or less). Apply duct sealant to outside of assemble with a 3” band of sealant, thoroughly covering the head and sheet metal screws. Allow it to set (approx. 48-72 hours) before pressure testing system for 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.
Equivalent Part Numbers: 181DSG
