HV Duct High Velocity Duct Sealant

Buy in Bulk and Save!

Price Per Unit: $4.58

Price Per Box: $4.12

HV Duct is a high-performance, fire-rated acrylic sealant designed for sealing high-velocity air ducts and seams. It offers excellent adhesion, flexibility, and weather resistance, making it ideal for various construction and industrial applications. It is easy to use, non-toxic, and meets "Green Star" environmental criteria.
Vendor: Adheseal
Availability: In Stock

Physical Properties

Type of product: Acrylic polymer
Curing system: Moisture loss
Density (specific gravity): 1.5
Clean up: Water
Application temperature: 5°c– 35°c
Storage: Cool dry between 5°c—32°c
Service temperature: -5°c— 80°c
Movement capability: ± 5%
Tack free(@25°c): 15-20min
Chemical resistance: Excellent to water, detergent solutions, diluted acids & alkalies and oil for short periods.
Ignitability index as1530.3: 11
Spread of flam index as1530.3: 0
Heat evolved index as1530.3: 0
Smoke developed index as1530.3: 3
Cure speed: 4—48 hours
Shelf life: 24 months
Voc (californian south coast air quality management rule 1168): 22gm/lt
Colour: Grey
Test certificates to as: As/nz 1530.3 –1999

Shipping & Delivery

$15.95 shipping on all orders nationwide for most products

HV Duct High Velocity Duct Sealant

Vendor: Adheseal

HV Duct High Velocity Duct Sealant


Vendor: Adheseal

HV Duct High Velocity Duct Sealant

Size: 450g
Colours: Grey
Package Type: Single Buy

HV Duct is a high-performance, single-component acrylic sealant specifically designed for sealing high-velocity air ducts and seams. It is non-slump, paintable, dust-proof, weather-proof, flexible, and offers excellent adhesion to most construction surfaces, including polystyrene foam. HV Duct has been fire tested to AS1530.3, achieving a Smoke Developed Index of 3, making it a safe and reliable choice for fire-rated applications.

Key Features:

  • Paintable
  • Water clean-up
  • Excellent adhesion to most common building products
  • Retains flexibility
  • Fire tested to AS1530.3
  • Ready to use – single pack
  • Rapid drying
  • Non-toxic, low VOC, meets "Green Star" environmental criteria
  • Inhibits mould and biological growth
  • Compatible with most common building materials
  • Suitable for internal and external applications
  • Joint movement capabilities ±5%
  • Odourless once cured
  • Will not corrode galvanized/zinc coated steel or attack concrete

Acceptable Substrates:

  • Aluminium
  • Metal


  • HVAC and air conditioning ductwork
  • Bus and trailer bodies
  • Sealing metal sheets to ductwork and other construction products
  • Suitable for use with polystyrene foam
  • Compatible with Neoprene Sponge Foam Tapes
  • Aluminium window frames
  • Dust extraction systems


  • Provides a durable, flexible, and fire-resistant seal
  • Easy to apply and clean up with water
  • Versatile for various construction and industrial applications
  • Safe and environmentally friendly with low VOC content
  • Resists mould and mildew growth
  • Suitable for both indoor and outdoor use
  • Accommodates joint movement without cracking or losing adhesion
  • Ensures clean air quality in HVAC systems

Application Guide:

  1. Surface Preparation: Ensure surfaces are clean, dry, and free from contaminants. Use a two-wipe process with a suitable cleaner/solvent for impervious substrates.
  2. Priming (Optional): If needed, apply Adheseal 50A primer (non-porous) or 2001 primer (porous) to joint areas.
  3. HV Duct Installation: Apply at temperatures between 5°C and 40°C. Cut the nozzle at a 45° angle, insert the cartridge into a caulking gun, and apply in a steady, continuous bead, ensuring good contact with both sides of the joint. Tool off with a moistened spatula within 5 minutes.


  • Do not apply below 5°C
  • Do not expose to continuous water flow
  • Not suitable for wet or damp conditions, or totally confined spaces
  • Not recommended for aquariums, adhering mirrors, structural glazing, composite panels, underwater applications, or below-grade applications

Alternative Products

Need Help with HV Duct High Velocity Duct Sealant?

Need more information about this product? Hit the button below and reach out to one of our experts now.

Recently Viewed Products