

Duct Seal
Acrylic sealant for professional HVAC duct joints.
A dedicated product for sealing HVAC ductwork in interior and specialist installations.
Why this product
Acrylic sealant for professional HVAC duct joints.
- Designed for HVAC duct joints
- Professional NXT range
- Acrylic chemistry
Applications and substrates
Where Duct Seal fits.
Recommended applications
HVAC ductsAssociated substrates
HVAC ductworkEnvironment
InteriorSpecialistApplication guidance
Clean the duct joint. Seal continuously.
Surface preparation
- Remove residual dirt, contaminants and old sealant; leave the duct joint clean and dry.
Application method
- Apply into the base of the joint, wetting both sides.
- Tool immediately and do not disturb for 24 hours after skin formation.
Usage considerations
- Do not use in continuous water immersion.
- Do not apply if rain or frost is imminent.
Technical information
Duct Seal specification.
Values below are taken from the current official technical data sheet. Actual performance depends on substrate, preparation and site conditions.
- Chemistry
- Acrylic
- Pack sizes
- 300 ml cartridge
- Colours
- White
- Shelf life
- 18 months in original packaging
- Storage
- Store in a dry, well-ventilated place below 30°C.
Tested performance
Technical data.
PropertySpecificationTesting standard
Paste density1.40-1.55 g/ccASTM D 1475
Skin formation5-10 min—
Tack-free time120 minASTM C 679-15
Elongation>500%ASTM D 412
HardnessShore A 30-35ASTM D 2240
Tensile strength>3 kg/cm²ASTM D 412
Restrictions on use
- Do not use in continuous water immersion.
- Do not apply if rain or frost is imminent.
Frequently asked questions
Answers about Duct Seal.
What is Duct Seal used for?
Duct Seal is positioned for hvac ducts. The best fit depends on the surfaces and exposure involved in the job.
Which surfaces are associated with Duct Seal?
The current application map includes HVAC ductwork. Carry out a compatibility test where the substrate or coating is unfamiliar.
Can Duct Seal be used outdoors?
Duct Seal is currently positioned for interior and specialist applications rather than general exterior use.
Enquire 