LD410 Duct Sealant

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LD410 Duct Sealant is a single-part gun grade duct sealant. The formulation is based on an emulsion acrylic polymer system, which gives a firm, but flexible seal in low movement joints.


LD410 has been designed for the
permanent sealing of low movement
assembly joints in low, medium and
high pressure ductwork installations
to prevent loss of air pressure. When
correctly applied, the product is
capable of sealing to the air leakage
requirement of Class C to HVCA
standard DW 144.

Not recommended for continuous contact with moisture, or
external use where moisture is likely to be present prior to
sealant cure. Do not use in contact with bituminous material.
Do not expose to water until fully cured, or attempt to abrade
when cured. Do not over paint until a surface skin has

Safety data sheet must be read and understood before use.

  • Prevents air leakage in low, medium and high pressure ductwork
  • Can be used to meet requirements of Class C to HVCA standard DW 144
  • Water based: especially suited for safe use in confined spaces
LD410 Safety Data Sheet (en-GB).pdf Safety Data Sheets
LD410 Technical Data Sheet (en-GB).pdf TDS