Foster 40-20LO is an acrylic copolymer emulsion coating specifically formulated to seal the surfaces of substrates. When used over duct liner insulation it will seal and re-surface the insulation, retarding release of loose fibres. The dried film is resistant to the growth of mould and mildew. As a result, when used in HVAC duct systems building occupants may enjoy a work space free of the odour problems often associated with contaminated systems. It is ideal for sealing surfaces after mould remediation has been completed.
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