Caulking Compounds: Though not exclusively suitable for HVAC applications, sure caulking compounds can be used to seal smaller gaps and penetrations in ductwork. Picking out a compound with the required adaptability and heat resistance is vital for making certain effective and sturdy seals. This chemical resistance can make PVC ducting https://dantekylxj.wikitidings.com/6456519/an_unbiased_view_of_polyurethane_ducting