Caulking Compounds: Even though not particularly suitable for HVAC apps, specified caulking compounds may be used to seal compact gaps and penetrations in ductwork. Selecting a compound with the mandatory overall flexibility and warmth resistance is vital for making certain helpful and sturdy seals. Sure, you may paint ductwork, but https://puflexibleducting47913.getblogs.net/67997901/the-best-side-of-pu-ducting-tdi