Dispensing Gun for Noiseproofing Compound Pails This dispensing gun is for use with Quiet Glue Pro 5-gallon pails and Green Glue Noiseproofing Compound 5-gallon pails. This dispenser holds the same amount of product as 1 standard tube of noise proofing compound. l The same application rate of two dispenser-loads per 4x8 sheet of drywall applies.