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How To Apply Green Glue Compound With Our Dispensing Gun

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Installation Video For Pails Of Green Glue Compound

Quick Bits of Info

Smell
Green Glue Compound does have a slight smell, but it is less noticeable than paint and begins to fade as soon as the drywall is attached. Green Glue Compound is rated as a low VOC product so people with sensitivity to odors do not need to be worried about using Green Glue Compound. Removing tubes from the work area will also significantly reduce any lingering smell. 		  Not An Adhesive
Green Glue Compound is very sticky, so it is best to keep it either in the tube or on the drywall. While Green Glue Compound is sticky it is definitely not a self-adhesive and should never be used without the assistance of fasteners. 		  Cleanup
Green Glue Compound is water-soluble and can be washed off your hands, tools, or other objects using soap and water. For the best results, use a soap that contains pumice. The popular GOJO cleaner is a recommended product.
Green Glue Compound Is Not Too Thin
Green Glue Compound will not run off drywall when applying. It has the consistency of ketchup, but the adhesive qualities of Green Glue Compound prevent it from running rapidly when in a vertical position. 		  Coverage Requirements
No specific coverage pattern is necessary to ensure excellent results.  Apply at least semi-evenly over the correct amount of square footage per tube and you will succeed. 		  Larger Nozzle Opening
A larger tip opening on the nozzle to speed up application will still yield the same results as applying Green Glue Compound with a smaller bead.

Preparing and Loading Our Dispensing Gun

   
Cut End Of Nozzle
Using a razor knife or sheet metal snips, cut a 3/8" bead off the end of the nozzle. 		  Dip Cone Nozzle Into Bucket
With the recoil T-lever pushed down against the recoil thumb plate, submerge the orange cone nozzle cap about 2" into the Green Glue Compound in the bucket. There is no reason to ever let the barrel of the dispensing gun touch the glue. 		 
Press Recoil Thumb Plate and Pull T-Lever
Press the recoil thumb plate down while holding the gun firmly in your hand, and pull back on the recoil T-lever, drawing Green Glue Compound into the dispensing gun, until full.

QUICK TIP:  If the Green Glue Compound does not seem to be loading into the dispensing gun very well then cut a larger bead opening on your nozzle cap.

Different Levels of Coverage

   
1 tube per 4' x 8' sheet, minimal coverage   2 tubes per 4' x 8' sheet, normal coverage   3 tubes per 4' x 8' sheet, maximum coverage

Four Steps To A Successful Green Glue Compound Installation

   

Dispense The Green Glue Compound
With your drywall on the floor or leaning against a helper, apply Green Glue Compound from your caulking gun in a random pattern (see possible patterns below). Be sure to leave a 2" perimeter so you can hold the drywall while lifting it into place.

GOOD IDEA:  Have a five gallon bucket of water handy to leave the dispensing gun in.  If you don't dip more than the nozzle into the Green Glue Compound bucket then leaving the nozzle end under water will keep the Green Glue Compound from drying for days.

  
Place Drywall Against Wall
Once the drywall sheet is covered with Green Glue Compound, lift it into place against the wall or ceiling. It is important to accurately mount each panel the first time without sliding it around. Drill each sheet of drywall into place entirely before installing the next sheet. To ensure proper spread of Green Glue Compound between sheets, screw sheets from the center outwards. 		 
Screw Drywall To Studs
Do not proceed with a second layer of drywall until you have completely screwed in and sealed the primary layer. The second layer of drywall should be fully attached to the studs with the same screw pattern as the first layer.
 

Other Useful Project Tips:

  • You will notice 5/8" is recommended in all sound rated assemblies. This is for the added mass to help with isolating low frequencies. You can use 1/2", 3/8", or 1/4" as well with Green Glue Compound, but the more mass, the better the overall performance of the assembly.
  • Always leave a 2" border along the perimeter of each piece so that you can hold the drywall while lifting it into place. This will also give Green Glue Compound room to spread when compressed.
  • The most important part of any sound isolation configuration is the sealing of all seams and joints. A good principle to follow when sealing is the "waterproof principle" – if water can get through a crack or gap, sound can, too.
  • The first layer of drywall should be attached using 1-1/4" drywall screws and the second layer should be attached with 1-5/8" or 1-7/8" drywall screws.
  • Deficiency in performance can occur if Green Glue Compound is not properly compressed. Attach the drywall to the wall within 15 minutes of applying the Green Glue Compound to drywall.  Completely screw in each sheet of drywall before moving on to the next.
Seal Your Wall
Once the topmost layer of drywall is attached, seal the wall thoroughly using Green Glue Sealant or a comparable high quality acoustic caulk. Tape and mud your seams as you would normally do, and prepare for your wall finishing. 		 

Cleaning Up The Dispensing Gun

Unlike disposable Green Glue Compound caulking tubes, our dispensing gun must be cleaned after every use. Green Glue Compound is a very sticky product that becomes incredibly difficult to clean up once it has cured. For this reason, it is crucial to fully clean the dispensing gun after each use. This involves dismantling the dispensing gun and using water pressure to remove all Green Glue Compound residue from the cone nozzle cap, barrel, and inner workings of the tool.

NOTE: If your dispensing gun is not properly cleaned after use or submerged in water for short-term storage, the Green Glue Compound residue will cure inside the gun, rendering it useless and damaging it permanently. In this case, there will be no possibility of using the dispensing gun on future projects and you will need to purchase a new one.

While cleanup for the dispensing gun is crucial, it is also very simple.  Don't let this factor deter you from using the Green Glue Compound Dispenser Gun with the bucket system on projects that require larger quantities of Green Glue Compound.

Possible Green Glue Compound Patterns

The above patterns are suggested for demonstration purposes only. There is no correct or required pattern to follow when applying Green Glue Compound.

The red dashed border represents a 'no-apply' area that should be 2" to 3" wide on every panel. This will allow you to physically handle the drywall without getting glue on your hands and will minimize the risk of Green Glue Compound seeping out the edges when being compressed.

Staggering Your Drywall Seams

 
You can avoid sealing your first layer of drywall with caulk and/or drywall mud if you stagger your seams.

First Layer Horizontal, Second Layer Vertical
Hang the first layer of drywall perpendicular to the studs or joists. Hang the second layer parallel to the studs or joists. This is the most common method of staggering the seams.

First Layer Vertical, Second Layer Vertical and Offset
Hang the first layer of drywall parallel to the studs. Hang the the second layer of drywall parallel to the studs as well, but offset it to the right or left by 2' (on a 4' wide sheet). This method is more common on resilient sound clip systems with horizontally attached hat channel.
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