Greenglue Soundproofing compound Pail (bucket) 18,9l

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🛠 Application and coverage

In our experience, the easiest way to apply the product is with a regular wide-toothed notched trowel – a special applicator is therefore not necessary.

Each pail corresponds to approximately 23 tubes of Green Glue (0.83L per tube).

With the recommended use (2 tubes per plasterboard of 1.2 x 2.4 meters), one bucket will cover approx. 34 m².

📄 Datasheets and reports

• UL Flame and Smoke Generation – Green Glue (2016)
• CARB 310 VOC Emission – Green Glue Sealant
• BPD3 Green Glue
• Green Glue LEED report v2.0

ℹ️ Product information (manufacturer text)

Green Glue is a water-based, viscoelastic damping compound with very high performance. No other product we know of offers similar cushioning properties, and it offers a very good cost/performance ratio when used in standard building materials such as plaster and wood.

• Non-toxic
• No mixing required
• Easily applied with a standard grout sprayer
• Low application cost
• Easy to push out – less strain on the user

🧱 Walls, ceilings and floors

• Improved sound insulation
• Extra good insulation in the low-frequency range
• Extensively lab-tested
• Eliminates short-circuit risk in walls with sound rails
• Provides top performance in e.g. double stud walls
• Reduces structure-borne sound
• Low cost – high performance

🏠 Floor

• Reduced step sound
• Better airborne sound insulation
• More affordable than many floor treatments
• Reduces structure-borne sound

🎵 Other

• Highly effective in elevator shafts, technical rooms, stages, etc.
• Great for DIY and OEM speakers – up to 20x higher damping than MDF alone

📊 STC/Rw improvements with Green Glue

Green Glue is a viscoelastic damping compound that is applied between two layers of plaster or other rigid material. This reduces vibrations and significantly improves sound insulation. According to test data from TMSoundproofing, Green Glue provides the following improvements:

• Standard wooden stud wall (2×4, 16 “OC, 2 layers of 5/8” plaster):

  • Without Green Glue: STC 40

  • With Green Glue on one side: STC 52 (~75% improvement)

  • With Green Glue on both sides: STC 55 (over 80% improvement)

• Staggered stud wall:

  • Without Green Glue: STC 50

  • With Green Glue on one side: STC 58 (~65% improvement)

  • With Green Glue on both sides: STC 62 (~75% improvement)

• Double stud wall:

  • Without Green Glue: STC 61

  • With Green Glue on one side: STC 69 (~65% improvement)

  • With Green Glue on both sides: STC 73 (over 75% improvement)

These figures show that Green Glue can improve the STC value by up to 10-13 points, which corresponds to a significant reduction in sound transmission.

📉 Low-frequency performance

Green Glue is particularly effective in the low frequency range (below 125 Hz), where traditional STC measurements often fail to capture improvements. Test data shows that Green Glue can reduce low-frequency sound by up to 12 dB compared to identical wall constructions without Green Glue.

🏠 Floor and ceiling applications

In floor and ceiling constructions, Green Glue can also improve sound insulation.

• Floor: Reduction of impact sound by an average of 8.5 dB, improvement of IIC by 7 points and STC by 6 points.

• Roof structures: Significant reduction of structure-borne sound and improved airborne sound insulation.

📈 Comparison graphs

For visual comparisons of sound insulation with and without Green Glue, we refer to the following resources.

• Green Glue Data and Comparison Tests – TMSoundproofing

• Green Glue Noiseproofing Compound Data Sheet (PDF)

These resources contain graphs and detailed test results that illustrate the effect of Green Glue in different constructions.

🔍 Important considerations

• STC limitations: Standard STC measurements cover frequencies from 125 Hz and above. For low-frequency noise (e.g. bass sounds) it is important to consider additional measures such as decoupling, such as our highly effective DreamScreen ProSilence clips.

• Cost vs. performance: Although Green Glue may be more expensive than adding an extra layer of drywall, it offers better performance, especially in the low-frequency range, and may be more cost-effective when space savings and installation costs are taken into account.

• Installation: For optimum performance, Green Glue should be applied between two rigid layers (e.g. fiber plasterboard) and not used as an adhesive or sealant. It is important to follow the manufacturer’s instructions carefully.