Acoustical Sealant Caulk
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Acoustic Sealant Caulk
Acoustical sealant is the final step for achieving an air-tight seal for any soundproofing project! It's rated against mold, mildew, and flame spread. Use Acoustic Sealant Caulk to seal nook, cranny, or crevice to boost your STC rating!
Features
- Latex-based, permanently flexible acrylic polymer used to seal gaps and improve sound ratings
- Improve STC ratings in wall constructions
- Adheres to wood, metal, concrete, gypsum board, and most other building substrates
- Environmentally safe formula packaged in post-consumer recycled material
- Working time: 10-15 minutes
- AMOUNT NEEDED: 1 case of acoustical sealant will do an estimated 3000 sq ft of room, assuming a 1/4" bead and 1 layer of drywall (1032 LF)
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Specs
Specs
| Size | 28oz/tube, 1 case (12 tubes) |
| Linear Feet per Tube | 1/8" bead - 343 LF 1/4" bead - 86 LF 1/2" bead - 21 LF |
| Color | White |
| Weight | 12.8 lbs/Gal |
| Temperature Rating | 40°F to 100°F |
| Shelf Life | 2 years |
Material Testing
Material Testing
| Tested Properties | Performance |
|---|---|
| Flammability | Flame Spread Index = 0 | Smoke Developed Index = 0 |
| Service Temperature Range | -20°F to 150°F (200°F max) |
| Mold and Mildew Resistance | Pass |
| pH | 7.5 |
| Viscosity | 170,000 cps |
| VOC Compliant | 42g/L |
| Solids Content | 80% |
STC Ratings (ASTM C919)
| Drywall Finish | STC | Details |
| No Caulk | 29 | Uncaulked edges will result in sound leakage |
| Single bead at the perimeter of one base layer | 49 | Partial sealing results in sound leakage along the top layers |
| Two beads, one under each base layer of gypsum board | 53 | Sealing all layers results in the best STC performance |
Installation Instructions
Installation Instructions
- Apply to dry, clean surfaces that are free of grease and oils.
- Cartridge applied with a caulk gun.
- Coverage depends on size of the bead: 1/8" bead (343 ft), 1/4" bead (86 ft), 3/8" bead (38 ft), 1/2" bead (21 ft).
- Clean with water while the caulk is wet. Scrape off dried caulk with a putty knife.
- Do not apply outside if rain is expected within 12 hours. Not intended for underwater use.
Common Product Uses
Common Product Uses
- Acoustical sealant is absolutely key for almost any architectural soundproofing project. Learn more about how to soundproof any room.
- Around any penetrations or cutouts in gypsum board.
- Make sure your walls are soundproof by sealing around the perimeter (unsealed residential wall STC rating 30-32; sealed residential wall STC rating up to 38).
- When soundproofing a ceiling, seal around the perimeter of your 5/8" gypsum.
- If you lay down a soundproof subfloor, use sealant to seal around gaps, seams, and the perimeter.
- Repair cracks and seal gaps in rattling drywall and plaster.
- Anywhere you have a seam that needs to be sealed.