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White 16-inch caulk tube labelled Auralex STOPGAP acoustical sealant

Auralex

Auralex STOPGAP Acoustical Sealant Latex Caulk Transparent 16 In 40 ft coverage

SKU CH-5PDS-BK9EY

A transparent latex-based acoustical sealant that covers 40 ft and meets ASTM E84 flammability standards

  • ColorTransparent
  • Reduces sound transmission through partitions with one-part acoustical formula
  • Non-flammable latex caulk meets ASTM E84 flammability standard
  • Transparent 16-inch cartridge covers up to 40 linear feet
  • Single-component product applies easily to construction wall systems
  • Latex-based sealant remains flexible for lasting acoustic isolation

Acoustical Sealant for Wall Partitions

Auralex STOPGAP is a one-part, non-flammable, latex-based caulk formulated to reduce sound transmission in all types of wall partition systems. The transparent sealant comes in a 16-inch cartridge and is designed for construction applications where acoustic isolation is required. It meets ASTM E84 flammability standards for safe installation.

Thermals Noise and Power Draw

As a passive sealant, this product generates no heat, noise, or power consumption during or after application. It remains flexible after curing to maintain acoustic integrity without mechanical vibration or thermal cycling concerns. No electrical connections or active components are involved in its function.

Sustained Load Behaviour

Under continuous structural movement or long-term environmental exposure, the latex-based formula retains elasticity to preserve the sound barrier without cracking or shrinking. It is not suited for buyers who need fire-stopping ratings beyond ASTM E84 or for exterior joints requiring UV-resistant silicone chemistry. The 40-foot coverage per cartridge supports extended sealing runs without reloading.

Highlights

  • Reduces sound transmission through partitions with one-part acoustical formula
  • Non-flammable latex caulk meets ASTM E84 flammability standard
  • Transparent 16-inch cartridge covers up to 40 linear feet
  • Single-component product applies easily to construction wall systems
  • Latex-based sealant remains flexible for lasting acoustic isolation

Specifications

ColorTransparent
BrandAURALEX ACOUSTICS

Questions about this item

How do I apply the 16-inch latex caulk and what is the common mistake?

Cut the tip to a 2.5-inch bead width, run a continuous strip along the joint, then tool it smooth before it skins over; the step most people miss is tooling within the first five minutes so the seal bonds both surfaces.

Will the transparent sealant need recoating or replacement after it cures?

The one-part latex formulation remains flexible and non-flammable per ASTM E84, so it does not require scheduled recoating; inspect joints only if the assembly is dismantled or damaged.

At what point does the 40-foot coverage limit become the bottleneck during a long sealing run?

Each 16-inch cartridge yields 40 linear feet of 2.5-inch-wide bead; once that footage is reached you must open a new cartridge to continue without gaps.

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