CPC-431 EMCaulk Conductive Caulk

  • SKU: CPC-431
  • Stock Status: In stock


Experience the power of EMCaulk Electrically Conductive Acrylic Latex Caulk – the go-to choice for top-notch electrical continuity and long-term electromagnetic shielding. This premium sealant is versatile, working wonders on both interior and exterior surfaces. Its flexible, durable, and water-resistant properties ensure an airtight seal, safeguarding against environmental elements. From windows and doors to trim and siding, EMCaulk guarantees exceptional protection with easy cleanup and the option for painting after curing. Trust EMCaulk for superior performance in sealing gaps, cracks, joints, and more.


Product Description


EMCaulk is a quality sealant that can be used on a wide variety of interior and exterior surfaces. Forms a flexible, durable, airtight, water resistant seal that offers protection from environmental conditions. Designed to seal gaps, cracks, joints, and seams around windows, trim, doors, siding, penetrations, hardboard and flashing.

Surface Preparation: Surface must be dry and free of contaminates. Mold or mildew should be removed with a mild bleach cleaning solution and rinsed thoroughly. Only apply when sealant surface and air temperature are above 40°F. Do not apply on surfaces above 120° F or when rain is expected.

Application: Cut nozzle at a 45° angle. Joint not to exceed 1/2” in width. Use backer rod for joints deeper than 1/2”. Tool or smooth bead within 15 to 20. Sealant maybe removed and tools cleaned with soap and water. Depending on climatic conditions, allow 4 to 6 hours curing time prior to painting. Full cure should be reached 10 days, dependent on temperature and humidity.

Clean up: Clean hands and tools with soap and water. Clean excess caulk with a damp cloth.


  • Durable seal against both environmental and electromagnetic leakage
  • Suitable for both new construction and repair situations
  • Paintable and rated for interior and exterior use
  • Soap and water cleanup

Specifications Overview:

  • Vehicle: Acrylic Latex Polymer
  • Pigment: None
  • Solids: Approximately 80%
  • Weight per Gallon: 16.7 ± 0.5
  • Specific Gravity: 2.0 ± 0.5
  • Service Temperature: 0º to 160ºF
  • Temperature Application Range: 40ºF to 95ºF and substrate not hotter than 120ºF.
  • Freeze Thaw Stability
  • Flash Point: None
  • Shelf Life: 12 months when stored at 50ºF to 80ºF
  • Coverage: 10.1 fl oz: 54 linear ft. at a 3/16” bead
  • Odor: Mild Acrylic
  • Tooling Time: 10 to 15 Minutes
  • Tack Free Time: 60 Minutes


  • Interior
  • Exterior