Adhesive For Biomedical, Electronic and Aerospace Cleanrooms

M-1 CR Cleanroom Adhesive & Sealant

M‑1CR (cleanroom) is solvent-free, extremely low VOC, moisture curing, polyether adhesive-sealant designed for application in areas where outgassing and solvents are not tolerated. It releases virtually no molecular air contamination and contains no isocyanates. M‑1CR will not shrink upon curing, will not discolor when exposed to UV light, and can not "out-gas" on damp surfaces as is common with urethane sealants. The product has resilient "elastomeric" properties and excellent adhesion to most construction materials. M‑1CR is designed for environments where molecular airborne contamination can impact human health or cleanroom manufacturing operations and is specified for biomedical, electronic and aerospace cleanrooms.

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  • 100% VOC compliant
  • Tough elastomeric bonds
  • Solvent free
  • Fast settings
  • Self fixturing
  • High adhesion
  • Paintable within 24 hours. (Test and evaluate all paints before application, Alkyd and oil based paints may dry slowly.)
  • Gun grade, no special tools or mixing required
  • Can be applied at temperatures as low as 32°F (0°C)

Applicable Performance Standards

  • ASTM C-920, Type S, Grade NS, Class 25, Uses NT, T, M, G, A, and O
  • Federal Specification TT-S-00230-C Type II, Class A
  • Corps of Engineers CRD-C-541, Type II, Class A
  • Canadian Standards Board CAN 19, 13-M82


  • 50 gallon open-head pump drums
  • 5 gallon pump pails
  • Sausages available on request
  • 10.1 oz Cartridges