BOSS - M0051 - 334 Minimal Expanding Foam Gun

Item Number: BOSSM0051  MFR Part Number: M0051


Minimal Expanding Foam Gun
see more


Boss® 334 Window & Door Minimal Expanding Gun Foam Is A One-Component, Ready To Use Polyurethane Foam, Formulated To Seal The Gap Around Window and Door Frame and The Rough Opening. Boss® 334 Expands To Generate An Effective Seal, and When Used Properly Is Proven Not To Distort or Bow Window and Door Frames.

  • Installing Of Window and Door Frames
  • Filling Of Cavities
  • Sealing Of All Openings
  • In Roof Constructions
  • Creation Of A Soundproof Screen Mounting and Sealing Of Window and Door Frames
  • Connecting Of Insulation Materials and Roof Constructions
  • Application Of A Sound Proofing Layer On Motors Improving Thermical Isolation In Cooling Systems

  • Aama 812-04 Approved Cfc Propellant Free Excellent Adhesion On Most Substrates (Except Teflon,Pe and Pp)
  • High Thermal and Acoustical Insulation
  • Very Good Filling Capacities
  • Excellent Mounting Capacities Excellent Stability (No Shrink or Post Expansion)
  • Very Precise Application Due To The Foam Gun System
  • Low Pressure Build, Reducing The Chance Of Bowing
  • Voc Compliant

California residents: see Proposition 65 Warning

Weight0.9 Pounds (Lb)
Width13 Inches (In)
Height8 Inches (In)
Country of OriginCHN
Length13 Inches (In)
Service Temperature-40°Fto200°F
Application Temperature40°F to 115°F (4.4°C to 46.1°C)
CoverageNone specified
Dry TimeNone specified
Flash PointNone specified
Shelf Life12 months from date of shipment
Solids ContentNone specified
Storage TemperatureBelow 120°F
UV ResistantNo
Tensile Strength15 psi
ApplicationReady to use polyurethane foam, formulated to seal the gap around window and door frame and the rough opening.
CompositionFoam Gun
Fire RatingNone specified
For Use WithBOSS 334 Gun Foam
FunctionsApplying Boss 334 Gun Foam
RatingsNone specified
Size13 1/4" x 7" x 2 1/8"
StandardsWill achieve a Sound Transmission Class (STC) of 58 when applying it in accordance with ASTM C-919 “Standard Practice for use of Sealants in Acoustical Applications”.
Temperature Range40°F to 115°F (4.4°C to 46.1°C)
TypeGeneral Purpose
ViscosityNone specified
UL ListedNo
UL RecognizedNo