BOSS - 03866BR10 - 334 Minimal Expanding Gun Foam, 24 oz.

Item: BOSS33424
MFG: 03866BR10
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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 Sound Proof 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

Features and Specification

Weight 1.800000
Package Length 11.023600
Includes Straws and Adaptors
Package Weight 21.600000
Package Width 8.661400
Ratings Flame Spread - 10; Smoke Developed - 30
Service Temperature -40°F to 200°F (-40°C to 93.3°C)
Package Height 10.551200
Length 2.500000
Shelf Life 1 Year from the date of shipment
UPC 787930334244
UV Resistant No
Viscosity Not Provided
UL Listed No
Type General Purpose
Tensile Strength 15 PSI
Temperature Range -40°F to 200°F (-40°C to 93.3°C)
Width 2.500000
Storage Temperature <70°F (21.1°C)
Standards ASTM E-2112, ASTM283, ASTM E-331, ASTM E-547, ASTM C-1620, ASTM E-84 UL 723 Flame Spread 15, Smoke Developed 35
Solvent No
Solids Content Not Provided
Size 24 Ounce
UL Recognized Yes
Cubic Measurement 0.026900
Composition Polyurethane Foam
Comments/Notes Can Contribute Credits
Color White
Dry Time 12 HOURS
Brand BOSS®
Base Polyurethane foam
Application A Ready To Use Polyurethane Foam, Formulated To Seal Gaps And Cracks. Expands To Generate An Effective Seal, Without Bowing Frames, Or Overexpanding Beyond The Intended Void.
Dimensional Weight 7.000000
Application Temperature 40°F to 115°F (4.4°C to 46.1°C)
EAN 0787930334244
For Use With 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 soundproofing layer on motors Improving thermical isolation in cooling systems
Height 7.430000
Functions Sealant
Flash Point -21° C
Fire Rating Not Provided


picture_as_pdf msds sheet

picture_as_pdf specification sheet