BOSS - 03970GY10 - 125-03 Multi-Seal Construction Sealant, Grey

Item: BOSS12503
MFG: 03970GY10
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Boss® 125 Multi-Seal™ Building/Construction Sealant Is A Multi Purpose, One Part Sealant, Formulated with USP Technology. This Unique Sealant Is Free From Solvents and Isocyanates. It Cures On Exposure To Atmospheric Moisture To Form A Highly Durable Flexible Sealant.

Boss® 125 Multi-Seal™ Has Been Formulated To Offer Outstanding Primerless Adhesion To Most Common Building Materials Including Vinyl, Aluminum, Steel, Concrete, Wood and Glass. It Can Be Applied and Tooled Under Most Weather Conditions. This Sealant Is Paintable with Most Latex Base Paints.


  • Wide Temperature Gunnability; Can Be Applied In Any Season, Excellent Sub-Zero.
  • Primerless Adhesion To Damp and Non-Porous Surfaces
  • Voc Compliant In All 50 States
  • Qualifies For Leed Credits
  • Ease Of Use, One-Part Adhesive Sealant, No Mixing Required
  • Good Weatherability - Virtually Unaffected By Sunlight, Rain, Snow, Ozone, and Temperature Extremes
  • Good UV Resistance and Color Stability
  • Long Life Reliability; Cured Sealant Stays Flexible Without Tearing, Cracking, Drying Out, or Becoming Brittle.
  • With Its Non Slump Properties, Can Be Used In Vertical, Horizontal and Overhead Joints
  • Non-Yellowing and Non-Staining
  • Non-StreakingPaintable with Most Latex Base Paints* (Except Translucent)
  • Free From Solvents and IsocyanatesBonds To Kynar 500

California residents: see Proposition 65 Warning

Features and Specification

Weight 0.800000
Package Length 5.875000
Package Height 11.250000
Package Weight 9.600000
Package Width 7.875000
Ratings TT-S-000230C; ASTM C920 Class 25
Service Temperature -40°F to 200°F (-40°C to 93.33°C)
Shelf Life 1 Year from the date of shipment
Length 2.000000
Viscosity 400 g/min
UPC 787930125033
UL Recognized No
UL Listed No
Type General Purpose
Width 2.000000
Size 10.1 Ounces
Solvent No
Solids Content > 98%
UV Resistant Yes
Standards TT-S-000230C, Type II, Class A; ASTM C920 Type S, Grade NS, Class 25, Use NT, G, M, A, and O; CAN/CGSB 19.13-M87
Storage Temperature >90°F (>32.22°C)
Temperature Range -40°F to 200°F (-40°C to 93.33°C)
Tensile Strength 180 psi
Cubic Measurement 0.026000
Color Gray
Dimensional Weight 4.000000
Coverage Not Provided
Composition Ultra Synthetic Polymer
Comments/Notes Can Contribute Credits
EAN 0787930125033
Brand BOSS®
Base Polyether
Application Multi-Purpose, One Part Sealant Formulated With Usp™ Technology To Offer Outstanding Primerless Adhesion To Most Common Building Materials, Even When Wet Or Damp! Comes In An All-Weather Plastic Cartridge To Never Slow The Job Down.
Dry Time 7 Days
Application Temperature -35°F to 140°F (-37.2°C to 60°C)
Height 11.250000
Functions Sealant
For Use With Vinyl, aluminum, steel, concrete, wood and glass
Flash Point 200° C
Fire Rating Not Provided


picture_as_pdf msds sheet

picture_as_pdf specification sheet