BOSTIK 915

Harmonization Code : 3404.90.00.00 | Artificial waxes and prepared waxes : Other

BOSTIK 915

Main features

  • 35% Dynamic Joint Movement
  • 685% Cured Elongation
  • 60-Minute Tooling Window

Product Description

Bostik 915 is a one-component, moisture-curing polyurethane sealant and adhesive for joint sealing and bonding applications. It cures to a tough, flexible rubber with +/-35% dynamic joint movement capability and 685% elongation after the documented cure condition, supporting joints that require substantial movement accommodation. A 60-minute tool/work time provides a practical installation window before skin formation, while cured performance is listed from -40 to 150 deg F. The product is used for expansion and control joints, door and window perimeters, wall penetrations, roofing details, metal roofs, gutters, roof tiles, flashing, and sheet-metal sealing within the manufacturer's construction scope.

Key features

  • 35% Dynamic Joint Movement: Demonstrates +/-35% joint movement capability under the documented movement test.
  • 685% Cured Elongation: Provides 685% elongation at break after the documented 14-day cure condition.
  • 60-Minute Tooling Window: A 60-minute tool/work time supports joint placement and finishing.

Applications

Expansion and control joints; door and window perimeters; wall penetrations; roofing, metal roofs, gutters, roof tiles, flashing, and sheet-metal sealing within the documented construction scope.

Product Family

BOSTIK 915

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Color
The color
White, Black, Light Gray, Stone, Aluminum Stone, Limestone, Bronze, Medium Bronze, Terra Cotta, and Tan
Physical Properties
Skin Time
4 hours
Mechanical Properties
Elongation
Elongation is the process of lengthening something. It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks. It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
685 %

Additional Information

Technical properties

As-supplied / before-processing properties

PropertyValueUnitMethod / condition
Tool / work time60minTypical
Skin time4hoursTypical
Cure time2 to 7days77 deg F; varies with relative humidity
Flow / sag / slump0.3inTypical
Shelf life1yearUnopened cartridge; store at 10 to 32 deg C
Technical properties

Final-state properties

Typical cured properties after 14 days at 77 deg F and 50% RH unless otherwise noted.

PropertyValueUnitMethod / condition
Hardness42Shore AASTM D2240
Modulus at 100%65psiASTM D412
Tensile strength at break133psiASTM D412
Elongation at break685%ASTM D412
Adhesion peelGreater than 5piwTT-S-00230C / ASTM C794
Joint movement capability+/-35%TT-S-00230C / ASTM C719
UV resistancePassASTM C793
Service temperature-40 to 150deg FCured service range

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