915 sealant is a one-component, smooth polyurethane adhesive capable of dynamic joint movement totaling 70% of original joint geometry (±35%). The sealant cures to a tough, flexible rubber when exposed to moisture present in the atmosphere.
Bostik 915’s all-season formula has physical properties that will remain stable over time. The cured performance temperature range is -40°F to 150°F. Where textured appearance is needed, please use Bostik 916.
FEATURES
- Tenacious bond to difficult substrates
- Permanently flexible
- Miami-Dade approval NOA 17-0329.18, 15-0520.01
APPLICABLE STANDARDS
- ASTM C920, TYPE S, GRADE NS, CLASS 35 USE NT, A AND M
- US Federal Specification TT-S 00230C (COMB-NBS) for one-component sealants as Class A, non-sag
- CARB, SCAQMD, and OTC compliant
- Canadian Specification CAN /CGSB 13-M87
- Miami-Dade County, Florida, NOA : 13.0423.10, 05/24/17
- Miami-Dade TAS 102- Static Uplift Resistance
- AAMA 3
- AAMA 100/200/300 installation requirements
TABLE 1: TYPICAL UNCURED PROPERTIES* | ||
Property | Value | Test Method/Note |
Tool/Work Time | 60 min. | Bostik Test Method |
Skin Time | 4 hours | Bostik Test Method |
Curing Time @77°F (25°C) | 2-7 days | Varies w/relative humidity |
Flow, Sag or Slump | 0.3 inch | Bostik Test Method |
* Values given above are not intended to be used in specification preparation purposes. | ||
TABLE 2: TYPICAL CURED PROPERTIES* (AFTER 14 DAYS CURE AT 77°F AND 50% RH) | ||
Property | Value | Test Method/Note |
Hardness (Shore A) | 42 | ASTM D 2240 |
Modulus @ 100% Elongation @ 25% Elongation | 65 psi 45 psi | ASTM D 412 ASTM D 412 |
Tensile Strength @ Break | 133 psi | ASTM D 412 |
Elongation @ Break | 685% | ASTM D 412 |
Adhesion Peel | >5 piw | TT-S-00230C / ASTM C 794 |
Joint Movement Capability | +/- 35% | TT-S-00230C / ASTM C 719 |
UV Resistance | Pass | ASTM C 793 |
Static Uplift Resistance (concrete roof tile) | 49 | Miami-Dade TAS 102 |
* Values given above are not intended to be used in specification preparation purposes. | ||
