XtraBond®9550 - Advanced Polymer Sealant

XtraBond®9550 is a high performance, one component, permanently flexible, easy to use, advanced multi-purpose polymer sealant. XtraBond®9550 cures rapidly when exposed to atmospheric moisture to form a durable bond and can be applied in a wide range of temperature and weather conditions (-35°F to 140°F).


  • High Performance Applications
  • Metal Architecture
  • Curtain Walls & Joints
  • Coated Roof Metals


  • +/- 50% joint movement
  • Non-Yellowing
  • Environmentally friendly
  • No Solvents
  • VOC and CARB compliant
  • Can Be Painted in 2 hours
  • Fast Cure at a wide range of temperatures
  • Extremely Flexible Formula
  • Superior Adhesion to a variety of construction substrates
  • Compatible with SBS Flashing
  • Wide application temperature range (-35°F to 140°F)


Meets Federal Specification TT-S-00230C, Type II, Class A; ASTM C-920, Type S, Grade NS, Class 50, use T, NT, G, M; Type non-sag. Tested in accordance with ASTM C-1382 for use in EIFS Systems.

Technical Specs

Skin Time Less than 20 minutes @ 77°F/ 50% RH
Tack Free Time Less than 1 hour @ 77°F / 50% RH
Cure Rate 1/4” Bead per 24 Hrs
VOC 9 g/L (0.14%)
Elongation @ Break 650%
Hardness (shore A) 25 +- 5
Movement Capability 50%
UV Rating No discoloration or change in appearance after 2500 hours of UV
Lap Shear 190 psi
Tensile Strength 205 psi
Staining None
Service Temperature -75°F - 300°F
Low Temp.  Flexibility Pass -10 deg°F. ¼ inch mandrel
High Temp. Flexibility Up to 425°F for short periods
Sag None

Compliant with the following national, state and district VOC regulations:

US Environmental Protection Agency

California Air Resources Board SCM Districts

South Coast Air Quality Management District

Maricopa County, AZ

Northeast Ozone Transport Commission


This product is offered in hundreds of colors using our Custom Color Matching & Mixing System.

For current color offerings, please visit the Online Color Matching Program.

NOTE: This product also qualifies for our Private Label Program.


The XB9550 is available for the following industries

Packaging & Pictures

drum pail tube This product is available in the following configurations:

  • 10.1 oz cartridges: Twist-On Nozzles
  • 4.5 gal in a 5 gal pail
  • 52 gal in a 55 gallon drum

Other packaging is available upon request

Limited Lifetime Warranty

This product is guaranteed to give satisfactory performance if applied in accordance with the label directions. Liability to Premier Industrial Supply, Inc. (Premier) is limited to a full refund of the purchase price or product replacement if product is proven defective. Premier shall not be liable for loss or damage, whether direct, consequential or incidental. There are no other warranties expressed or implied including the implied warranty of merchantability or fitness for a particular purpose.