In a joint project with Dow Corning, our OPACI-COAT-500® was put against the ropes in a very tough round of 4-Sided Structural Glazing tests. Testing done by Architectural Testing in Everett, WA.

A curtain wall mock-up was made with our product with the sole purpose of testing the adhesive bond of the coating to the glass and to the sealant.  Assembly was with fully tempered glass in a standard IGU and OPACI-COAT-500® on the #4 surface.  Then glazed into place with Dow Corning's 995 structural silicone.

Evaluation was conducted in accordance with:

ASTM E 283-04, Test Method for Determining Rate of Airflow Through Exterior Windows,

Curtain Walls and Doors Under Specified Pressure Differences Across the Specimen.

ASTM E 330-02, Test Method for Structural Performance of Exterior Windows, Curtain Walls and Doors by Uniform Static Air Pressure Difference.

ASTM E 331-00, Test Method for Water Penetration of Exterior Windows, Curtain Walls and Doors by Uniform Static Air Pressure Difference.

This is where it all got very cool.

ASTM E 283 "Air Filtration", all results were <0.01 cfm/ft2.

ASTM E 331 "Water Resistance" with 15 psf, no leakage at all.

Wait for it, this is the cool part.

ASTM E 330 "Uniform Performance", positive and negative loads held for 10 seconds @ 155 psf, no glazing failure.  In fact, the equipment wasn't able to produce enough load to cause failure. So they decided to cause failure and observe what happens.

A negative 100 psf load was applied, and forced breakage of the exterior lite was accomplished by striking the exposed edge of the glass. The bond of the silicone coating was unaffected.

And

A negative 50 psf load was applied, and forced breakage of the exterior lite was accomplished by firing a steel ball at the lower corner. The bond of the silicone coating was unaffected.

I'd say that's pretty cool. :)

Here are some photos from the test as well as a great video showing the pillowing out and in of the glass, yet no failure.

4SSG OC500 Testing II from ICDCoatings on Vimeo.

1 Comment