Revision context
Document record
This five-page PDF is an application guideline for the Ure-A-Sil roof restoration system over single-ply roof surfaces. The last revision shown in the footer is 9/18/25. It states that adhesion to single-ply substrates depends on the age and condition of each roof, and that field adhesion tests are highly recommended.
The products part covers Silicone 410, High Solids Silicone 412, Aromatic Urethane 508, Urethane Brush-Grade 522, Aromatic Urethane 520, a spunbound polyester fabric and EcoCleaner 925. Entries list viscosity, elongation, tensile strength, volume solids and color.
The installation part covers surface preparation, a primer step with an adhesion test, and flashing of seams, penetrations, curbs and parapet wall details with Urethane Brush-Grade 522. Seams take a minimum dry film thickness of 30 mils. The warranty part says each job must be approved by American WeatherStar, and that a Pre-Project Inspection Report should be submitted before the job starts.
Material changes / notes
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