A global leader in antimicrobial protection, Thomson Research Associates (TRA) was established more than fifty years ago in Toronto, Canada. Today, our Ultra-Fresh and Silpure antimicrobial products are used by hundreds of manufacturers in more than 40 countries around the world.
A symbol for lasting freshness and hygiene in textiles and polymers.
Harness the power of natural silver to inhibit bacterial growth in textiles and garments.
Read about Thomson Research Associates – the experts behind the Ultra-Fresh and Silpure brands.
Demonstrate the effectiveness of your treated product in our laboratories.
Learn about our collaborative process.
Discover why our customers trust Ultra-Fresh and Silpure brands.
Browse frequently asked antimicrobial, antifungal, and antibacterial questions.
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