Full polymer silicone leather waterproofing

Full polymer silicone leather waterproofing

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High performance leather waterproofing begins at the wet-end of the tanning process. Our Densodrin® and Densotan® solutions are trusted and proven, and our latest additions – Densodrin® Polymeric Generation and polymeric Densotan® – enable tanners to improve their environmental footprint while delivering the same high-performance leather waterproofing customers expect.


Stahl Densodrin® Polymeric Generation with polymeric Densotan®

Meet our newest leather waterproofing products: Densodrin® Polymeric Generation and polymeric Densotan® that together transform leather waterproofing. This is because they work every bit as well as conventional water-soluble waxes and silicones – but have a much lower environmental impact.

The result is the first 100% polymer silicone waterproofing solution. Employing Densodrin® Polymeric Generation with the polymeric Densotan® auxiliary, the Stahl Full Polymeric Waterproofing Process enables tanners and shoe manufacturers to benefit from full polymeric neutralization, re-tanning and waterproofing.


Significant environmental benefits

Using Densodrin® Polymeric Generation with polymeric Densotan® has much lower impact on the environment:


Same or better waterproofing performance

Yet despite being better for the environment, Densodrin® Polymeric Generation with polymeric Densotan® delivers the same or better waterproofing as the best conventional agents:


Process benefits for tanners

Switching to a full-polymeric solution brings production and process benefits too. These include less frequent equipment cleaning, higher yields because polymer silicones fill blemishes and thicken hides, a reduction in processing time of up to 30%, and lower energy bills through lower temperatures (40-45 OC vs 60-65 OC) and fewer washes.


Brand benefits for tanners and shoe manufacturers

Switching to a full-polymeric solution also brings brand and marketing benefits:


Standard and high waterproof performance with Densodrin® EP, HP and DP

Densodrin® EP and HP for high waterproof performance and Densodrin® DP for standard waterproof performance are polymer based fat-liquors with special emulsifier systems containing silicone. 


Stahl: the world #1 in waterproofing and water-resistance

Stahl is taking polymeric waterproofing to a new level with Densodrin® Polymeric Generation and polymeric Densotan®, enabling tanners to produce waterproof leathers via a completely polymeric waterproofing process. No other company can offer this.

With the incorporation of BASF’s Leather Chemicals division and Densodrin® and Densotan® brands, Stahl today offers the broadest and most advanced range of waterproofing products on the market.


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Full polymer silicone leather waterproofing
Joachim Henkmann
Global Marketing - Business Unit Leather Chemicals