Conventional and polymeric waterproofing technologies
High-performance leather waterproofing begins at the wet-end of the tanning process. With our Densodrin® product portfolio, we offer both conventional and polymeric technologies for standard and high-performance waterproofing. Our waterproofing auxiliaries for neutralization and dispersion optimize distribution and prepare the leather for further treatment. With the incorporation of BASF’s Leather Chemicals division and Densodrin® and Densotan® brands, Stahl offers the broadest and most advanced range of waterproofing products on the market. Our waterproofing technologies are part of our Stahl Neo® portfolio, which ensures that they comply with the ZDHC MRSL.
| Product | Type | Main features |
|---|---|---|
| Densodrin® CD | Synthetic, silicone-based fatliquor with a special emulsifier system | Especially recommended for leather which requires the highest performance in waterproofing. Ideal for as well Full Grain as Nubuck. |
| Densodrin® CS | Synthetic, silicone-based fatliquor with a special emulsifier system | Ideal waterproofing product for Aniline Full Grain and Nubuck leathers that require high Maeser flexes. |
| Densodrin® DP | Polymer dispersion that contains silicone | Recommended for shoe upper - Excellent VOC and fogging results. |
| Densodrin® DS | Silicone-based synthetic fatliquor with a special emulsifier system | Particularly recommended for use as the sole fatliquor applied to shoe upper leather. |
| Densodrin® EN | Hydrophobic, synthetic fatliquor | Suitable for all waterproofed leathers that are tested according to the Bally method. |
| Densodrin® ENS | Synthetic, silicone-based fatliquor with a special emulsifier system | For use on leather that is expected to fulfill medium to high levels of water resistance. |
| Densodrin® EP | Polymer dispersion that contains silicone | Can be used for all types of water proof chrome-tanned leather, but it is especially recommended for shoe upper leather. |
| Densodrin® ER | Synthetic, silicone-based fatliquor with a special emulsifier system | Very soft and smooth touch without loosening the grain. Full spongy handle, it can be dyed to clean, brilliant shades. |
| Product | Type | Main features |
|---|---|---|
| Densodrin® HP | Polymer dispersion that contains silicone | Full handle and a pleasant touch. It can be dyed to clean, brilliant shades and it responds well to buffing. |
| Densodrin® OF | Polysiloxane emulsion | Reactive silicone emulsion - Increase the water repellency of leather - Improves the softness of the leather and imparts a soft, silky handle. |
| Densodrin® S | Aqueous emulsion of special silicon oils | Densodrin® S is used as an additive in water-repellent treatment processes that employ Densodrin® CD, DS, EN, ENS or EP. |
| Densodrin® SI | Polymer emulsion containing silicone | Additive used to enhance the water resistance of leather, especially in combination with other products from the Densodrin® range. |
| Densotan® A | Aqueous, anionic polymer solution | Very versatile, high-performance dispersing agent - Enhances the performance of post-tanning treatment processes. |
| Derminol® LUB liq | Waterproofing polymers | General waterproofing polymer based fatliquor. |
For a complete overview of our conventional and polymeric waterproofing technologies, download the product catalog below.
Full polymer silicone leather waterproofing
Meet our full polymer silicone 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. Employing Densodrin® Polymeric Generation with the polymeric Densotan® auxiliary enables tanners and shoe manufacturers to benefit from full polymeric neutralization, re-tanning and waterproofing.
Standard and high performance conventional waterproofing
Our conventional waterproofing systems, using our synthetic Densodrin® DS, CD and CS fatliquors, offer very good waterproofing performance. Densodrin® CS is especially suitable for aniline full grain and nubuck leathers that require high Maeser flexes; Densodrin® DS is recommended for use as the sole fatliquor applied to shoe upper leathers; Densodrin® CD has high fastness properties that make it an excellent choice for use on white and pastel shades. It also is particularly recommended for leather tested by the Maeser method.
Densodrin® EN, ENS and ER are the solutions for conventional waterproofing. For leathers that need a medium to high level of water resistance, Densodrin® ENS is the waterproofing agent of choice. When it is important that the leather retains its grain tightness, but also has a very soft and smooth touch after waterproofing, we recommend Densodrin® ER, which also improves dyeing results. Densodrin® EN is suitable for waterproof leathers that are tested via the Bally method.
Densodrin® and their waterproof effect
Waterproofing auxiliaries Densodrin® and Densotan®
Our waterproofing auxiliaries for neutralization and dispersion – Densotan® A and CP – optimize distribution and prepare the leather for further treatment. Densodrin® OF and S are additives for boosting the water-resistance even further. Densodrin® OF also softens the leather and gives a smooth, silky handle to the leather.