Finishing materials

LeTech Thickening Agent – Professional Polyurethane Viscosity Modifier

The LeTech Thickening Agent (Expert Line) is a high-performance functional additive engineered from synthetic polyurethanes. Developed with professional British restoration heritage, this solution is designed to precisely adjust the viscosity and rheological properties of aqueous polyurethane dispersions. It is an essential component for restoration specialists and automotive detailers requiring granular control over the consistency of leather dyes, protective top coats, and repair compounds.

Advanced Viscosity Control for Professional Restoration

This technical additive allows professionals to modify the flow characteristics of leather coatings without compromising the integrity of the original formula. Whether increasing the body of a top coat for vertical applications or creating high-build finishes for patent leather, the Thickening Agent ensures a stable, predictable result. The formula is specifically optimized to prevent sagging and minimize splatter during spray or sponge applications.

Professional Applications

Automotive Interiors

Ideal for refining the consistency of dyes used on bolstered seats, steering wheels, and door panels where precision and run-prevention are critical.

Furniture Restoration

Provides the necessary body for applying top coats to vertical surfaces of luxury sofas and chairs, ensuring an even, drip-free finish.

Marine Interiors

Engineered to withstand the rigorous demands of marine upholstery restoration, allowing for thick, protective barriers on heavy-use surfaces.

Private Aviation

Meets the exacting standards required for the restoration of premium aircraft leather, maintaining material flexibility and transparency.

Luxury Leather Goods

Essential for achieving the "super-gloss" aesthetic required for patent leather footwear and high-end handbags when mixed with gloss top coats.

Why Professionals Choose LeTech

LeTech represents the pinnacle of British restoration standards. Unlike retail-grade additives, the Expert Line Thickening Agent maintains total transparency and does not alter the color accuracy of the base product. It preserves the drying time and intercoat adhesion of the leather finish, ensuring that the structural integrity of the repair remains uncompromised. This professional reliability reduces material waste and labor time, providing significant cost savings compared to component replacement.

Technical Specifications

• Surface Compatibility: Natural leather, bonded leather, and vinyl (when used with compatible LeTech coatings).
• Finish Type: Maintains the original finish of the base product (Gloss, Matte, or Satin).
• Drying Time: Does not affect the standard curing cycle of polyurethane coatings.
• Coverage: Highly concentrated; 1% to 5% addition rate by volume.
• Durability: High-grade synthetic polyurethane ensures long-term film stability.
• Application Method: Direct integration into liquid coatings via thorough mechanical mixing.

BENEFITS

• Precision Restoration: Achieve the exact thickness required for specialized repair techniques.
• Zero Color Shift: Formulated to remain 100% transparent upon curing.
• Anti-Sagging Properties: Facilitates heavy application on vertical surfaces without runs or drips.
• Cost Efficiency: Extends the utility of standard dyes and coats for specialized high-build tasks.
• Maintained Adhesion: Does not weaken the bond between leather fibers and the coating layers.

HOW TO USE

1. Preparation: Ensure the base product (Leather Colourant, Top Coat, or Filler) is clean and ready for mixing.
2. Dosage: Introduce the Thickening Agent at a ratio of 1% to 5% of the total volume. Do not exceed 5% to avoid excessive viscosity.
3. Mixing: Stir thoroughly to ensure even distribution of the agent throughout the medium. No pre-dilution is required.
4. Testing: Always conduct a small-scale test on an inconspicuous area to verify the desired flow and finish.
5. Application: Apply the thickened mixture using a sponge, brush, or specialized spray equipment according to the base product's instructions.
6. Safety: Work in a well-ventilated area. Use professional-grade PPE as recommended for polyurethane handling.

Leather Burnishing Gum — LeTech

Leather Burnishing Gum is a colourless, water-based wax designed for the professional finishing of natural leather edges. Its balanced consistency makes it easy to apply, spread and then buff to a smooth, polished finish. Once worked in and burnished, the product delivers a refined edge with a subtle gloss and water-repellent properties.

Leather Burnishing Gum combines natural waxes and water-based polymers. The components are selected to optimize burnishing performance, allowing the edge to be compacted, smoothed and polished for a clean, professional look and reliable protection. The wax creates a smooth, glossy and well-finished edge that enhances the overall appearance of hand-crafted leather goods.

The product can be used on both vegetable-tanned and chrome-tanned leathers. It is also suitable for treating the flesh side (back side) of natural leather where a more controlled, refined surface is required.

Leather Burnishing Gum emphasizes the uniqueness of your leather projects and helps them stand out with a clean, finished edge and additional protection against external influences.

⭐ Signature Advantages

• Colourless, water-based wax for leather edge finishing

• Optimal consistency for easy application, spreading and polishing

• Polishes well and provides a water-repellent effect

• High aesthetic appeal with a professional, finished look

• Resistance to water and harsh environmental conditions

• Noble, attractive gloss on the edge

• Resistance to mechanical friction while maintaining elasticity

• Suitable for both vegetable-tanned and chrome-tanned leathers

• Can be used on the edge and on the flesh side of natural leather

👨🏭 Created for Professionals

Ideal for:

• Leather belts

• Watch straps

• Vegetable-tanned leather goods

• Hand-crafted leather items and leathercraft projects

For additional consultation on LeTech leather products, our specialists and managers are always available to assist.

🧬 Compatible Leather Types

Suitable for:

• Vegetable-tanned leather

• Chrome-tanned leather

• Natural leather edges and flesh side where burnishing is required

Not explicitly intended for:

• Suede and nubuck (edge-specific product; main use is for cut edges and flesh side of smooth leathers)

🎯 Refined Result

With proper use, Leather Burnishing Gum delivers:

• Smooth, compacted and polished edges

• A clean, glossy and professional appearance

• Improved resistance of the edge to moisture and external exposure

• Enhanced durability against mechanical friction

• A more finished, premium look that visually upgrades the entire leather item

📘 Application Notes

• Use Leather Burnishing Gum on prepared leather edges for final finishing.

• Apply a thin layer to the edge or flesh side where burnishing is needed.

• Work the product into the edge using your preferred burnishing tool until the surface becomes smooth and glossy.

• Allow the treated area to dry so the water-based wax and polymers can set and form a protective layer.

• Always test the product on a small, inconspicuous area before full application to check for undesired reactions and to verify the result.

• Follow the manufacturer’s instructions for safe and effective use.

LEATHER CASEIN ADDITIVE — LETECH EXPERT LINE

Polyurethane-modified casein additive designed to improve elasticity, adhesion and durability in leather finishing systems. Ideal for footwear, apparel and leather goods.

Signature Advantages

• Enhanced elasticity and flexibility — maintains natural leather movement without cracking

• Improved adhesion — strengthens bonding within finishing systems for longer-lasting results

• High wear and abrasion resistance — supports heavy-use leather applications

• Moisture- and chemical-resistant film that outperforms traditional casein coatings

• Breathable dispersion layer that supports vapor exchange and prevents over-sealing

• Stable, uniform film formation for cleaner visual blending and improved surface quality

Created for Professionals

• Footwear finishing and leather apparel production

• Leather goods manufacturing and accessory finishing

• Restoration studios working with premium leather surfaces

• Workshops requiring durable, breathable finishing solutions at scale

Compatible Leather Types

Suitable for finished and pigmented leather, as well as coated PU/artificial leather surfaces.

Not suitable for suede or nubuck. Always perform a patch test on an inconspicuous area.

Refined Result

A resilient, well-formed, breathable finishing film that adds strength, adhesion and resistance to coatings while preserving the natural aesthetic and tactile properties of the leather.

Application Notes

Use as an additive in finishing or top-coat systems.

Mix thoroughly before application. Apply using standard spray or finishing equipment according to your coating workflow.

Allow proper curing time for best performance.

Always follow manufacturer instructions and test product suitability prior to full-scale use.