Koch-Chemie × COLOURLOCK COLOURLOCK "Thickener" Additive to thicken coloured filler 100ml

COLOURLOCK Thickener — Additive for thickening colored filler for precise leather repairs

What does COLOURLOCK Thickener do? — The additive increases the viscosity of colored filler, improves control during application, and enables precise structural and edge repairs without running or sagging.

COLOURLOCK Thickener is the professional additive for targeted thickening of colored filler (Fluid Leather / Leather Filler). It ensures that the filler stands more stably, does not run, and is easier to model – ideal for deeper scratches, cracks, edge damage, and structural repairs on leather and faux leather. Thickener enables controlled work, improves dimensional stability, and creates a reliable base for subsequent color and finish layers.

• Improved stability – Filler stays where it belongs, without sagging or flattening.
• Precise modeling – Ideal for edges, deep defects, and textured surfaces.
• Compatible with COLOURLOCK fillers – Works perfectly with colored filler and structural repair products.

Viscosity Technology & Mechanism of Action

Thickener alters the rheological properties of the colored filler without affecting its adhesive strength, elasticity, or color effect. The additive makes the filler more viscous, dimensionally stable, and easier to control. This is particularly important for vertical surfaces or repairs where the material needs to be modeled – such as on edges, deep grooves, or worn seat bolsters. The formulation prevents sagging during drying and ensures a precise, uniform repair appearance.

Application, Dosage & Best Practice

Thickener is mixed directly into the colored filler. Even small amounts are sufficient to achieve the desired viscosity. After stirring, a moldable, well-controlled mass is created, which can be applied with a spatula, brush, or fine application technique. It is important to dose gradually to avoid over-thickening. After application, the repaired area is sanded, textured (if necessary), and color-finished. Thickener significantly improves repair quality – especially for complex shapes.

Results, Application Areas & Benefits

With Thickener, filler applications can be made cleaner, more precise, and more dimensionally accurate. Repairs to edges, deep scratches, and textured leather surfaces appear more homogeneous and stable. Thickener particularly demonstrates its strengths in automotive leather, furniture repairs, bags, shoes, and interior parts. It perfectly complements the colored filler but does not replace primer or color applications; rather, it exclusively optimizes the processing and stability of the material.

Frequently Asked Questions about COLOURLOCK Thickener

How much Thickener should I add?

Only small amounts. Dose gradually until the desired viscosity is reached.

Does Thickener change the color of the filler?

No. It only affects the consistency, not the shade.

Can I use Thickener with any COLOURLOCK filler?

Yes, it is specifically designed for this and compatible with colored filler.

Is Thickener also suitable for large areas?

Yes, especially helpful for structural repairs or vertical areas.

Does Thickener affect durability?

No. The filler remains just as durable; the application merely becomes more precise.

Last updated: 06.12.2025 — Author: Daniel (Detailing1)