Kalkvlekken op de autoruit verwijderen zonder het glas te krassen
Daniel von Detailing1 |
Koch-Chemie × COLOURLOCK
COLOURLOCK "Nubuck Fresh" (Neutral) neutrale kleuropfrisbasis voor nubuck en open-porig leer
Kleurloze opfrisser voor nubuck en suède
What is COLOURLOCK Nubuck Fresh? A water-based color refresher for buffed leathers — nubuck, suede, and rough-out leather. Applied neutrally, it evens out dull and faded areas without shifting the hue; add leather dye, and it becomes a tinting agent. Professional-grade leather repair chemistry, not a waterproofing spray.
COLOURLOCK Nubuck Fresh is a color refresher for leathers with a buffed surface: nubuck, suede, and everything else categorized by the industry as rough-out leather. COLOURLOCK "Nubuck Fresh" (Neutral) serves as the pigment-free base — water-based, applied thinly, and without forming a closed film. It brings uneven surfaces back to a consistent level and, according to the manufacturer, can absorb 20 to 30 percent leather dye if you want to tint rather than just refresh.
Expert tip from Detailing1: The most expensive mistake on suede happens before the freshening process. We regularly receive inquiries about nubuck leather that looks dark and blotchy after being treated with leather grease, shoe polish, or a colored care spray — grease penetrates the open pile and cannot be removed. Nubuck cannot tolerate anything greasy, and applying a refresher over it only makes the blotches more visible. Therefore, test first in a hidden spot, under the seat or on the back of the backrest, and designate an untreated reference area to compare under daylight. Then, spray from 20 to 30 centimeters in two thin passes rather than one wet one, and work from seam to seam instead of from spot to spot: on suede, the seam is the only edge where a transition remains invisible.
Nubuck and suede fade because the buffed pile wears down. The color sits on the fiber tips, and the tips are the first to go.
The pile is what makes suede what it is: a fine, raised carpet of collagen fibers created by the tanner through sanding. With nubuck, the grain side is sanded, leaving the pile short and velvety; with suede (velour), the flesh side is sanded, leaving a longer, rougher pile. In practice, you can tell the difference by the feel — and by the fact that both surfaces change color in raking light depending on which direction you brush them.
This pile is the weak point. Friction lays the fibers flat, sunlight splits the dyes in the exposed tips, and the combination creates the typical damage pattern: a lighter, smoothed-down area that shines greasily in the light instead of scattering it like velvet. In a car, this affects the seat bolsters, entry edges, armrests, and the steering wheel rim first. On furniture, it is the seat surface and armrests; on shoes, the toe area and heel cap.
That is why cleaning is not the same as refreshing, and the order cannot be reversed. A cleaner removes dirt, body oils, and grip marks from the open pores — it cannot bring back the color that disappeared with the pile. If your surface is clean after a round with the Aniline & Nubuck Cleaner but still looks uneven, the work of refreshing begins.
COLOURLOCK "Nubuck Fresh" (Neutral) contains no pigment. It settles finely on the fibers without closing the open structure — this distinguishes it from any smooth leather refresher.
Technically, it is a water-based dispersion: tiny binder particles that float in the water and remain on the fiber tips as they dry. On smooth leather, these same particles grow together into a closed, elastic film. On suede, exactly that must not happen, which is why it is applied paper-thin and without dripping. This means for you: the leather looks richer after drying, still feels like suede, and still "writes" when you brush your hand over it.
The second role of the base is the more interesting one. It is the carrier into which dye can be mixed — up to 20 to 30 percent leather dye according to the manufacturer, with the rest remaining as binder. Using less only slightly shifts the tone; using more sacrifices the elasticity needed for a compressed seat bolster. And over an already tinted layer, the same neutral base serves as a fixative, or alternatively, one percent crosslinker. One product, three tasks: refresh, tint, fix.
You do not have to find the color match yourself. COLOURLOCK mixes Nubuck Fresh in vehicle-specific shades based on samples and car brands — the suede care is produced for your specific model, so you don't have to guess from a color chart. For furniture and fashion leather without a manufacturer shade, the path remains using the neutral base plus the dye portion.
The distinction from the related product is sharp and worth noting: the Leather Fresh neutral bases do the same job for pigmented smooth leather, though with a choice of gloss level and a top coat on top. Anyone who confuses the two will end up with a sticky surface on suede and a layer on smooth leather that rubs off after the first pair of jeans.
Not every rough surface in the interior is real suede. Most refreshing attempts fail due to this confusion before the bottle is even open.
Nubuck, suede (velour), and colloquially termed "wild leather" are all genuine leather with a sanded surface, and Nubuck Fresh is made for all three. The differences lie in pile length and feel, not in the process. Oiled or greased suede from the outdoor sector also belongs to this family, though it carries its own history: where grease is already present, the water-based refresher will be absorbed unevenly.
Alcantara and related microfiber suede imitations, on the other hand, are not leather but textiles made of polyester and polyurethane. They look like suede, they write like suede, and they react completely differently: leather dye finds no fiber to dock onto there, and leather oil remains greasy on the surface. You treat Alcantara surfaces in a car as textiles — with an upholstery or textile cleaner and, if protection is needed, with a textile sealer. When people talk about Alcantara-like material in a vehicle, they mean the visual resemblance, not the same substrate.
A special case, which occurs more frequently in furniture than it sounds, is embossed nubuck leather. In these cases, a darker grain pattern is printed onto the suede base. The raised areas are suede, the dark pattern behaves like smooth leather — one surface, two materials. This can be refreshed, but repeated sanding will permanently destroy the print. Less mechanical work is always the right decision here.
The finger test alone is not enough for differentiation because Alcantara shows the writing effect just as well. More reliable is a look at a cut edge or into a seam: leather shows a fibrous, irregular cross-section, while microfiber shows a uniform textile structure with a visible backing fabric. And in case of doubt, your vehicle's equipment list decides, not your gut feeling.
The refresher only adheres where there is nothing between it and the fiber. On a used seat, there is almost always something.
The procedure follows the data sheet and is intentionally unspectacular. First, brush off loose dirt dry, then work with the appropriate cleaner for open-pored leather, and then thoroughly degrease. Body oils, sunscreen, and silicones from cockpit sprays form a barrier film that no mild cleaner will remove — that is the job of the degreaser. Shiny, flattened "grease spots" are carefully roughened beforehand with a sanding pad or nubuck eraser so that they are absorbent again.
The application itself is done with a sponge, spray bottle, or — for consistent surfaces the best solution — with a spray gun. Thinly and without dripping from seam to seam, from about 20 to 30 centimeters away; better two thin passes than one that soaks the surface. Water is the actual enemy on suede: a single drop leaves a visible ring when drying because it transports dissolved dye to the edge of the damp area.
After drying, the step that determines whether it is visible or invisible follows. The surface is carefully brushed up or rubbed with a terry cloth until the pile stands up again. Without this step, the surface remains flat and looks like felt — with it, it looks like it did before, only more even. If necessary, a second round follows in the same pattern.
The finish is not a lacquer, but protection: after refreshing, a care product or waterproofing for suede belongs on the surface so that the fresh pile doesn't immediately pull in stains again. To be honest: our sealer and impregnation line covers smooth leather, synthetic leather, and textiles — for suede, you should reach for a waterproofing spray explicitly labeled for nubuck and suede. From Detailing1's daily routine: plan on half a day for a pair of seats the first time, not an hour, and the majority of that is drying time between passes.
A refresher works with the shade that is already there. It won't make it lighter or darker, and the manufacturer explicitly states this in the data sheet.
Two further limitations are right next to it. After application, slight color transfer can occur — it's worth checking on light-colored seat covers and light clothing during the first few days. And the product is water-based, so it is sensitive to frost and heat: a bottle that sits in the car overnight in winter can flocculate and can no longer be processed evenly. Shake vigorously before each use and test in a hidden area; there is a good reason this is at the top of the instructions.
The harder limit is the condition. Suede will never be like new after a cleaning and refreshing — the worn-off pile is gone, and no liquid can regrow it. Light to moderate fading is visibly restored by Nubuck Fresh; areas worn through to a smooth, hard substrate are not. Heavy fading and large-area color damage are matters for a professional workshop with a spray booth, not a spray bottle in the driveway.
The most common negative example from our consultation is a greasy, shiny armrest that was sprayed without prior roughening. The compacted area absorbs almost nothing, while the surrounding area does — after drying, the spot stands out darker and more clearly than before. Just as regularly, we receive inquiries about suede that was treated with a colored universal spray from the shoe rack and is now blotchy. Both are repairable, but they cost one more cleaning and degreasing cycle than the first attempt saved.
And there is a line beyond which no product is responsible. Seat covers with an airbag seam belong to an upholsterer: this seam is a structural designated breaking point; it must not be glued, stiffened, or reworked. The same applies to rips, holes, and loose seams — that is where repair begins, not refreshing.
Four conditions, four answers. The most honest way through this category is a decision tree, not a product comparison.
If the surface is clean and only dull, uneven, or slightly faded, while the core shade is still correct, COLOURLOCK "Nubuck Fresh" (Neutral) alone is enough. This is the normal case for furniture leather, bags, and jackets, and for vehicle interiors that have received little sun.
If real color loss is visible on the bolster, entry edge, or armrest, you need a dye component. For vehicles, the shortest path is via the Nubuck Fresh vehicle shades mixed by car brand; for everything else, via the neutral base with leather dye mixed in within the 20 to 30 percent range. Expect that an exact match on ten-year-old leather is not to be expected — that is why you work through to the next seam instead of spot-repairing.
If your suede only looks dirty or greasy and the color is intact, save yourself the refreshing entirely. Then a round with the Aniline & Nubuck Cleaner plus a brush is enough, and you have the better result with the smaller measure. If there are rips, holes, or airbag seams involved, call the upholsterer before applying anything.
All adjacent products for the color stage can be found one level higher under the color refreshers from COLOURLOCK, and the complete journey from primer to finish under Dyeing & Finishing by COLOURLOCK. And the sentence we have to add most often: The difference between a refresh that you see and one that you don't see is not in the bottle. It is in the brush afterward.
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