SONAX PROFILINE FabricCoating fabric impregnation 1000ml

Protection for fabric, cloth and soft tops — SONAX PROFILINE FabricCoating

What do you use a professional fabric impregnation for? The SONAX PROFILINE FabricCoating is a spray-on fabric impregnation for inside and out — it gives soft tops, cloth seats, carpets and fabric trim lasting protection against water, dirt and stains thanks to a water-repellent barrier.

Fabric surfaces in a car take a constant beating: a cloth soft top gets hit by rain, UV and bird droppings; cloth seats and carpets soak up moisture that breeds mould and brings on odours; velour headliners and trim drink up stains that are a pain to get back out without protection. The SONAX PROFILINE FabricCoating protects all of these fabric surfaces with a lasting impregnation: once it has dried, the product forms a water- and dirt-repellent layer that makes water bead off and stops liquids and dirt particles from working their way into the fibres. It comes in a 1-litre format for professional use in detailing shops and on convertibles.

• Water-repellent impregnation for soft tops, seats and fabric trim. Once you lay it down, the PROFILINE FabricCoating wraps each fibre in a hydrophobic layer. That fibre-protection effect makes water roll off the surface as beads instead of soaking into the fibres. It stops the fabric from getting waterlogged in the rain, protects the backing from moisture damage and makes cleaning a lot easier: dirt grips less on impregnated fabric and wipes or vacuums off more readily.
• For inside and out — one product for every car fabric. The FabricCoating works on every fabric surface in and on the car: cotton or polyester soft tops, Alcantara seat panels, velour carpets, fabric headliners, cloth door trim and convertible window cords. That inside-and-out flexibility saves you time and product: instead of two different products for interior and exterior, you only need the FabricCoating for every fabric area of a car.
• Pro 1-litre format for convertible specialists and detailers. The 1-litre format of the PROFILINE FabricCoating is built for regular use in shops that work on convertibles a lot or do plenty of fabric jobs. Compared with consumer 250 ml or 500 ml bottles, the price per litre in the 1-litre pro container is a lot better. You can decant the product straight into a spray bottle.

Day-to-day from Detailing1: With the PROFILINE FabricCoating, the prep makes or breaks the result: a fabric impregnation only works on clean, grease-free fabric — on greasy or dirty cloth it never builds a complete protective layer. Clean the soft top first with the SONAX PROFILINE All-Purpose-Cleaner "Foam", rinse it thoroughly and let it dry completely, then spray the FabricCoating on. Let the top rest for 24 hours to dry in a horizontal position (top closed) — that way the impregnation works its way into every part of the fibres, including the inward-facing fibres under the surface.

How the PROFILINE FabricCoating is formulated — fibre impregnation and hydrophobic effect

The PROFILINE FabricCoating formula is built on fluorocarbon-free impregnation technology: the active substances work their way into the fabric structure and settle on each individual fibre. The result is a fibre coating that repels water without changing the texture or the hand of the cloth. Unlike older PFC-based impregnations (perfluorocarbons), the PROFILINE formula is developed without these persistent environmental chemicals — a quality mark that matters more and more in professional work.

The hydrophobic effect of the impregnation comes down to the lotus principle: the fibre coating lowers the surface energy of the fabric, so water can no longer get a grip on the fibre and sits on the surface as droplets instead of spreading through the fibre structure. As long as the protective layer is intact, rain runs off the soft top without soaking the backing. The layer itself is breathable: it keeps water out from the outside but lets moisture vapour pass through from the inside — which matters on convertibles, to avoid condensation building up under the top.

One technical edge of modern fibre impregnation over old wax and silicone impregnations is that it keeps the fabric breathable. Old impregnations sealed the fabric pores completely — which kept water out, but also blocked moisture vapour from the inside. That led to condensation under the soft top and unpleasant damp problems in the cabin. The fibre impregnation in the PROFILINE FabricCoating protects each individual fibre but leaves the pores between the fibres open — water vapour can escape, while liquid water from outside still can't get in. You know this principle from quality outdoor clothing, and it works just as well on car fabrics.

How long the impregnation lasts depends on how much mechanical wear it takes. On convertibles that get driven in the rain a lot and run through car washes, the impregnation needs redoing more often than on cars that rarely come out. As a rough guide: when water no longer clearly beads off the top but spreads into flat puddles, it's time to re-impregnate. Depending on use, that point can come after about 3–6 months, or only after well over a year.

Using the FabricCoating — cleaning, application and drying time

Using the PROFILINE FabricCoating follows a clear three-step process: clean — impregnate — dry. The cleaning step is the most important one: the fabric has to be free of dirt, grease, old impregnation residue and care products. On dirty fabric the FabricCoating won't build an even protective layer; on greasy fabric (for example after a silicone dressing has been used) the impregnation can't bond at all. A thorough clean with a fabric cleaner and a full dry before you impregnate is non-negotiable.

Application: decant the FabricCoating into a spray bottle (or use a suitable spray head straight from the container) and spray it evenly onto the dry fabric surface. The fabric should be fully wetted but not dripping wet — a light, even mist is enough. On textured top fabric, watch for good coverage down into the dips of the weave. Don't rub or spread it after you've applied it — the impregnation soaks into the fibres on its own.

Drying time: the treated fabric should dry for at least 4–6 hours at room temperature before it sees any water. For convertibles, dry it with the top closed on a warm, dry day. Full curing and cross-linking takes 24 hours — only then does the impregnation reach its peak hydrophobic effect. If you drive the car in the rain after just 6 hours, you'll get noticeably worse water repellency than if you'd given it the full cure time.

For shops that turn around a lot of cars a week, a standardised workflow for fabric impregnation pays off: clean the fabric and let it dry for at least 2 hours, then spray the FabricCoating on evenly and let it dry for another 24 hours. In practice that means you apply the impregnation at the end of a detailing day and leave the car overnight — by the next morning the drying is done and the car is ready to hand over. This flow slots neatly into a working day without creating dead time that drags productivity down.

Where to use it — soft tops, Alcantara, velour and fabric interiors

The soft top is where the FabricCoating really earns its keep: cotton or synthetic soft tops sit out in the rain, dirt and UV without protection and degrade over time. A well-kept, regularly impregnated soft top stays in good shape for years; a neglected top is prone to mould, fades and loses its waterproofing. The FabricCoating is the tool for preventive top care.

For classic and youngtimer convertibles with original cotton tops, the FabricCoating is especially worthwhile: older cotton tops are more prone to mould and colour loss than modern synthetic ones. Regular impregnation slows the weathering down considerably and extends the life of the original top — which, on classics where replacement tops are rare and pricey, means real value retention. If you're re-impregnating a cotton classic-car top, make sure it's fully dry and clean before you treat it — any damp or mouldy spots need treating with a suitable anti-fungal product first.

Inside the car, the FabricCoating protects Alcantara seat covers, velour carpets and fabric trim from stains caused by drinks, dirt and body oils. Impregnated Alcantara is easier to clean when it gets stained, because the liquid isn't pulled straight into the fibres. For cars with high-quality fabric trim — youngtimers, luxury cars, cars with special-order interiors — regular fabric impregnation is an important way to keep the value up.

PROFILINE FabricCoating compared — fabric protection in the SONAX PROFILINE range

In the PROFILINE range, the FabricCoating is the specialist for fabric surfaces. For the pre-clean before impregnating, the SONAX PROFILINE CleanStar "Ecocert" is a good fit — a mild, Ecocert-certified interior cleaner that cleans fabrics without aggressive solvents and leaves no residue that could throw off the impregnation that follows. For tougher dirt on soft tops or heavy fabric soiling, the SONAX PROFILINE InnenReiniger is the stronger pre-clean option.

The FabricCoating isn't an all-purpose sealant — it's developed specifically for fabric surfaces and shouldn't go on paint, plastic or glass. It isn't suited to faux leather or real leather either: leather surfaces need a leather-specific care product that feeds the leather structure and protects it at the same time. If you've got both fabric and leather in the car, you need both product types separately.

Buy SONAX PROFILINE FabricCoating — for convertible care, interiors and fabric protection

The PROFILINE FabricCoating in the 1-litre format is aimed at detailing shops and detailers who regularly work on convertibles or do extensive fabric impregnation. A single car interior often only needs 100–200 ml; the 1-litre format therefore covers 5–10 full car treatments from one container — economical for shops with several fabric-protection jobs a month.

You get the best results with a steady care routine: clean and re-impregnate twice a year — once in spring before the convertible season, once in autumn before winter storage. That keeps the soft top protected the whole time, and the effort for yearly care stays manageable. Shops that offer convertible care as a seasonal service can add the FabricCoating as a fixed service product to their line-up and keep the 1-litre format on hand as a stock for the whole season.