TUGA Chemie Kunststoff-Teufel® Interior Cleaner 1000ml

Car Interior Cleaner: Plastic-Devil alkaline with antistatic finish

What is the Plastic-Devil? A ready-to-use, highly alkaline interior cleaner from TUGA Chemie GmbH (Osnabrück) with an electrolytic action principle. The pH value is between 10.0 and 11.0 — specifically designed for the alkaline hydrolysis of organic fats, oils, nicotine film, and soot. The surfactant matrix of 3-butoxypropan-2-ol, sodium alkane sulfonate, capryl glucoside, and SLES, in combination with the complexing agents iminodisuccinate and sodium tripolyphosphate, attacks dirt at a molecular level through electrostatic repulsion. Leaves a matte OEM finish and an antistatic protective layer. Strictly unsuitable for genuine leather, Alcantara, uncoated aluminum, and touchscreen displays.

Kunststoff-Teufel® is TUGA Chemie GmbH's interior cleaner and positions itself as a "all-purpose weapon" between aggressive APC concentrates and expensive premium detailers. The formulation is a water-based mixture with 3-butoxypropan-2-ol (CAS 5131-66-8) as an organic glycol ether solvent (up to 2.5 percent), sodium laureth sulfate as an anionic and capryl glucoside as a non-ionic surfactant, and sodium alkane sulfonate as the primary heavy-duty cleaner for heavy oils.

Its unique selling point is its electrolytic action principle: The high concentration of ionic active ingredients (iminodisuccinate, sodium tripolyphosphate as complexing agents) disrupts the electrostatic binding forces between dirt particles and the plastic surface. Dirt adheres to synthetic materials primarily through weak Van der Waals forces and electrostatic attraction — the high ion concentration envelops the particles, changes their electrical charge, and repels them from the equally charged surface. This explains the "self-acting" cleaning documented by the manufacturer, where dirt is removed even without extreme mechanical scrubbing.

Unlike pure care products, the Kunststoff-Teufel leaves no greasy or shiny silicone finish. The antistatic residual layer dries absolutely matte and restores the plastic's OEM factory condition — a significant difference from cosmetic cockpit sprays that create shine at the expense of optics.

• Electrolytic mechanism for self-acting dirt removal. The cleaner does not work primarily through mechanical dissolution, but through ionic repulsion. On textured ABS hard plastics, polypropylene trim, and PVC foils, the solution penetrates microscopic pores due to its low surface tension and dissolves dirt where microfiber cloths cannot reach.
• Antistatic finish for 3 to 5 days. After wiping, a thin monolayer of film-forming surfactants remains on the plastic surface, dissipating electrostatic charges — loose household dust and road grime adhere less strongly to dashboards. On door sills or heavily used door panels, the film is worn off faster by physical contact; in unused areas, it lasts until the next cleaning.
• €9 to €14 per liter in RTU container. Direct competitor is Sonax Profiline MultiStar (pH 10.5–11.5, approx. €8.32/L concentrate), which, however, must be diluted 1:10 to 1:50 — the Kunststoff-Teufel saves the error-prone dilution process. Koch-Chemie Mzr (pH 12.5, ~€8/L concentrate) is even more alkaline with a higher risk of damage in case of incorrect dilution. Gyeon Q2M VinylCleaner (pH 10, RTU) is over €30/L in the boutique segment, Dr. Wack A1 Tiefenpfleger (~€60/L) is primarily a care product without heavy-dirt dissolving power.

Practical tip from Detailing1: In our workshop, the classic application for Kunststoff-Teufel is direct spraying onto the dashboard. This causes overspray on touchscreens and high-gloss trim — where the alkaline cleaner can cause irreversible damage. Anti-reflective coatings on infotainment displays become permanently matte, and oleophobic coatings disappear. The professional rule: Never spray directly onto the cockpit; always apply 2 to 3 sprays onto a detailing brush or a short-pile microfiber cloth (320 g/m², no plush), then work in with circular motions. Before wiping, it is absolutely essential to vacuum or remove loose crumbs with compressed air — otherwise, every grain of sand will become a source of micro-scratches when wiping. Cover touchscreens and piano lacquer beforehand with tape or film; this saves emergency mitigation with distilled water.

Spray onto the cloth, work in, let it act, wipe clean.

The standard workflow begins with mechanical preparation. Loose sand, crumbs, and pine needles are removed with a soft brush, compressed air, or vacuum cleaner — otherwise, any further wiping will act like sandpaper on the plastic surface. Especially critical are the button keypads on steering wheel switches and the gaps between dashboard modules.

Apply two to three sprays of Kunststoff-Teufel onto a clean detailing brush or a short-pile microfiber cloth (standard 320 g/m², no plush). Never directly onto the cockpit surface — this causes overspray risk and streaks. For heavily soiled door panels or center consoles, the product can be sprayed directly, but immediately spread with a damp cloth.

Work into the plastic structure in circular motions — the pressure should be minimal, the cloth should glide. On textured ABS surfaces, work the depressions with a brush, then follow with the cloth. The dwell time is two to five minutes — for heavily burnt-in nicotine film or old cooking grease, up to ten minutes at the lower end, but re-moisten in between so the product does not dry out.

Then, it is essential to wipe with a second, clean, and slightly damp microfiber cloth. This is not optional — alkaline surfactant residues must be removed with clear water, otherwise, streaks and drying spots will appear in the long run. On touchscreens, display edges, and piano lacquer trim, immediately dab with distilled water — never rub dry.

In a professional detailing workflow, Kunststoff-Teufel is the preparatory step ("Prep") for subsequent plastic care with UV protection. Anyone who applies a care product immediately after cleaning without washing off the surfactant residues risks a sticky, dust-attracting paste. Without pre-cleaning, the care product would only adhere to an old layer of grease.

ABS, PP, PVC and rubber yes. Genuine leather, Alcantara and touchscreens no.

The Kunststoff-Teufel is approved for textured hard plastic made of ABS (acrylonitrile butadiene styrene) and polypropylene (dashboards, door sills, trunk linings), car headliners (carefully, without soaking the adhesive), rubber seals such as door seals and window guides, as well as foils and tarpaulins made of PVC. On the exterior, also unpainted bumpers, wheel arch interiors and black plastic spoilers - here the antistatic effect is particularly welcome, as less dust adheres.

However, four material groups are strictly excluded. First, genuine leather and Alcantara: Animal leather requires a slightly acidic pH value of 4.5 to 5.5 to keep the collagen fiber structure supple. The alkaline Kunststoff-Teufel extracts the refatting natural oils, which eventually leads to cracking and embrittlement. Artificial leather can also lose its plasticizers. For leather, it is essential to use pH-neutral or slightly acidic special cleaners — Koch-Chemie Pol Star or similar dedicated leather cleaners are the right tools.

Second, uncoated aluminum: Highly alkaline solutions can tarnish or oxidize unprotected or anodized aluminum. This is rarely a problem in the interior, but caution is advised with matte aluminum trim in modern premium vehicles. Third, touchscreen displays: Anti-reflective coatings and oleophobic (grease-repellent) coatings on infotainment screens are irreversibly damaged by the electrolyte cleaner — visible as permanent matting or clouding.

Fourth, soft-touch surfaces from older VAG model generations (often on buttons and switches in Golf VI, Audi A4 B8 and comparable): Strongly rubberized coatings tend to swell and become sticky under the influence of glycol ether solvents. Here, test in an inconspicuous area beforehand or use a pH-neutral interior cleaner.

Spring detailing, winter preparation and the industrial use case.

Demand for interior cleaners in the DACH market shows two clear seasonal peaks. The first is during spring detailing between March and May, when road salt residue, soot traces, and winter-month fogging must be addressed simultaneously after the winter break. Interior fogging results from outgassing of dashboard plastics under heating air and condensation — a greasy film that affects all vertical interior surfaces over the winter months.

The second peak is during winter preparation between September and November, when door rubbers and seals are maintained before the frost season. Here, not only cleaning is important, but also the antistatic finish, which prevents door rubbers from freezing to the car body at night — the reduction of dust adhesion improves sealing in the door frame.

The 1-liter spray bottle for about 11 euros is a convenient entry point for one to two vehicles in a private household. With quarterly complete interior cleaning and a consumption of about 50 ml per mid-range interior, one liter is sufficient for about 20 complete cleanings — five years for one car with strict care discipline.

The 5-liter canister for about 33 euros saves about 30 percent per liter and is the standard size for workshops, mobile detailers, and households with three or more vehicles. For commercial detailers with ten to fifteen cars per week, this is a four-to-six-week supply. The pump head of the 1-liter bottle can be unscrewed and transferred to a separate empty bottle — the established solution, as the original 5-liter canister itself is not suitable for spraying.

Off-label, Kunststoff-Teufel has established itself as an industrial cleaner in the DACH region. TUGA Chemie officially approves the product for industrial and household cleaning — blinds, garden furniture, heavily greased kitchen surfaces, even workbenches and machine covers. In the detailing forum dasdetailingforum.de, it is regularly traded as a "secret all-purpose cleaner" that covers the workshop needs of a smaller detailer with a single product. Safety notice for professional use: The product falls under the CLP regulation as skin irritant and eye damaging (H315, H319). The VOC content is below the declaration limit. PPE with nitrile gloves and eye protection is mandatory for frequent use — the mandatory P-phrases P280 and P305+P351+P338 are on the label.

Matching products: Interior cleaners in our range • Tugalin Glas-Teufel (window interior) • Shampoo-Teufel (exterior wash counterpart)

Application of Kunststoff-Teufel Interior Cleaner

Never spray directly onto the cockpit — spray onto the cloth, work in, wipe off

Before each application, it is essential to brush off the cockpit with soft brush bristles, blow it out with compressed air, or vacuum it thoroughly. Loose sand and crumbs would act like sandpaper on the clear coat layer of hard plastics when wiping — visible as micro-scratches in backlight.

Apply two to three sprays of Kunststoff-Teufel onto a clean detailing brush or a short-pile microfiber cloth (standard 320 g/m², not plush). Never spray directly onto the cockpit surface — this causes an overspray risk on touchscreens, high-gloss trim strips, and the windshield, as well as streaks on textured ABS surfaces.

Work into the plastic structure in circular motions — the contact pressure should be minimal, the cloth should glide. For textured ABS surfaces, use a detailing brush to work into the depressions, then follow with a cloth. Allow to act for two to five minutes depending on the degree of contamination — for heavily ingrained nicotine film, up to ten minutes, then re-moisten in between.

Then, it is essential to wipe with a second, clean and slightly damp microfiber cloth. The alkaline surfactant residues must be removed with clear water, otherwise, streaks will form in the long term. For touchscreens, display edges, and piano lacquer trim, dab immediately with distilled water — never rub dry. In a professional workflow, Kunststoff-Teufel is the preparation ("prep") for subsequent plastic care with UV protection.

Notes: Strictly excluded for genuine leather and Alcantara (alkaline hydrolysis destroys collagen fibers, leading to cracks and embrittlement in the long term), uncoated aluminum (can tarnish), touchscreen displays with anti-reflective coatings (irreversible matting), soft-touch surfaces from older VAG model generations (swelling due to glycol ethers). CLP-classified as skin irritant (H315) and eye irritant (H319) — for frequent use, wear nitrile gloves and eye protection. Store frost-free, shelf life 24 months.