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exterior plastic and rubber care with a semi-matt finish

Koch-Chemie Plast Star Silicone-Free Plastic Care

Koch-Chemie

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Sale price From £17.99
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Size: 1L

Silicone oil-free premium product in the area of plastic care products. Maintains and protects over months and is extremely UV-stable.

  • Restores exterior plastic trim
  • Leaves a semi-matt finish
  • Protects over months
  • Extremely UV-stable
  • Suitable for tyre sidewalls
  • Works on rubber parts
  • Helps protect door seals
  • Fast sponge application

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  • Silicone-Oil-Free
  • Exterior Plastic Care
  • Semi-Matt Finish
  • UV-Stable Protection

The Drivers HQ

Expert Notes

Koch-Chemie Plast Star Silicone-Free is the exterior trim care option for detailers who want long-lasting plastic and rubber protection without silicone oil. It is designed for exterior plastics, rubber parts, tyre sidewalls and door seals, leaving a clean semi-matt finish rather than a wet, greasy look. The micro-emulsion care system bonds firmly with the treated surface, helping faded exterior trim regain a fresher factory-style appearance while protecting against UV exposure and environmental wear. It is also useful on rubber door seals because Koch-Chemie states it helps stop seals from freezing. Apply it thinly with a sponge to clean, dry surfaces, rub it in properly and leave it to dry completely.
Simon Hole Simon HoleFounder, The Drivers HQ

Perfect For / Suitable Surfaces

  • Exterior plastic trim
  • Textured plastic trim
  • Bumper plastics
  • Plastic arch trims
  • Rubber trim
  • Rubber door seals
  • Tyre sidewalls
  • Exterior mouldings
  • Plastic grilles
  • Mirror plastics

Do not apply to pedals, steering wheels, tyre tread, motorcycle tyres, braking parts, control surfaces or anywhere slipperiness would be unsafe. Avoid glass, interior displays, fabric, Alcantara, matte paint, satin paint and unknown sensitive finishes unless compatibility has been confirmed.

Technical Specifications

Product Type
Exterior Plastic And Rubber Care
Brand
Koch-Chemie
Product Name
Plast Star Siliconölfrei
Product Code
Pss
Formula Type
Silicone-Oil-Free Plastic Care
Finish
Original New Semi-Matt Appearance
Protection Duration
Protects Over Months
UV Stability
Extremely UV-Stable
Care System
Micro-Emulsion
Primary Use
External Plastic And Rubber Care
Tyre Use
Tyre Sidewalls Only
Rubber Seal Use
Helps Stop Door Seals Freezing
Application Method
Sponge Application
Surface Condition
Clean And Dry Before Application
Drying Requirement
Leave To Dry Completely
Fragrance
Pleasant Fragrance
Approval
Daimler Approved
Available Sizes
1L And 10L
1L Article Number
173001
10L Article Number
173010
Professional Use
Yes

Preparation

  1. Clean the plastic or rubber surface first.
  2. Make sure the surface is dry before application.
  3. Check suitability on a hidden area.
  4. Do not apply in direct contact with glass, controls or braking parts.
  5. Shake the bottle before use.

Exterior plastic application

  1. Apply a small amount of Plast Star Silicone-Free to a sponge applicator.
  2. Spread evenly over the exterior plastic trim.
  3. Rub the product in thoroughly.
  4. Avoid heavy wet patches.
  5. Leave the treated surface to dry completely.
  6. Wipe away excess if the finish looks uneven.

Tyre sidewall application

  1. Clean the tyre sidewall thoroughly first.
  2. Make sure the sidewall is dry.
  3. Apply a thin amount to a tyre dressing sponge.
  4. Spread evenly around the tyre sidewall.
  5. Keep product away from tyre tread.
  6. Allow the dressing to dry fully before driving.

Rubber seal application

  1. Clean the rubber door seal first.
  2. Dry the seal properly.
  3. Apply a thin amount using a sponge or cloth.
  4. Work the product evenly into the rubber.
  5. Allow it to dry before closing the door fully.
  6. Wipe away any excess from surrounding paint or glass.

Top Tip: Use a thin coat and let it dry fully. Plast Star Silicone-Free gives a better semi-matt finish when it is worked into the surface rather than left sitting wet on top.

PerformanceBenefits

Restores faded trim appearance
Bonds firmly to treated surfaces
Helps reduce future ageing

Best Paired With

Frequently Asked Questions

It is used to care for and protect exterior plastic, rubber parts, tyre sidewalls and door seals.

Yes, this listing is for Koch-Chemie Plast Star siliconölfrei, the silicone-oil-free version.

It leaves an original new semi-matt appearance rather than a greasy high-gloss finish.

Yes, it can be used on tyre sidewalls, but never apply it to tyre tread or motorcycle tyres.

Yes, Koch-Chemie states it is suitable for door seals and helps stop them from freezing.

No, this product is mainly for exterior plastic and rubber. Use a dedicated interior dressing for cabin plastics.

Koch-Chemie states that it maintains and protects treated surfaces over months.

Yes, Koch-Chemie describes it as extremely UV-stable.

Plast Star Silicone-Free uses a silicone-oil-free micro-emulsion system, while standard Plast Star uses a wax-silicone dispersion.

This listing covers Koch-Chemie Plast Star Silicone-Free in 1L and 10L.

HQ Suggests Tips & Insights

  1. Clean trim before applying.
  2. Apply with a sponge for control.
  3. Use thin even coverage.
  4. Rub into textured plastics properly.
  5. Let the surface dry completely.
  6. Avoid tyre tread completely.
  7. Keep away from pedals and controls.
  8. Use on exterior trim, not interior screens.
  9. Wipe excess from glass or paint edges.
  10. Choose 1L for regular detailing and 10L for trade refilling.
  11. Available online with UK-wide delivery from The Drivers HQ.

The Brand

Koch-Chemie

Koch-Chemie began in Germany in 1968 when trained carpenter Hans Koch started developing his own polishing compounds after becoming dissatisfied with the vehicle care products available at the time. His interest in surface finishing became the foundation of the company, with the first Koch-Chemie products moving into serial production during the 1970s. The business has remained based in Unna, Germany since 1971 and has expanded from polishing into vehicle cleaning, preparation, car wash chemistry, workshop products and industrial cleaning.

That history still shows clearly in Koch-Chemie's paint correction range. Heavy Cut, Fine Cut and Micro Cut compounds are designed as defined stages of correction and refinement, supported by corresponding pads and preparation products rather than being treated as isolated bottles of polish.

A Detailing Range Built as a System

A Detailing Range Built as a System

Koch-Chemie approaches vehicle care as a complete chemical and process system. Its detailing catalogue covers pre-cleaners, wheel cleaners, foams, shampoos, fallout and tar removal, polishing compounds, sealants, interior cleaners, glass products and specialist treatments. Familiar products including Green Star, Pol Star, Heavy Cut H9.02, Fine Cut F6.01 and Micro Cut M3.02 each occupy a specific position within that process.

The company's ProductSystem takes this further by dividing its chemistry into ten application groups with individual colour codes. Product abbreviations and technical information are incorporated into the labelling so that users can identify what a product is designed to do and where it belongs within the wider system. This structured approach is one of the most identifiable characteristics of Koch-Chemie.

Developed and Produced in Unna

Developed and Produced in Unna

Koch-Chemie operates its own research and development department at its site in Unna, Germany. Formulations are tested for measurable properties including durability, gloss and hydrophobic behaviour, with development also taking material compatibility, regional conditions and professional working processes into account. The company works directly with the automotive industry, car wash operators and industrial customers when developing and refining its chemistry.

Production is also carried out in Unna, where Koch-Chemie mixes its formulations, fills and labels containers and distributes finished products. Its production operation works within DIN EN ISO 9001 quality management and DIN EN ISO 14001 environmental management systems. This combination of in-house development, manufacturing and a clearly defined product system is a substantial part of what separates Koch-Chemie from brands that primarily source and market third-party formulations.

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