Coatings for cars interiors and plastic parts
05/01/2026
Protecting the interior of a car is a top concern for every driver. Whether it’s the seats, door panels, or dashboard, accidents can happen in an instant. Spills, scratches, stains, or fading from sunlight can all take a toll on your car’s interior over time. That’s why safeguarding the inside of your car is just as essential as protecting its exterior. By taking preventive measures, you not only preserve the look and feel of your vehicle but also maintain its value and comfort for years to come.
Difficulties of protecting a car interior
Protecting the surfaces inside a car is no small task. Exposed daily to sunlight, textiles and plastic parts are particularly vulnerable to damage. Prolonged UV exposure can cause discoloration, cracking, or brittleness over time.
The sun is certainly your first enemy, but everyday items can also take their toll. Buttons, dashboards, and panels are easily scratched by keys, bags, fingers, or even jewelry such as rings. Textured surfaces trap dust and dirt, making cleaning a constant challenge. Even when you attempt to clean them, harsh products can leave streaks, residues, or, worse, cause further damage.
While plastic parts require attention, textiles and leather deserve equal care. Most seats are made of these materials, which are particularly susceptible to spills that can quickly leave stains or lingering odors : often difficult to remove without professional tools. Discoloration can occur not only from sunlight but also from friction, like jeans rubbing against the fabric. Textiles are delicate, making them prone to unintentional damage. Leather, too, can dry out, crack, or fade if not regularly conditioned.
In short, keeping a car’s interior in pristine condition requires constant care and attention, as every surface faces its own unique challenges.
How to keep your car’s interior clean and protected ?
Coatings are a must when thinking about keeping the interior and the exterior clean.
ThreeBond 6504F is a protective coating designed for unpainted plastic components. In modern vehicles, many painted parts are being replaced with unpainted plastic components, particularly as body panels become lighter and SUVs gain in popularity. Unlike pre-painted parts, unpainted plastic lacks a protective film, making it highly susceptible to chemical damage from UV rays, rain (and its acidity), and windscreen washer fluid, as well as physical damage from dust, debris, or car washes.
Applying ThreeBond 6504F to unpainted surfaces helps preserve their texture and maintain a “like-new” appearance for an extended period. Additionally, when applied to already damaged parts, the coating can restore and rejuvenate their look, leaving them refreshed and protected.
ThreeBond 6504F is suitable for a wide range of plastic components, both inside and outside the vehicle. Interior applications include mainly door panels, dashboards, armrests, and speaker grilles, while exterior uses cover bumpers, rocker panels, mirror caps, and even door handles. It also restores the color of faded plastic, making it look almost like new.
For your car’s interior textiles, ThreeBond 6639E, also known as INTERIOR GUARD, is the perfect solution to protect your precious seats from spills and everyday accidents. This coating forms a protective film on textiles and leather, repelling liquids and making cleaning your vehicle’s interior quick and easy.
It also offers excellent resistance to rubbing and abrasion, reducing the risk of discoloration caused by clothing or regular use. ThreeBond 6639E comes in a convenient spray form, making it simple to apply to any surface you wish to protect. Easy to use and highly effective, it’s a true game-changer for maintaining your car’s interior durability and appearance.
Modern vehicles are increasingly using unpainted plastic components and delicate textiles, making interior protection more important than ever. From dashboards and door panels to leather seats and speaker grilles, every surface is exposed to the sun, spills, dust, and everyday wear and tear.
With solutions like ThreeBond 6504F for unpainted plastics and ThreeBond 6639E (INTERIOR GUARD) for textiles and leather, protecting your car’s interior has never been easier. These coatings preserve textures, repel liquids, resist abrasion, and even restore the look of damaged surfaces, keeping your car looking as new for longer.
Investing in interior protection isn’t just about aesthetics : it’s about maintaining comfort, durability, and value. Whether it’s a busy family car or a prized SUV, the right care ensures your vehicle remains as stylish and well-maintained on the inside as it is on the outside.
Features
TB6604F
Coating for uncoated resin parts
- Gloss restoration agent for uncoated exterior resin parts
- Coating with this agent suppresses whitening and dullness of uncoated resin parts due to aging.
- Organosilicon compounds react with moisture in the air to form a tough, highly adhesive film with a strong three-dimensional network structure.
TB6639E
Interior guard
- Maintains that new car appearance for an extended period.
- Features excellent antifouling performance. Reduces adhesion of skin oil, cosmetic products, and other contaminants, making maintenance easier.
- Excellent water resistance
- Excellent friction and wear resistance reduce the damage caused by color transfer and rubbing of denim.
- Registered as an industrial product with antibacterial properties with the Society of International sustaining growth for Antimicrobial Articles (SIAA)
