APC IN Interior Cleaner Concentrate

TENZI ProDetailing APC IN is a pH 13 alkaline interior all-purpose cleaner concentrate with four published dilutions, from 20% for stain removal down to 2% for plastics and laminates, covering textile, leather, wood, plastic, rubber, metal and carbon.

One concentrate that replaces a shelf of single-purpose interior sprays. APC IN is strongly alkaline, so it breaks down the organic soiling that actually makes an interior look tired — body oils, sweat, food and drink spills, ground-in traffic film. What makes it worth the space is the dilution ladder: mix it at 20% and it lifts set-in stains, drop to 2% and it is gentle enough for laminated trim and plastics. Same bottle, four jobs.

Why it works

• Four published dilutions: 20% stains, 10% leather and wood, 5% textile, 2% plastics
• Cleans textile, plastic, rubber, leather, wood, metal and carbon trim
• pH 13 — strongly alkaline, built for heavy organic soiling
• Concentrate, so one 700ml bottle makes a great deal of working solution
• Leaves a pleasant scent

When to use it

On any interior that has been lived in. Deep-clean at the strong end, routine wipe-downs at the weak end, and always after vacuuming rather than before.

How it compares to the rest of the TENZI range

APC IN is the interior concentrate. APC OUT is its exterior counterpart at pH 14 and the two are absolutely not interchangeable — APC OUT will damage interior materials. TENZI also make APC IN GT, the same cleaning system pre-diluted and ready to use, which is unclassified and milder if you would rather not mix.

Specification

Straight from us

pH 13 is not a number to ignore. Get the dilution right for the surface and test first — TENZI specifically warn about printed surfaces without a protective layer, which is where door-card graphics and badge text live. Start weaker than you think, because you can always go again.

What it won't do

It is not a leather conditioner — it cleans, it does not feed. It is not an exterior product, and it will not remove non-organic contamination like tar or adhesive.

Frequently asked questions

What dilution do I use for APC IN?

TENZI publish four: 20% (200ml per litre) for stains and deep cleaning, 10% for leather or wood, 5% for textile, and 2% (20ml per litre) for plastics or laminates.

What is the pH of APC IN concentrate?

pH 13 — strongly alkaline. The ready-to-use APC IN GT version publishes no pH and is not classified as hazardous.

Can I use it on leather?

Yes, at the 10% dilution. Follow with a leather conditioner, because cleaning alone leaves leather stripped.

Is it safe on printed surfaces?

Use caution. TENZI warn specifically about printed surfaces without a protective layer, and say to always test a small area first.

Can I use APC IN on the outside of the car?

No. APC OUT is the exterior product. The two are formulated for completely different materials.

Availability

TENZI APC IN Interior Cleaner Concentrate 700ml is in stock at Blade Performance and ships across the United Kingdom and Ireland. Browse the full TENZI range or the TENZI ProDetailing range.