The Best TFR for Pressure Washers and Snow Foam Lances

Ask ten valeters what the best traffic film remover is and you'll get ten brand names — but the honest answer is a specification, not a label: high active content, non-caustic chemistry if anything soft is being washed, and a concentrate that meters properly through a chemical feed or foam lance. As a manufacturer, we build Caravan Pro™ in East Kilbride to exactly that spec for leisure vehicles and tow cars, so here's how to judge any TFR — ours included — and how to run it through your machine.

What actually makes a TFR "the best"?

Four things, in order of importance:

• Active content. This is the number nobody prints and everybody should. A 70%+ active concentrate diluted at 1:20 delivers more working chemistry than a 15% "ready mixed" product used neat. Cheap TFR is mostly water with good branding.
• Caustic or not. Caustic formulas clean hard but damage GRP, acrylic, seals, decals and wax over repeated use. For anything other than bare fleet steel, non-caustic wins — the full argument is in our caustic vs non-caustic comparison.
• Foam behaviour. A good TFR builds a stable foam blanket through a lance so it clings and dwells rather than sheeting off vertical panels in seconds.
• Cost per wash, not per bottle. Caravan Pro's 5L makes 100 litres of ready-to-use at 1:20 — about 25p per full caravan wash. Judge every product on that maths.

What dilution through a pressure washer?

Machines meter chemical differently, so think in terms of final pickup rather than bottle ratios:

How do you snow foam properly?

1. Rinse loose grit off first.
2. Foam the whole vehicle bottom to top and let it dwell 3–5 minutes — cling time is the entire point of foam. Don't let it dry on the panel; re-mist in hot sun.
3. Agitate lower panels, arches and streaked areas with a soft brush while the foam's still wet.
4. Rinse top to bottom with the chemical feed off, keeping the lance moving over seams.

On a caravan or motorhome, follow the panel-safety rules in our caravan cleaning guide — fan pattern, distance from seals and vents, no pencil jets near decals.

Where does Caravan Pro sit, honestly?

It's the best choice we know of for leisure vehicles, tow cars and anything with soft surfaces: 70%+ actives, non-caustic, foams well through a lance at 1–2% pickup, and it deposits a light carnauba and synthetic wax as you rinse — up to six months of protection without a separate rinse-aid. Where it's not the answer: heavy plant, oily chassis and commercial fleet degreasing, where a caustic product genuinely earns its keep. Every batch is tested at our East Kilbride factory before dispatch, and it's been that way since we started manufacturing in 2017.

Frequently asked questions

Is snow foam and TFR the same thing?
Mostly, yes. "Snow foam" is usually TFR (or a lighter surfactant blend) run through a foaming lance. The lance changes delivery, not chemistry.

Can TFR damage a pressure washer?
Not a properly formulated one at correct dilution. Rinse the chemical system through with clean water after use, whatever product you run.

What pickup rate should the machine draw?
1–2% is the sweet spot for a concentrate like Caravan Pro — a light, even covering that dwells without waste.

Do I need a separate wax stage after TFR?
With most TFRs, yes, because they strip protection. Caravan Pro replaces it in the same wash with built-in carnauba and synthetic wax.