
P&SUndressed Tire Prep
Updated · 6 ingredients analyzed
$0.12BEST $/OZ
A dilutable alkaline tire cleaner formulated to remove embedded road grime and prepare tire surfaces for dressing applications. P&S Undressed Tire Prep ranks #1 for value among 55 wheel cleaners based on effective price per ounce after dilution.
Key Chemistry
pH
9
Active Mechanism
alkaline saponification
Surfactants
3 (anionic, nonionic)
Expert Analysis
Uses sodium triphosphate as the primary alkaline builder at pH 9, creating conditions that break down oily road films and embedded contaminants. The anionic and nonionic surfactant blend provides detergency for lifting loosened soils, while the alkaline chemistry brightens tire sidewalls and raised lettering.
Key Differentiators
- •Higher sodium triphosphate concentration (2-7%) than typical tire cleaners for enhanced degreasing
- •Biodegradable formulation with simple 6-ingredient composition
Ingredients
Triphosphoric acid, sodium salt
2–7%
CAS: 7758-29-4Cleaning agent
2-Propanol, 1-(2-butoxy-1-methylethoxy)-
1–3%
CAS: 29911-28-2Solvent
Dipropylene glycol monomethyl ether
1–3%
CAS: 34590-94-8Solvent
Alkyldiphenyloxide Disulfonate
1–3%
CAS: 119345-04-9Surfactant
Ethoxylated Alcohol Mixture
2–7%
CAS: 66455-15-0 / 68551-12-2Surfactant
(C10-16) Alkyl alcohol ethoxylate, sulfated, sodium salt
1–3%
CAS: 68585-34-2Surfactant
Safety Profile
Signal Word
DangerEye Hazard
Causes serious eye damageSkin Hazard
Irritation not expectedCorrosive to Metals
YesFlammable
No




