Coolant concentrate that protects the engine against freezing, overheating and corrosion – mixed in a ratio tailored to the climate and application.
HEPU® P999-G12PLUS Coolant Concentrate G12+ (Violet/Purple)
HEPU® P999-G12PLUS is part of the P999 series of HEPU® coolant concentrates for modern cooling systems, from passenger cars to heavy-duty vehicles. Supplied undiluted, it lets the workshop prepare exactly the right mixing ratio for the climate and application, with year-round protection against freezing, overheating and corrosion.
P999-G12PLUS is the violet/purple, G12+ type long-life concentrate of the series, based on organic acid technology (OAT) with special additives for maximum frost protection. It provides excellent protection against corrosion, overheating and calcium (scale) deposits, and additionally suppresses foaming, for all-purpose use in aluminium and cast-iron engines. Mixed 1:1 with demineralised water it protects down to −38 °C.
Key features
Benefits
| Parameter | Value |
|---|---|
| Product type | Coolant / antifreeze — G12+ full concentrate (OAT, long-life) |
| Base | Ethylene glycol (ethanediol) >75–<95 % |
| Inhibitor | Organic acid (carboxylate) technology + anti-foam |
| Colour | Violet / Purple |
| Odour | Mild |
| Density at 20 °C | 1.11 g/cm³ |
| pH at 20 °C | 7.5–9 |
| Freezing point (concentrate) | −12 °C |
| Boiling point | > 170 °C |
| Frost protection (1:1 with water) | down to −38 °C |
| Flash point | > 111 °C (PMCC) |
| Auto-ignition temperature | > 400 °C |
| Flammability | Non-flammable |
| Vapour pressure at 20 °C | 0.1 hPa |
| Solubility in water | Miscible |
| Free of | Nitrite, amine, phosphate, silicate |
| Application | Engine coolant (mix with water before use) |
HEPU® P999-G12PLUS is a concentrate and must be mixed with clean water before filling the cooling system.
Method
Mixing ratio → frost protection
| Concentrate : Water | Frost protection |
|---|---|
| 50 : 50 | −38 °C (verified HEPU figure) |
| ~40 : 60 | ~ −25 °C (approx.) |
| ~60 : 40 | ~ −52 °C (approx.) |
Guidance: keep the concentrate content between 33 % (minimum, for year-round corrosion protection) and 60 % (practical maximum). Higher glycol content does not improve frost protection and reduces heat transfer.
HEPU® P999-G12PLUS is recommended for use according to the following specifications and standards:
Always confirm the coolant type and colour required by the vehicle manufacturer before topping up or mixing with another product.
SAFETY WARNINGS
Hazard-determining components of labelling:
Hazard statements
Precautionary statements
Full details in the Safety Data Sheet (SDS), available for download.
MANUFACTURER AND ENTITY RESPONSIBLE FOR PLACING THE PRODUCT ON THE MARKET
HEPU® Autoteile GmbH
Am Kreuzweg 2, 32689 Kalletal-Hohenhausen
Germany
Safety data sheet / Sicherheitsdatenblatt
Other files / Andere Dateien
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HEPU® Coolant Catalogue
Discover the complete range of HEPU® coolants and coolant concentrates in one catalogue. From high-quality coolant concentrates (P999 series) and ready-to-use coolants (P900 / P888) to windscreen washer fluid, windscreen de-icer and AdBlue – all developed without the addition of nitrites and phosphates and compliant with the specifications of individual vehicle manufacturers.
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