Coolant concentrate that protects the engine against freezing, overheating and corrosion – mixed in a ratio tailored to the climate and application.
HEPU® P999-G13 Coolant Concentrate G13 (Violet/Purple)
HEPU® P999-G13 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-G13 is the violet/purple, G13 type long-life concentrate of the series, built on a Si-OAT formula – organic acid technology reinforced with a silicate additive package. It offers excellent protection against frost, overheating, corrosion and scaling, and is particularly recommended for light-metal (aluminium) engines that need enhanced aluminium protection at higher temperatures. Mixed 1:1 with demineralised water it protects down to −37 °C.
Key features
Benefits
| Parameter | Value |
|---|---|
| Product type | Coolant / antifreeze — G13 full concentrate (Si-OAT, long-life) |
| Inhibitor | Organic acid technology + silicate additive package |
| Colour | Pink / Purple (violet) |
| Odour | Mild |
| Density at 20 °C | 1.12 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 −37 °C |
| Flash point | 111 °C |
| Auto-ignition temperature | > 400 °C |
| Flammability | Non-flammable |
| Vapour pressure at 20 °C | 0.06 mmHg |
| VOC content | 0.00 % |
| Solubility in water | Miscible |
| Free of | Borate, nitrite, amine, phosphate |
| Recommended for | Light-metal (aluminium) engines, high-temperature aluminium protection |
| Application | Engine coolant (mix with water before use) |
HEPU® P999-G13 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 | −37 °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-G13 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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