by SpecialChem

HEUCOPHOS® SRPP

Technical Datasheet | Supplied by Heubach

HEUCOPHOS® SRPP by Heubach is a zinc-free corrosion inhibitor. It is a high-performance pigment based on modified strontium aluminum polyphosphate hydrate. It is designed for powder coatings and UV cured systems.

It possesses higher phosphate content compared to most orthophosphates, allowing excellent long-term protective behavior.
It is a special adjustment of HEUCOPHOS® SAPP, and is used as a replacement of chromates in high-performance applications, mainly in coil coatings and aircraft primers.
It exhibits high electrochemical effectiveness due to altered chemical structure design.
HEUCOPHOS® SRPP is suitable for water-based coatings based on alkyd emulsions, 2K epoxies, 1K & 2K polyurethanes, silicone resins, acrylic & modified acrylics and butadiens (with low or no VOC).
It is also used in solvent-based coatings based on high solids alkyds & epoxies (with low or no VOC), 2K epoxies, 2K- and high solids polyurethanes.

HEUCOPHOS® SRPP Properties

Property

Value & Unit

Test Condition

Test Method

Conductivity

< 1500 µS/cm

ISO 787-14

Density

2.8 g/cm³

ISO 787-10

Loss on Ignition

9.5 - 15 %

(At 600°C)

ISO 6745

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