With its unique combination of features - low weight /high strength, wide processing envelope and high temperature performance - prepreg compatible Divinycell HP is ideal for a wide range of applications in the marine, wind energy, transportation and industrial markets.

Temperature Performance
With its high processing temperature, Divinycell HP can be processed at a much higher temperature than other polymer core materials in general use, making it suitable for not only low but also medium temperature prepregs.

Its elevated temperature performance is not just beneficial to prepreg users. Its high residual strength and good dimensional stability also make it ideal for vacuum bagging, infusion and RTM (resin transfer molding). HP's elevated temperature performance also extends to the 'in service' life of the component. Divinycell HP will retain a high percentage of its mechanical properties despite long term exposure to high ambient temperatures.

Strength Performance
Divinycell HP exhibits at both ambient and elevated temperatures impressive compression and shear properties (normally the most important for a sandwich core material) that are better than other commonly used ‘elevated temperature’ core materials. The figures for shear strain show that HP has good ductility and energy absorption characteristics. Testing has shown that HP also outperforms linear cores in terms of slamming resistance.

Adhesion
Divinycell HP also excels is in adhesion. Peel tests have been performed using commonly used resin systems and prepregs with superior results to other cores used for prepregs.

Dimensional Stability
The dimensional stability of Divinycell HP is also exceptional. Taking HP 80 as an example, at 60°C dimensional changes are hardly measurable, less than 0.1%. Even at 90°C, the dimensional change for HP 80 is still less than 0.5%.

Other key features of Divinycell HP include excellent chemical resistance (including styrene), low water absorption and good thermal / acoustic insulation.

Full details of the core's properties are contained in the comprehensive Divinycell HP Technical Manual that can be downloaded here.

Wide Density Range
Divinycell HP is also available in a wide range of densities and thicknesses. Currently HP is available in densities from 65 to 250 Kg/cub.m. enabling designers and fabricators to optimize their structures.

Standard & Special Finishing
Divinycell HP sandwich core can be supplied with probably the widest range of finishes available in the industry. The aim is to facilitate and speed core installation, enhance component quality / performance and to meet specific process requirements. Standard finishes include grid-scored, double cut and 'infusion' grooved/perforated forms.

Ready-Made Kits
For those involved in series production, Divinycell HP can be supplied in ready-made construction kits where each piece is pre-cut, shaped, as necessary, and numbered to fit exactly into its designated place in the mold. This substantially reduces build times, saves labor costs, improves quality and cuts waste.