Divinycell® H80 PVC rigid foam sheet, grid-scored

Divinycell® H80 grid-scored is a high-performance PVC structural foam core material designed for use as a sandwich core in composite structures. Precision grid cuts in both longitudinal and transverse directions provide excellent conformability, allowing the material to adapt easily to highly curved and complex geometries.

The cuts extend through nearly the full thickness of the sheet, ensuring very good drapeability on contoured moulds and curved surfaces. A lightweight glass fibre scrim bonded to the reverse side stabilises the individual segments while ensuring easy and robust handling during processing.

Divinycell® H80 is an established PVC structural foam widely used in lightweight composite construction, including marine, transportation, wind energy and industrial sandwich applications.

Benefits

• High formability for curved and complex shapes
• Low weight combined with high stiffness in sandwich constructions
• Easy and robust handling during processing
• Well suited for hand lay-up and vacuum pressing processes
• Reliable bonding and consolidation of structural skins under vacuum
• Versatile core material for a wide range of composite applications

Typical Applications

Divinycell® H80 grid-scored is used wherever lightweight yet stiff sandwich structures are required, including:

• Wind turbine blades and nacelles
• Boat hulls and deck structures
• Vehicle body panels and fairings
• Tanks and containers
• Machine covers and industrial cladding
• Radomes and lightweight panels

Technical Data

Sheet Size
1220 × 813 mm

Grid Pattern:

• Grid spacing (centre-to-centre): 30 mm
• Groove depth: sheet thickness minus approx. 2 mm
• Groove width: approx. 0.9 mm

Processing

Suitable for:

• Hand lay-up
• Vacuum pressing process
• Sandwich bonding applications

The grid-scored version is generally suitable for vacuum infusion processes. However, for improved resin distribution, the following variant is often recommended: Divinycell® H80 Grid-Scored + Grooved (Q200)

Typical Sandwich Construction

• Glass fibre or carbon laminate
• Divinycell® H80 grid-scored core

This construction results in lightweight, stiff and mechanically durable sandwich components with high flexural rigidity.

General information about Divinycell® H:

Divinycell® H rigid PVC foam sheet offers excellent mechanical properties combined with low weight.

• Low water absorption
• Superior damage tolerance
• Excellent thermal properties
• Thermoformable
• Fast and easy to process
• Good chemical resistance
• Excellent fatigue properties
• Very low resin uptake
• Good temperature resistance
• Compatible with most common glues and resin systems

Divinycell® H is found to comply with

• DNV rules for classification – Ships
• DNV rules for classification – High speed and light craft
• DNV class programme DNV-CP-0084 – Type approval – Sandwich core materials

---> DNV Approval

Application:
Divinycell® H has a proven track record in virtually every application area where sandwich composites are employed, including the marine (leisure, military and commercial), land transportation, wind energy, civil engineering/infrastructure and general industrial markets.

Processing:
Continuous operating temperature is typically -200 ºC to +70 ºC. The foam can be used in sandwich structures, for outdoor exposure, with external skin temperatures up to +85 ºC.

Maximum processing temperature is dependent on time, pressure and process conditions.

Mechanical data of Divinycell® H80:

All values measured at +23 °C
¹ Properties measured perpendicular to the plane.
Nominal value is the average value of a mechanical property at a nominal density.
Minimum value is a minimum guaranteed mechanical property a material has independently of density.

Technical characteristics of Divinycell® H80:

¹ Typical values
² Thermal conductivity at  +20°C
³ Standard deviation is  0.045