Divinycell® HCP30

1 of 49 products in this brand

Divinycell HCP grade meets the demand for a high performance, low density buoyancy material with excellent characteristics. It is widely used in submarines, subsea buoyancy units, ROVs, diving bells and impact protection structures. As a result of its excellent hydraulic compressive properties and closed cell structure, it has very low buoyancy loss and water absorption under long-term loading conditions. HCP stands for Hydraulic Crush Point and is defined as the point of pressure in Bar, where the material when subjected to an increasing pressure of 1-2 Bar/sec has lost 5% of its initial volume. The design of subsea buoyancy applications is complex and consideration has to be given to the required buoyancy loss and updrift over the expected lifetime and service conditions, with respect to long and short term hydraulic compressive creep, water absorption and hydraulic fatigue. Please contact Diab Technical Services for design proposal.

Functions: Core Material

Chemical Family: Vinyls, Vinylics & Vinyl Derivatives

Technical Data Sheet

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Identification & Functionality

Chemical Family: Vinyls, Vinylics & Vinyl Derivatives
Polymer Name: Polyvinyl Chloride (PVC)
Composite Materials Functions: Core Material
Technologies: Composite Materials
Product Families: Composite Materials — Core Materials
Foam Cores

Features & Benefits

Materials Features: Chemical Resistant,
High Impact Resistance,
Low Water Absorption,
Temperature Resistance
Product Highlights: Excellent buoyancy performance

High impact resistance

Low water absorption

Good insulation properties

Thermoformable

Superior damage tolerance

Fast and easy to machine

Good chemical resistance

High temperature resistance

Applications & Uses

Markets: Automotive & Transportation
Applications: Automotive & Transportation — Transportation
Marine
Composites Processing Methods: Hand Lay-up

Properties

Mechanical Properties

	Value	Units	Test Method / Conditions
Compressive Strength Nominal	5.4	MPa	ASTM D 1621
Compressive Strength	min. 4.5	MPa	ASTM D 1621
Tensile Strength Nominal	7.1	MPa	ASTM D 1623
Tensile Strength	min. 6.3	MPa	ASTM D 1623
Shear Strength Nominal	3.5	MPa	ASTM C 273
Shear Strength	min. 3.2	MPa	ASTM C 273
Shear Modulus Nominal	73	MPa	ASTM C 273
Shear Modulus	min. 65	MPa	ASTM C 273
Shear Strain Nominal	45	%	ASTM C 273
Density Nominal	200	kg/m3	ISO 845
Density	max. 230	kg/m3	ISO 845
Density	min. 180	kg/m3	ISO 845
Hydraulic Crush Point	30-39	Bar	—
E-modulus (extensometer) Nominal	310	MPa	ASTM D 1621
E-modulus (extensometer)	min. 265	MPa	ASTM D 1621