General Plastics LAST-A-FOAM® R-3325 Submersible Foam Series

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General Plastics LAST-A-FOAM® R-3325 Submersible Foam Series
Categories:	Other Engineering Material; Composite Core Material
Material Notes:	Product Description: LAST-A-FOAM® R-3300 is an easy-to-machine, pressure-resistant foam that provides buoyancy for underwater depths tested to 2,400 feet, when coated. The closed-cell structure of this series is uniquely engineered to withstand penetration by water and resist hydrostatic pressure. LAST-A-FOAM® R-3300 submersible foam is optimal for shallow to mid-water subsea buoyancy systems, marine and underwater robotics applications. Features & Benefits: Provides buoyancy with depths to 1,200 feet uncoated and 2,400 feet coated Excellent mechanical and insulation properties Easy to machine, coat, and paint Dimensionally stable Resistant to hydrostatic pressure High impact resistance Biologically inert Oil, grease, and solvent resistant Cost-effective solution Does not rot or decay Performs in freshwater and saltwater Compatible with many types of adhesives Applications: Underwater buoyancy Underwater robotics (ROV/AUV) Semi-submersible craft Pipeline flotation Subsea mooring buoyancy Buoyancy for assembly components in weightlessness simulation pools Underwater pumps for offshore drilling rigs Core material for resin-transfer molding Information provided by General Plastics Manufacturing Company
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Physical Properties	Original Value	Comments

Density	0.400 g/cc	ASTM D1622

Mechanical Properties	Original Value	Comments
Hardness, Shore D	46	cut foam surface; ASTM D2240
Tensile Strength	1479 psi	Perpendicular to Rise; ASTM D1623
Flexural Strength	1875 psi	Rise Parallel to Specimen Width; ASTM D790 Method 1-A
	1876 psi	Rise Parallel to Beam Thick.; ASTM D790 Method 1-A
Flexural Modulus	53409 psi	Rise Parallel to Beam Thick.; ASTM D790 Method 1-A
	53981 psi	Rise Parallel to Specimen Width; ASTM D790 Method 1-A
Compressive Strength	952 psi @Temperature 93.3 °C	Perpendicular to Rise; ASTM D1621
	973 psi @Temperature 93.3 °C	Parallel to Rise; ASTM D1621
	1735 psi @Temperature 23.9 °C	Perpendicular to Rise; ASTM D1621
	1748 psi @Temperature 23.9 °C	Parallel to Rise; ASTM D1621
Compressive Modulus	30511 psi @Temperature 93.3 °C	Perpendicular to Rise; ASTM D1621
	31973 psi @Temperature 93.3 °C	Parallel to Rise; ASTM D1621
	45704 psi @Temperature 23.9 °C	Perpendicular to Rise; ASTM D1621
	48671 psi @Temperature 23.9 °C	Parallel to Rise; ASTM D1621
Shear Modulus	2.83 ksi	Rise Parallel to Specimen Thick.; ASTM C273
Shear Strength	0.327 ksi	Rise Parallel to Specimen Thick.; ASTM C273

Thermal Properties	Original Value	Comments
CTE, linear	32.0 µin/in-°F @Temperature -45.6 - 93.3 °C	GP Method
Thermal Conductivity	0.415 BTU-in/hr-ft²-°F	ASTM C518
Glass Transition Temp, Tg	260 °F	ASTM E1824

Descriptive Properties
Closed Cell Content	98%	ASTM D6226
Depths Coated	732 meters	GP Method based on ASTM D570
Depths Uncoated	366 meters	GP Method based on ASTM D570
Hydrostatic Testing	Pass, <5% Wt Gain	at 530 psi
Tumbling Friability (%)	0.5	20 mins @ 60 rpm, ASTM C421

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PGENR004 / 186790

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