LAST-A-FOAM™ TR-24 is a rigid polyurethane foam designed for marine FRP composite applications, offering high compressive and shear strength for structural components such as transoms, hard points, and motor mounts. It has a density of 24.0 pcf (384 kg/m³), closed-cell content of 97.5%, and a thermal conductivity of 0.453 BTU·in/²°F·h (0.065 W/m·K) at 75°F. The material is self-extinguishing per UL94 Section 7 and demonstrates compressive strengths ranging from 1090 to 2368 psi depending on temperature and orientation. Tensile strength is 921 to 1036 psi, shear strength is 885 to 890 psi, and flexural strength is 1316 to 1334 psi. It exhibits a Shore-D hardness of 47.6, coefficient of thermal expansion of approximately 3.2 × 10⁻⁵ in/in/°F, and a glass transition temperature of 256°F. Tumbling friability is 0.9% by weight loss after 20 minutes at 60 rpm.
LAST-A-FOAM® TR-Series Marine FRP high-density polyurethane foams are specially formulated to meet the physical property demands of the FRP-composite boat builder at a competitive price. LAST-A-FOAM® TR-Series Marine FRP foams allow boat designers to replace wood components with a top-quality, non-decaying product. This product is fully compatible with fiberglass-laminatin
LAST-A-FOAM® TR-Series Marine FRP Foams are made in a range of densities to allow the designer/engineer to match physical properties with structural needs. Economy is achieved by using materials matched to the stresses they are expected to encounter. Typical Application Areas:
General Plastics Manufacturing Company will manufacture CNC-machined, finished parts for production boat builders. Transoms, stringers, and other special shapes are accurately and quickly cut on our modern production machinery.
We can work from CAD files in IGES-format, or digitize an existing part or flat-pattern layout to get the proper part configuration. We optimize material use for best yield, and can supply parts in kits to allow easy use in the factory. Manufacturers get top-quality high-density foam in ready-to-use form, with no wasted time or materials. We are happy to provide quotations for this service on request.
| General Plastics Manufacturing Co. | |
|---|---|
| Product Category | Foams and Foam Materials |
| Product Number | LAST-A-FOAM® TR-24 TDS |
| Product Name | Marine High Density Polyurethane Foam |
| Type | ClosedCell; Rigid; Foam |
| Form / Shape | Stock Shape / Machining Grade; Slab / Block |
| Material / Composition | Polymer / Plastic; Polyurethane |
| Applications | Composites or Structural; Marine |