Table of Contents
Overview
Lifeboat Polyurethane Pour Foam uses a two-part, closed-cell formulation with a cured density of 2 pounds per cubic foot. Also, the 1-gallon kit supports flotation, cavity filling, insulation, deep pours, and soundproofing applications.
The foam is designed to expand from a mixed liquid into a rigid, lightweight fill. It supports basic noise reduction within hull cavities and enclosed compartments. However, its role focuses on filling space and supporting layered noise-control methods.
Key takeaways
- The kit contains equal parts A and B for mixing before application.
- One kit expands to fill up to four cubic feet of volume.
- The cured structure reaches a closed-cell rate of 95 to 98%.
- The extended-time formula allows up to 20 seconds for mixing and pouring.
- The rigid foam can be cut, carved, or sanded after curing.
- The formulation supports flotation, insulation, cavity filling, and basic sound attenuation.
What the product is designed to do
This two-part polyurethane pour foam supports boat buoyancy, dock flotation, cavity filling, insulation, and deep-pour work. Also, its expansion fills enclosed spaces while keeping the cured structure lightweight.
The closed-cell structure resists water infiltration after curing. As a result, the foam supports applications involving fresh water, saltwater, gasoline, oil, and common marine contaminants.
For sound control, the material functions as a rigid filler inside hull cavities or enclosed compartments. In addition, the supplied text connects its density with airborne-noise reduction and structural-vibration damping.
Good soundproofing depends on matching the material to the sound path. This foam supports cavity filling and basic attenuation rather than serving as a complete soundproofing assembly.
Materials, dimensions, and technical details
| Detail | Specification |
|---|---|
| Material | Two-part closed-cell polyurethane foam |
| Kit size | 1 gallon |
| Cured density | 2 pounds per cubic foot |
| Expansion volume | Up to four cubic feet per kit |
| Closed-cell rate | 95 to 98% |
| Mixing and pouring window | Up to 20 seconds |
| Application temperature | 75°F or above |
| Compatible resin coatings | Polyester, epoxy, and vinyl ester |
The cured foam forms a rigid structure that remains lightweight within filled spaces. Also, the material can accept compatible resin coatings for further finishing or protective layering.
Installation and placement notes
Prepare equal parts A and B before mixing. Next, organize the cavity, tools, and pouring route before starting the chemical reaction.
The extended reaction window allows up to 20 seconds for mixing and pouring. However, the short working period still requires controlled preparation and prompt placement.
Use smaller batches for larger or deeper cavities. As a result, each pour can spread more evenly while reducing the chance of overexpansion or internal voids.
Apply the foam when the ambient temperature reaches 75°F or above. In addition, clean surfaces support adhesion and consistent cell formation during curing.
The liquid expands after mixing and hardens into a rigid fill. Once cured, the closed-cell expanding foam can be cut, carved, or sanded around surrounding materials.
Performance characteristics described
The foam expands to fill up to four cubic feet from one kit. Also, its rigid cured form supports flotation and void-filling applications where low weight remains important.
A closed-cell rate of 95 to 98% supports water resistance and thermal insulation. In marine settings, the cured material also resists gasoline, oil, and common contaminants.
For noise control, the foam supports basic absorption and isolation within enclosed compartments. However, the supplied performance wording does not define STC, NRC, or measured decibel reduction.
STC concerns airborne sound passing through an assembly. NRC concerns sound absorption within a space. This foam instead focuses on cavity filling, insulation, and basic sound attenuation.
The material may support a layered approach around inboard engine enclosures or underdeck areas. In addition, its rigid fill can occupy open cavities that otherwise remain part of a sound path.
A complete assembly may also use mass, damping, decoupling, or sealing. This rigid cavity-filling foam specifically contributes an expanding closed-cell fill within the supported applications.
Pros
- Expands to fill up to four cubic feet per 1-gallon kit.
- Uses an extended-time formula for controlled mixing and pouring.
- Reaches a closed-cell rate of 95 to 98% after curing.
- Supports flotation, insulation, cavity filling, and basic sound attenuation.
- Can be cut, carved, or sanded after curing.
- Accepts polyester, epoxy, and vinyl ester resin coatings.
Cons
- Requires preparation because the working window reaches only 20 seconds.
- Works best at an ambient temperature of 75°F or above.
- Large or deep cavities require smaller, controlled batches.
- Sound-control wording does not include STC, NRC, or decibel measurements.
FAQ
What type of foam comes in the kit?
The kit uses a two-part, closed-cell polyurethane formulation. Equal parts A and B react after mixing and expand into rigid foam.
How much volume can one kit fill?
One 1-gallon kit expands to fill up to four cubic feet. Actual placement requires controlled mixing and pouring within the working window.
Can the foam support soundproofing work?
The formulation supports soundproofing, basic attenuation, airborne-noise reduction, and structural-vibration damping within enclosed cavities. It also integrates with layered noise-control methods.
Does the foam resist water after curing?
The rigid closed-cell structure resists water infiltration after curing. This characteristic supports flotation and cavity filling in fresh-water and saltwater environments.
What temperature supports application?
The recommended ambient temperature is 75°F or above. Lower temperatures may affect curing time and the resulting foam structure.
Can the cured foam be shaped or coated?
The cured 2-pound-density polyurethane foam can be cut, carved, or sanded. It also supports polyester, epoxy, and vinyl ester resin coatings.