Flotation Foam Supplier

Wholesale Supplier of Flotation Foam

Flotation foam is an important, but often overlooked component when working on, building or repairing a boat. Flotation foam serves a few different purposes that if not considered properly could come back to bite you. At Reinforced Plastics Lab, we sell reliable, and affordable, flotation foam. 

For more information about all that we have to offer, please contact us today. When you reach out to us, we can provide you with a fair and accurate quote. And ask about our wholesale ordering! We offer a line of Smooth-Cast products that are liquid plastics with ultra-low viscosity and perfect for these sorts of applications and projects. But only for industrial use! Check out our selection of products in stock.

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How Flotation Foam Works

Flotation foam, in general, is any type of foam that is designed or repurposed for use in marine vessels and docks for the purpose of improving its buoyancy. Other key areas of improving are for thermal insulation and for sound deadening. There are generally a few different options, such as in the form of pourable foam, closed-cell foam mats or blocks, and boat foam pods that can easily attach to the outside of a boat.

Pourable foam is one of the most common types, because it forms a great mechanical bond with aluminum hulls that effectively hold everything in place. On top of that, this foam is waterproof, so it will not absorb any water as long as the foam remains in good, working condition.

And sometimes using a combination of pourable foam and closed-cell foam sheets is the way to go for best results. It always depends on the situation and how you want to accomplish the job. But one thing is for sure and that it is great for use with marine applications and can prevent a boat from fully sinking.

Applications for Flotation Foam

Flotation foam is used in numerous industries where buoyancy, insulation, and structural reinforcement are required. Common applications include:

  • Boat construction and restoration
  • Boat hull flotation chambers
  • Dock and floating platform repairs
  • Pontoons and personal watercraft
  • Marine manufacturing
  • Composite fabrication
  • Void filling in fiberglass structures
  • Rotational molding applications
  • Industrial composite reinforcement

Because pourable flotation foam expands to fill irregular cavities, it creates a secure fit that helps maximize flotation while providing additional rigidity within the structure.

3 Flotation Foam Benefits

Flotation foam offers some useful benefits to those that correctly utilize it. Here are some of the crucial benefits you will get when you use this material.

  1. It provides a more permanent flotation for boats and docks.
  2. Provides thermal insulation, which is important when using in hot and cold extremes for year-round boat care.
  3. Sound deadening.

When applying flotation foam, you typically do so by applying it to boat hulls either through open or closed-cell mats and blocks. Or through special marine pour foam which forms a mechanical seal with the hull of boats. Consider the method that best works with your scenario.

3 Primary Types of Flotation Foam

When it comes to flotation foam, there are three primary types you can use. Let's take a look at these types of foam.

1) Polyurethane

Polyurethane is a very popular choice for flotation foam. It does not absorb any water or chemicals, and is also available in liquid form. So when you pour this type into an air chamber, it will mold perfectly to the boat. It essentially mechanically bonds to the hull for a perfect seal. The only con to this foam is that it is prone to abrasion, so over time it can degrade.

2) Polyethylene

Polyethylene is a great choice for flotation foam, since it works as good as polyurethane but without any of the potential risk of abrasion. You can compress polyethylene or even bend it to better fit some curved places. Polyurethane is rigid to complete that task.

3) Polystyrene

Not a very popular type of foam, since it often soaks up water, as well as absorbing other types of chemicals and glue. Due to these conditions, it is a danger when a gas leak occurs, since it can soak up the gas and become a fire hazard.

Frequently Asked Questions About Flotation Foam

Here are some important frequently asked questions about flotation foam to help with your buying process.

What is flotation foam used for?

Flotation foam is commonly used in boat construction, marine repairs, floating docks, pontoons, personal watercraft, and fiberglass composite projects. It fills enclosed cavities within a structure to provide additional buoyancy, improve stability, and help meet flotation requirements for many types of watercraft.

Can flotation foam absorb water?

High-quality closed-cell flotation foam is designed to resist water absorption. While no material is completely impervious under every condition, properly installed closed-cell foam absorbs very little moisture compared to open-cell foam, making it the preferred choice for marine applications.

How do I choose the right flotation foam?

The right flotation foam depends on your specific application, the amount of buoyancy required, and the size of the area being filled. Factors such as foam density, expansion rate, and intended use should all be considered. Our team can help you determine the best flotation foam product for your project.

Can flotation foam be used in fiberglass boats?

Yes. Flotation foam is commonly used in fiberglass boats during both new construction and restoration projects. It is often installed beneath decks, inside hull cavities, and in other enclosed spaces to improve buoyancy and provide additional structural support.

Does flotation foam add strength to a boat?

While flotation foam is primarily designed to provide buoyancy, it can also increase rigidity by supporting fiberglass panels and reducing flex within certain sections of a boat. However, flotation foam is not intended to replace structural components or serve as the primary source of strength in a vessel.

How long does flotation foam last?

When properly installed and protected within a sealed structure, high-quality closed-cell flotation foam can provide reliable performance for many years. Its resistance to moisture, rot, and deterioration makes it a durable solution for long-term marine use.

Why buy flotation foam from Reinforced Plastics Lab?

Reinforced Plastics Lab supplies premium flotation foam for marine, industrial, and composite applications. We offer high-quality products, competitive pricing, and knowledgeable customer support to help you choose the right flotation foam for your project. Whether you're building a new boat, repairing a vessel, or manufacturing composite products, we have the materials and expertise to help you achieve dependable results.

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