Tag Archives: Liquid Urethane Foam Kit

Liquid Urethane Uses and Differences in Density

When most people hear the term “Liquid Urethane,” they think of a thick, black substance used for coating surfaces. While this is correct, Liquid Urethane comes in many varieties with different purposes. For example, some Liquid Urethanes are designed to be applied very thin while others are much thicker. Additionally, there are variations in terms of density – some liquids are denser than others – which affects how they should be used. In this blog post, we will look at what Liquid Urethane is, what its various uses are, and how density affects its application.


What is liquid urethane and what are its uses


Urethane is a liquid polymer that has a wide variety of uses. It is used in the production of plastics, coatings, adhesives, and sealants. Liquid urethane is also used as an insulation material and as a filler for composite materials. In addition, liquid urethane can be used to create dental implants and prosthetic devices.

How is liquid urethane density measured?


To measure the density of liquid urethane, you’ll need a graduated cylinder and a weight scale. First, weigh the graduated cylinder on the scale to get an empty weight. Then, fill the cylinder with liquid urethane and weigh it again. Subtracting the empty weight from the full weight will give you the total weight of liquid urethane in the cylinder. To calculate the density, simply divide this weight by the volume of liquid urethane in the cylinder. This will give you a density measurement in grams per cubic centimeters (g/cc).


The density of liquid urethane is measured in a variety of ways, depending on the intended use of the urethane. For example, the weight per gallon is often used to calculate the costs of shipping and handling. The pound per cubic foot is also used to calculate the volume of urethane needed for a given job. In both cases, the density of liquid urethane is calculated by dividing the weight of the urethane by its volume.

What factors affect the density of liquid urethane


The density of liquid urethane can be affected by a variety of factors, including its composition, temperature, and pressure. Urethane is a polymer that can be made from a variety of monomers, or small molecules. The type of monomer used will affect the urethane’s density. For example, using a heavier monomer will result in a denser urethane. Temperature can also affect the density of liquid urethane; as temperature increases, the urethane will expand and become less dense. Finally, liquid urethane is usually stored under pressure to keep it from expanding. If the pressure is too high, the liquid urethane can become dense and difficult to work with. By understanding these factors, it is possible to control the density of liquid urethane and choose the right product for your needs.


There are many factors that can affect the density of liquid urethane. The first is the temperature of the liquid urethane. The colder the liquid urethane, the denser it will be. The second factor is the pressure of the liquid urethane. The higher the pressure, the denser the liquid urethane will be. The third factor is the type of liquid urethane. Some types of liquid urethane are denser than others. The fourth factor is the amount of liquid urethane. The more liquid urethane there is, the denser it will be. Finally, the fifth factor is the presence of impurities in the liquid urethane. If there are impurities present, they can make the liquid urethane denser.

Examples of where to use liquid urethane with different densities


There are many different uses for liquid urethane. The material can be used as a sealant, adhesive, or even a casting material. When choosing a liquid urethane, it is important to consider the density of the material. A high-density urethane may be better suited for a heavy-duty application, while a low-density urethane may be more suitable for a lightweight application.


Here are some examples of where to use liquid urethane with different densities:

  • Use a high-density urethane as an adhesive for bonding metal to concrete.
  • Use a low-density urethane as a sealant for gaps and cracks around doors and windows.
  • Use a medium-density urethane as a casting material for creating prototypes or models.
    No matter what the application, liquid urethane can be a versatile and durable solution. By carefully selecting the right density for the job, it is possible to achieve excellent results.

How to select the right liquid urethane for your needs

How do you know which one is right for your project? Here are a few things to keep in mind:
The first thing you need to consider is what you’ll be using the liquid urethane for. There are different formulas for different applications, so you need to make sure you get the right one.


Next, think about the properties you need your liquid urethane to have. For example, do you need it to be clear or opaque? UV resistant? Heat resistant? Each type of liquid urethane has different properties, so it’s important to select the one that best meets your needs.


Once you’ve narrowed down your choices, it’s time to start testing. The best way to do this is to buy small quantities of each type of liquid urethane and try them out. This will help you see how they perform in real-world conditions and narrow down your options even further.


Finally, once you’ve selected the liquid urethane that’s right for you, make sure to follow the manufacturer’s instructions carefully. This will help ensure that you get the best results and avoid any problems down the road.

liquid urethan kits

It is important to select the right liquid urethane for your needs to get the best results out of this versatile product. By understanding how density factors into its uses, you can be sure to select the correct liquid urethane for your specific project. Bottom Paint Store carries several different liquid urethane products including liquid urethane foam kits, which are a two-component, Isocyanate/Polyol based, pour-in-place, urethane foam system and Interlux Brushing Liquid 333, a slow drying solvent to ease brushing and facilitate the flow of specified paint coatings.

If you need additional information or ordering assistance on these liquid urethane products call our customer service team Monday through Friday 9:00 a.m.-5:00 p.m.

The Many Uses of Polyurethane Paint and Coatings

Polyurethane paint, also referred to as PU paint or PU coating, is a durable, highly-resistant coating used in industrial and architectural coating systems. It is popular in the marine industry and is used for numerous applications including coatings, rigid and flexible foams, and varnishes. It is also used in steelwork, concrete, wood, and other substrates.

Polyurethane is a reaction polymer, a combination of a polyol resin and an isocyanate hardener or curing agent. Essentially, a polyurethane coating is a liquid plastic which dries to form a paint-like film on an underlying substance or layer. Polyurethane paint provides durability, resistance to chemicals, water, abrasion, and temperature, as well as an attractive glossy finish. The most common application of polyurethane is as a solid foam, accounting for approximately 60% of all polyurethane produced.

Marine Polyurethane Clear Coat

Polyurethane can be used to protect a boats paint and to keep the finish on wooden marine vessels visually appealing and more durable. You can apply polyurethane over any type of paint if it is clean and prepared properly. Polyurethane coatings can be applied to exposed wooden surfaces to create a glossy finish that serves to repel water, resist corrosion, and protect from scratches, stains, and UV damage.

Blue Water Marine Mega Gloss Polyurethane

Mega Gloss by Blue Water Marine is a single component topside polyurethane enamel that can be used on fiberglass, wood, aluminum, and steel. It provides a hard protective coating for super high gloss, color retention, and long durability. Mega Gloss is fast drying which when brushed or rolled, it can also be sprayed, and offers a smooth finish, is resistant to tough chemicals, cleaning solutions and ultraviolet light.

Polyurethane Foam Uses

Sea Hawk Polyurethane Foam

Sea Hawk polyurethane foam is urethane foam that provides excellent flotation, soundproofing or insulation. Mixed 1:1 and easy to install in hard-to-reach places. Poly-U-Foam bonds to wood, metal, and fiberglass. It foams wherever it is poured and is impervious to solvents and gasoline. A 2-quart kit will yield 2.5 cubic feet of space. Available in 2lb density. It is advised not to use below 70°F.

Liquid Urethane Foam Kit

Liquid urethane foam is a closed cell foam that comes in varied sizes, most commonly 2LB, 4LB, 8LB and 16LB densities. This two-part liquid, expanding rigid urethane foam is a closed cell, pourable foam, which will resist the absorption of water. It is the ideal boat foam for structural applications as it is resistant to water penetration and can be used for flotation, insulation, casting, carving, sculpting, sign making and areas where an extremely durable (you can penetrate with a fingernail) while it cannot be dented by hand, making it ideal for support.

Pettit Easypoxy/ EZ-Poxy

Pettit EZ-Poxy is an advanced one-part polyurethane topside and deck enamel. It’s a high gloss finish flows well when applied with a brush. It is a modern one-part polyurethane topside and deck enamel. It It’s use of silicone provides a brilliant shine and easy brush-ability. Its advanced ultraviolet filters enhance the superior gloss retention and durability of polyurethane. The result is a topside finish that is exceptionally easy to apply, producing a lasting gelcoat-like brilliance with a minimum of effort. It is more economical, requires less effort, and is more forgiving than the competition.

Easypoxy’s innovative ultraviolet filters improve gloss retention and enhance the polyurethane’s durability. This results in an end product that is simple to apply and easily creates an enduring shine and superior gloss retention, similar to that of polished gelcoat. Pettit Easypoxy is available in numerous colors.

Interlux Spray Reducing Solvent

Interlux’s Reducing Solvent 2316N is for use in specific two-part polyurethane and epoxy products. It is an amazingly effective, fast evaporating solvent. Safe for aluminum outdrives. Refer to the specific product directions for the amount to be used.

Interlux Pre-Kote

Pre-Kote® is a unique V.O.C. compliant, single package, undercoater or primer for use with Brightside® Polyurethane, Yacht Enamels, or anyone-part topside finish. Microspheres give Pre-Kote® superior build and hide while improving flow and sandability. Use anywhere above the true waterline where a coating is needed to provide a smooth, fair surface for overcoating with a topside enamel.

Interlux Goldspar Satin Varnish

Designed for interior wood surfaces, Interlux Goldspar Satin Varnish is a modified polyurethane low luster varnish. It produces a rich satin sheen finish that resists scratches and stains and applies easily enough to yield truly professional results by either brush or spray. It’s low luster finish makes it ideal for cabin soles, cabinets, counters, tables, as well as home interior finishes.

Urethane Paint

Urethane paint was created in the mid-1960s, utilizing newly developed plastics technology, and designed to be superior to enamel paint in terms of durability by mixing pigment with polyurethanes, which act as the binder to hold the pigment molecules together. Semi-gloss urethane paints have been developed, but all urethane paint will have some degree of glossiness, because the same properties that make it resilient also make it reflect light. It has become a staple in the marine and automotive industry because of its durability.

AwlGrip Topcoat

AwlGrip Topcoat is a polyester based high gloss polyurethane topcoat giving long lasting gloss and color retention. It can only be applied above the waterline of your boat by either a brush, roller, or spray. You should apply Awlgrip Topcoat in two coats of 1.5 to 2.5 mils WFT each and allow 16 hours between each coat. Sanding between coats with 280 to 400 grit paper will provide a smoother finish.

Interlux Perfection Plus

Considered by many as the ultimate clear wood varnish, Interlux Perfection Plus is a high-performance clear polyurethane, offering multiple solutions from one product delivering the ultimate in clear wood coating performance. The chemical cure urethane formulation combines with a best-in-class UV and HALS package to offer outstanding chemical and abrasion resistance, and superb gloss and gloss retention. It typically lasts four times longer than conventional one-part varnishes and can is suitable for all woods, including teak.