Fiberglass Shells

When it comes to choosing a fiberglass pool, the quality of the pool shell is paramount. At Midwest Container Pools, we pride ourselves on offering some of the most robustly constructed pool shells in the industry, ensuring our customers receive a product that stands the test of time. Understanding how a fiberglass pool shell is constructed, including the materials and methods used, can help you make an informed decision. Let’s explore the critical elements of fiberglass pool shell construction and why our pools are among the best available.

1. The Importance of Materials: Vinyl Ester Resin vs. Standard Resin

One of the primary factors that affect the durability and longevity of a fiberglass pool shell is the type of resin used in its construction.

Vinyl Ester Resin

High-quality fiberglass pool shells utilize vinyl ester resin, a superior material known for its exceptional strength and resistance to corrosion and water infiltration. Vinyl ester resin provides several benefits:

• Enhanced Durability: Vinyl ester resin has superior tensile and flexural strength, allowing the pool shell to withstand the pressure of water and soil without compromising structural integrity.
• Chemical Resistance: This type of resin offers enhanced resistance to harsh chemicals commonly found in pool water, such as chlorine, ensuring a longer-lasting finish.
• Moisture Barrier: Vinyl ester resin acts as a moisture barrier, reducing the risk of osmosis (blistering) that can occur with inferior materials.

Standard Resin

On the other hand, some manufacturers opt for standard polyester resin, which is cheaper but comes with significant drawbacks. Pools made with standard resin are more susceptible to issues like cracking, osmosis, and fading, leading to increased maintenance and potentially costly repairs over time.

At Midwest Container Pools, we exclusively use vinyl ester resin in our pool shells, guaranteeing a superior product that stands up to the rigors of time and usage.

2. Gel Coat: The First Line of Defense

Another critical component in the construction of a fiberglass pool shell is the gel coat. A proper gel coat serves as the outer layer of the pool, providing a smooth, aesthetically pleasing finish and protecting the underlying fiberglass from UV rays and chemical exposure.

Quality Gel Coat

• UV Resistance: A high-quality gel coat contains additives that protect against UV damage, preventing fading and discoloration.
• Smooth Finish: A well-applied gel coat creates a sleek surface that not only looks attractive but also makes cleaning and maintenance easier.
• 
  

Inferior Gel Coat

In contrast, cheaper pools may use lower-quality gel coats or apply them poorly. This can lead to issues such as peeling, fading, and a rough surface that collects dirt and debris, making maintenance more challenging.

At Midwest Container Pools, we ensure our gel coats are of the highest quality, providing both beauty and protection for years to come.

3. Thickness Matters: Understanding Pool Shell Variations

The thickness of a fiberglass pool shell is another critical factor that influences its overall quality and durability.

Quality Pool Shell Builders

Reputable manufacturers, like Midwest Container Pools, typically construct pool shells with a thickness ranging from 5/8 inch to 1 inch, depending on the design and structural requirements. This added thickness contributes to:

• Increased Strength: A thicker shell can better withstand the pressures of water and surrounding soil, reducing the likelihood of cracking or warping.
• Enhanced Longevity: Thicker shells are less prone to damage and wear, leading to a longer lifespan for the pool.
• 
  

Cheaper Alternatives

In contrast, some manufacturers cut costs by producing thinner shells, often as little as 1/4 inch to 3/8 inch. These thinner shells are more susceptible to structural issues, leading to a host of problems down the road, including warping, cracking, and increased maintenance needs.

At Midwest Container Pools, we take pride in our commitment to quality, constructing some of the thickest and most robust fiberglass pool shells available. Our emphasis on durability ensures that your investment will pay off in the long run.

4. Why Choose Midwest Container Pools?

At Midwest Container Pools, we understand that purchasing a pool is a significant investment. That’s why we go above and beyond to provide a product that exemplifies quality and durability. Our fiberglass pool shells are constructed using:

• Vinyl Ester Resin: For unmatched strength and chemical resistance.
• High-Quality Gel Coat: For a beautiful finish that withstands the test of time.
• Thick Shell Construction: To ensure durability and longevity.
• 
  

When you choose a Midwest Container Pool, you’re not just getting a beautiful addition to your backyard; you’re investing in a quality product that will provide enjoyment for years to come.



Choosing the right fiberglass pool shell is crucial for ensuring a long-lasting and enjoyable pool experience. By understanding the differences in materials and construction methods, you can make an informed decision that will pay off in the long run. At Midwest Container Pools, we are dedicated to building top-quality pool shells that offer both beauty and durability, ensuring your investment is protected. Contact us today to learn more about our high-end container pools and how we can help you create the backyard oasis of your dreams!