What is Polymeric Sand?

Polymeric sand, often referred to as polymeric jointing sand, is a specialized product designed for use in concrete paving. It is a blend of fine sand and a polymer that, when mixed with water, forms a strong, flexible, and durable jointing material. This unique composition makes it an ideal choice for a variety of applications, from residential driveways to commercial parking lots.

Composition of Polymeric Sand

The core component of polymeric sand is, of course, sand. However, it is not just any sand; it is a fine, clean, and dry sand that is free from any impurities. The sand particles are typically around 0.5mm in size, which allows them to fill the gaps between pavers effectively. The polymer, on the other hand, is a synthetic material that is added to the sand to create the polymeric sand.The polymer used in polymeric sand is usually a type of polyurethane or polyacrylate. These polymers are chosen for their ability to bind the sand particles together and create a cohesive, flexible joint. The polymer also helps to prevent the joint from shrinking or cracking over time, which is a common issue with traditional sand joints.

How Polymeric Sand Works

When polymeric sand is mixed with water, it undergoes a chemical reaction that causes the polymer to expand and bind the sand particles together. This creates a strong, flexible joint that can withstand the movement and pressure of the pavers. The joint is also waterproof, which prevents water from seeping into the base material and causing damage.The process of using polymeric sand is relatively simple. First, the pavers are laid and the joints are swept clean. Then, the polymeric sand is mixed with water according to the manufacturer’s instructions. The mixture is then swept into the joints using a stiff broom. Finally, the excess sand is swept away, leaving a clean, even joint.

Benefits of Using Polymeric Sand

There are several benefits to using polymeric sand over traditional sand joints:-

Waterproofing: Polymeric sand is waterproof, which means it prevents water from seeping into the base material and causing damage.

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Durability: The joint created by polymeric sand is strong and flexible, which means it can withstand the movement and pressure of the pavers over time.

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Easy to Maintain: Polymeric sand joints are easy to clean and maintain, as they do not require the frequent re-sweeping that traditional sand joints do.

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Longevity: Polymeric sand joints are more durable and long-lasting than traditional sand joints, which means they require less maintenance over time.

Applications of Polymeric Sand

Polymeric sand is suitable for a wide range of applications, including:-

Residential Driveways: Polymeric sand is an excellent choice for residential driveways, as it provides a strong, durable, and waterproof joint.

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Commercial Parking Lots: Polymeric sand is also suitable for commercial parking lots, as it can withstand the heavy traffic and pressure of vehicles.

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Pool Decks: Polymeric sand is often used in pool decks, as it provides a non-slip surface and prevents water from seeping into the base material.

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Walkways and Patios: Polymeric sand is also suitable for walkways and patios, as it creates a strong and durable joint that is easy to maintain.

Table: Comparison of Polymeric Sand vs. Traditional Sand

| Feature | Polymeric Sand | Traditional Sand || — | — | — || Waterproofing | Yes | No || Durability | High | Low || Maintenance | Easy | Difficult || Longevity | Long | Short || Cost | Higher | Lower |In conclusion, polymeric sand is a versatile and durable jointing material that offers several advantages over traditional sand. Its waterproofing properties, durability, and ease of maintenance make it an ideal choice for a wide range of applications. Whether you are installing a new driveway, parking lot, or patio, polymeric sand is a great option to consider.