Why Choose Polyurethane Sealant?

There are several practical reasons why professionals and DIYers alike choose polyurethane sealant:

• Excellent flexibility: Ideal for movement joints and areas subject to expansion.

• Strong adhesion: Bonds well to concrete, masonry, metal, wood and many plastics.

• Weather resistance: Performs reliably in outdoor environments.

• Paintable finish: Allows you to match surrounding surfaces once cured.

Because of these benefits, polyurethane sealant is commonly used for expansion joints, perimeter sealing, façade work, flooring joints and general construction sealing.

Polyurethane Sealant Products

Choosing the right product depends on the type of project you’re working on. Here are three reliable polyurethane sealant options available on our website:

• Bond It PU18 Polyurethane Sealant
  A popular all-round polyurethane sealant suitable for movement joints in floors, walls and general construction. It offers excellent elasticity and adhesion, making it a dependable choice for both interior and exterior use.

• Cromar Alphachem Polyurethane 25 
  This versatile polyurethane product delivers strong bonding and sealing performance. Ideal for construction and refurbishment projects, it performs well on a wide range of substrates where durability is essential.

• Hodgson Sealants Foamfix
  Designed for fixing and sealing applications, this polyurethane-based solution is particularly useful where fast application and strong adhesion are required. It’s well suited to trade environments where efficiency matters.

How to Apply Polyurethane Sealant Successfully

To get the best performance from polyurethane sealant, preparation is key:

1. Clean the joint: Remove dust, grease and loose material.

2. Use backing rods if needed: This helps control joint depth and flexibility.

3. Apply evenly: Use a steady bead and avoid overfilling.

4. Tool the sealant: Smooth the joint before the sealant skins over.

5. Allow proper curing: Follow manufacturer guidelines for drying and painting times.

Where Polyurethane Sealant Performs Best

Polyurethane sealant is ideal for areas where strength and flexibility are equally important. From sealing concrete joints and external perimeters to handling movement in floors and panels, it offers a long-lasting solution that stands up to real-world conditions.

By choosing the right polyurethane sealant and applying it correctly, you can achieve a durable, professional finish that continues to perform long after installation.