Polyurethane construction joint sealant is a type of sealant made from a polymer composed of diisocyanates and polyalcohols. Known for its strong adhesion, durability, and flexibility, it is a popular choice for sealing and bonding a variety of surfaces and materials, including metal, wood, plastic, and concrete. In addition to polyurethane sealants, silicone joint sealants are another effective option. Silicone joint sealants offer excellent weather resistance, flexibility, and adherence to non-porous surfaces, making them ideal for applications where high performance in extreme conditions is required.
Both polyurethane and silicone sealants are commonly used in construction, automotive, and industrial applications. They are also utilized in the manufacture of products such as footwear, furniture, and insulation. While polyurethane sealants excel in versatility and durability, silicone sealants are preferred for their superior resistance to temperature fluctuations and moisture.
Joint sealing is crucial for:
Preventing Water Ingress: Keeps water out, protecting structures from moisture damage.
Allowing Movement: Accommodates expansion and contraction of materials, preventing cracks.
Enhancing Durability: Extends the lifespan of construction by reducing wear and tear.
Improving Insulation: Helps maintain energy efficiency by sealing gaps.
Maintaining Structural Integrity: Ensures joints remain stable and secure over time.
Here are the main features of polyurethane construction joint sealant:
Excellent Adhesion
Flexibility
Weather Resistance
Durability
Waterproofing
Printability
Low VOC
Ease of Application
Resistance to Chemicals
Self-Leveling
