PU Sealant India – Industrial Polyurethane Sealant Manufacturer & Supplier

PU Sealant is a high-performance polyurethane sealant widely used in construction, automotive, infrastructure, and industrial applications across India. Designed for strong adhesion and long-lasting flexibility, our PU sealant provides excellent waterproofing, weather resistance, and vibration durability for demanding environments.

As a trusted PU sealant manufacturer and supplier in India, we provide industrial-grade polyurethane sealants suitable for large-scale commercial and OEM applications.

What is PU Sealant?

PU Sealant (Polyurethane Sealant) is a single-component moisture-curing sealant that forms a strong, flexible, and durable bond between different materials such as concrete, metal, aluminum, wood, and glass.

Polyurethane sealant is widely used in industrial, construction, and automotive sectors because of its excellent adhesion strength and long-term performance in harsh weather conditions.

Key Benefits of PU Sealant

Our industrial PU sealant offers superior performance compared to conventional sealants.

High Adhesion Strength

Provides strong bonding to materials such as:

• Concrete
• Metal
• Aluminum
• Wood
• Glass
• PVC

Waterproof Sealing

Creates durable waterproof joints that prevent moisture penetration in buildings and infrastructure.

Weather & UV Resistance

Suitable for outdoor applications exposed to sunlight, rain, and temperature variations.

High Flexibility

Maintains flexibility even after curing, making it ideal for expansion joints.

Vibration Resistance

Suitable for automotive and transport applications where movement occurs.

Long Service Life

Ensures reliable sealing and bonding for extended operational periods.

Industrial Applications of PU Sealant

Polyurethane Sealant is widely used across multiple industries in India.

PU Sealant for Construction Industry

Used in:

• Expansion joints
• Concrete joints
• Window frame sealing
• Roofing applications
• Precast panel joints
• Floor joints

Suitable for:

• Residential buildings
• Commercial projects
• Infrastructure works
• Industrial plants

PU Sealant for Bus Body Manufacturing

Commonly used by:

• Bus body builders
• Commercial vehicle manufacturers

Applications:

• Metal panel bonding
• Roof sealing
• Side panel joints
• Structural bonding

Provides:

• Strong adhesion
• Vibration resistance
• Long-term durability

Polyurethane Sealant for Automotive Industry

Ideal for:

• Vehicle body joints
• Panel bonding
• Windshield sealing
• Metal joint sealing

Ensures:

• Durable sealing
• Noise reduction
• Structural support ( Know more about metal to metal uses in Automotive Industry)

PU Sealant for Infrastructure Projects

Widely used in:

• Bridges
• Highways
• Metro rail projects
• Airports
• Industrial buildings

Provides high-performance sealing for demanding infrastructure environments.

PU Sealant for Metal & Aluminum Bonding

Used for:

• Aluminum panels
• Metal sheets
• Industrial fabrication
• HVAC installations

Ensures long-term bonding reliability.

Technical Specifications of PU Sealant

Typical properties of industrial polyurethane sealant:

• Base Material: Polyurethane
• Form: Single-component
• Curing Method: Moisture curing
• Skin Formation Time: 30–60 minutes
• Cure Rate: 2–3 mm per 24 hours
• Hardness: Shore A 35–45
• Elongation: High flexibility
• Temperature Resistance: −40°C to +90°C
• Shelf Life: 9–12 months

(Custom specifications can be adjusted based on your product.) Request for Technical Data Sheet

Polyurethane Sealant vs Other Sealants

PU Sealant vs Silicone Sealant

PU Sealant vs MS Polymer

How to Apply metal polyurethane sealant

Proper application ensures maximum performance.

Surface Preparation

• Clean surface thoroughly
• Remove dust and grease
• Ensure dry surface

Application Method

• Use sealant gun
• Apply evenly into joint
• Smooth using spatula

Curing Process

• Allow curing under normal humidity
• Avoid movement during curing

Industries We Serve

Our Polyurethane sealant is trusted by industries across India.

• Construction Companies
• Infrastructure Contractors
• Automotive Manufacturers
• Bus Body Builders
• Metal Fabrication Units
• OEM Manufacturers
• Industrial Plants
• Real Estate Developers

Why Choose Our Polyurethane Sealant in India

We provide industrial-grade polyurethane sealant solutions designed for large-scale usage.

Reliable Manufacturing

• Consistent quality production
• Industrial-grade formulation
• Batch-tested materials

Bulk Supply Capability

Suitable for:

• Large construction projects
• OEM manufacturing
• Industrial applications

Quality Assurance

Each batch undergoes strict quality checks to ensure consistent performance.

Technical Support

We provide technical guidance for application and product selection.

Packaging Options

Available in:

• 300 ml cartridges
• 600 ml sausages
• Bulk packaging (on request)

(Custom packaging can be added.)

Storage & Shelf Life

• Store in cool, dry place
• Avoid direct sunlight
• Keep sealed until use
• Recommended shelf life: 9–12 months

Frequently Asked Questions (FAQ)

What is PU sealant used for?

Polyurethane sealant is used for sealing joints in construction, automotive, infrastructure, and industrial applications where strong bonding and flexibility are required.

Is PU sealant waterproof?

Yes, Polyurethane sealant provides excellent waterproof sealing and protects joints from moisture penetration.

Which industries use metal bonding Polyurethane sealant?

Polyurethane sealant is widely used in:

• Construction
• Automotive
• Infrastructure
• Bus body manufacturing
• Industrial fabrication

Is Polyurethane sealant paintable?

Yes, polyurethane sealant can be painted after curing.

How long does Metal bonding Polyurethane adhesive last?

PU sealant provides long-term durability and can last for many years depending on application conditions.

Request Bulk Supply or Technical Assistance

For industrial supply, bulk orders, or OEM requirements, contact our technical team for product selection and pricing.

We supply high-quality automotive polyurethane adhesive sealant across India for construction, automotive, and industrial applications.