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What is Sealant?

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What is Sealant?

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In this blog, you will learn everything about car sealant, its types, and its application in the industry.

Everyone wants their shiny new paint job to last, right? Car wax is like a quick fix – it shields your car from scratches and swirls, but the magic wears off in a few months, depending on the wax. Now, there’s a tougher option in town – car sealant. Paint sealants are like armour for your car’s paint.

They’re strong and last a long time, shielding your ride from nasty stuff like acid rain and harsh sunlight. But how do they work? Well, this is a mix called synthetic polymers that form a super-thin, super-strong shield. When your car gets hit with dirt, sap, or bird droppings, these synthetic polymers jump into action to prevent those yucky things from messing with your paint job. 

What is Sealant?

Sealant is a substance which is used to block the passage of fluids through openings in materials. They are commonly used in construction to fill gaps between materials. Modern sealants are made of an elastomeric compound for flexibility. They are usually fillers made of polymers.

There are many different sealant products available, each designed for a different application and sealant purpose, including structural applications or bonding façade elements together.

Types of Sealant

When it comes to automobile sealants, there’s a variety of options to consider, each with its own strengths and weaknesses:

  1. Water-Based Latex: These are popular because they’re easy to apply and stick well to most surfaces. However, they can shrink and pull away from the surface, creating gaps that allow water in.
  2. Acrylic: UV stable and suitable for exterior applications, but they can be tricky to apply and don’t handle significant movement well.
  3. Butyl: Adheres well to various surfaces but can be challenging to apply due to its stringy consistency. It’s not great for demanding automotive applications due to poor abrasion resistance and limited movement accommodation.
  4. Polysulfide: Offers excellent flexibility and durability, even underwater. However, it’s more expensive and may contain higher levels of VOCs.
  5. Silicone: Known for excellent thermal resistance and adhesion but prone to vandalism and dirt collection. It can also stain certain substrates, making primers necessary in some cases.
  6. Polyisobutylene: Similar to natural rubber but more durable, they are often used for insulating glazing units due to low permeability.
  7. Polyurethane: Sticks well to different surfaces with minimal preparation and offers excellent resilience to abrasion and shear forces. It’s a common choice for automotive applications due to its strong adhesion and movement capability.

Each type of sealant has its own set of properties and is suitable for specific automotive applications based on factors like durability, adhesion, and resistance to environmental factors.

When choosing a car sealant, consider the built material of your car and choose a product that suits its needs. Some sealants are cheaper, while others cost more. Depending on your budget, you might want to start with a cheaper option before trying a more expensive brand. Whether it’s for protection from rain or UV light or just for a shiny finish, pick a product that meets your needs. 

Sealant Application System Offered by Patvin

Patvin is well-known in the global automotive industry for its gluing and sealing solutions. Whether you need precision metering equipment, advanced robotics technologies, or specialized solutions, Patvin has it all. The pumping, metering, and dispensing solutions come with state-of-the-art control for precise applications. Additionally, visual and laser quality control systems are available to make sure the bead quality meets your specifications. Here are some of the state-of-the-art sealant application systems by Patvin: 

  1. Mastic Sealant Application
  2. Structural Adhesive Application
  3. Crash Sealer Application
  4. Anti-Flutter Sealant Application
  5. Hem Flange Bonding
  6. Seam Sealer Application
  7. Cosmetic Sealer Application
  8. UBS / UBC Sealer Application
  9. Anti-Chip / Rocker Panel Application
  10. Roof Ditch Sealer Application
  11. Liquid Applied Sound Deadener
  12. Glass Gluing System
  13. Urethane Supply System
  14. Liquid Gasketing Application

Frequently Asked Questions

  • What types of sealants are commonly used in automotive applications?

The main sealants and adhesives used in car shops are formulated from acrylic esters, epoxies, polybutadienes, polyurethanes, and PVC/epoxy blends.

  • What is a car body sealant, and what is its purpose?

A car body sealant is a single-component, polyurethane seam sealer. It rapidly cures, creating a permanent and flexible seal tailored for sealing both interior and exterior automotive and RV body joints and seams.

  • What characterizes an all-purpose sealant?

All-Purpose Silicone 1 sealant is a 100% silicone and fully weatherproof sealant, perfect for areas exposed to various weather conditions. This type of sealant is ideal for windows, doors, siding, trim, moulding, baseboards, vents, basements, attics, and around wires and pipes.

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Author :
Mangesh Pawar

Mangesh Pawar

Mangesh is an engineer with over three decades of experience. He currently serves as the president of Patvin Engineering. His expertise lies in paint, sealant automation, cobots, and similar technologies. He has extensive experience collaborating with senior-level directors in a business-partnering role and has been recognized with various industry awards throughout his career.

Mangesh Pawar

Mangesh Pawar

Mangesh is an engineer with over three decades of experience. He currently serves as the company president. His expertise lies in paint, sealant automation, cobots, and similar technologies. He has extensive experience collaborating with senior-level directors in a business-partnering role and has been recognized with various industry awards throughout his career.

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