Introducing WP-53 Hybrid Sealant: The Ultimate Waterproofing Solution

When it comes to waterproofing, every detail matters. The right sealant can be the difference between a project that lasts and one that needs constant maintenance. That’s why we’re excited to introduce WP-53 Hybrid Sealant, a next-generation solution designed for contractors who demand durability, efficiency, and reliability on the job.

What is WP-53 Hybrid Sealant?

WP-53 is a one-component, modified hybrid silicone sealant that provides superior adhesion to a variety of surfaces, including:

• Plywood
• Metal
• Glass
• Aluminum
• FRP (Fiberglass Reinforced Plastic)
• Most common construction substrates

With a fast cure time, high bonding strength, and exceptional weather resistance, WP-53 Hybrid Sealant is a game changer for waterproofing applications.

Why WP-53? Key Benefits for Contractors

WP-53 isn’t just another sealant—it’s built for real-world jobsite challenges. Here’s what sets it apart:

✅ Fast Drying

Time is money. WP-53 cures quickly, allowing you to move forward with the next steps of your project without delays.

🔗 Superior Bonding Strength

This sealant isn’t just sticking to the surface—it’s creating a long-lasting, flexible bond that resists cracking and deterioration.

🎨 Paintable & Sandable

Need a seamless, professional finish? WP-53 can be painted over or sanded down for a clean, polished look.

☔ Weather & Water Resistant

Built to withstand the elements, WP-53 Hybrid Sealant is designed for long-term durability, preventing water intrusion and damage.

🔄 Permanently Flexible

Unlike some sealants that harden and crack over time, WP-53 remains elastic, adapting to structural movement and temperature changes.

Where to Use WP-53

WP-53 is ideal for any application that requires a modified silicone sealant. It’s commonly used for:

• Flashing seams and overlaps – Works seamlessly with bonderized flashing.
• Waterproofing systems – Compatible with the WP-95 Waterproofing Membrane and WP-40 Sheet Membrane.
• ALX & MACoat Systems – A trusted component in these industry-leading systems.

Packaging & Shelf Life

WP-53 is available in 9.8 fl. oz. cartridges (24 cartridges per case) and has a shelf life of one year in unopened packaging. This means you can stock up with confidence, knowing it will be ready when you need it.

Ready to Upgrade Your Waterproofing?

Whether you’re sealing flashing, reinforcing waterproofing systems, or looking for a more reliable and long-lasting sealant, WP-53 Hybrid Sealant delivers the performance you need.

Got questions? Contact your Westcoat rep today to learn more or place an order!