Product Overview
Pro Onyx-Flat W/Chisel Edge 1 1/2"

Achieve a professional, watertight seal with the Red Tree Industries Pro Onyx-Flat W/Chisel Edge 1 1/2" sealant. This premium marine-grade caulk is engineered for superior adhesion and durability, ensuring long-lasting protection against leaks and weathering on your hull and deck. Its unique chisel edge design allows for precise application and a smooth, clean finish, saving you time and effort on your boat maintenance projects.
Key Features
- Marine-grade formulation: Designed to withstand harsh marine environments, including saltwater, UV exposure, and extreme temperatures.
- Superior adhesion: Provides a strong, watertight bond to a variety of marine surfaces, including fiberglass, wood, and metal.
- Long-lasting durability: Resists cracking, shrinking, and peeling for a durable, long-lasting seal.
- Chisel edge design: Allows for precise application and a smooth, professional finish.
- Easy to apply: Smooth consistency and convenient 1 1/2" size make application quick and hassle-free.
- Protects against leaks and weathering: Keeps your boat dry and protected from the elements, preventing costly repairs.
The Captain's Take
After years of battling the elements, I've learned that a reliable sealant is crucial. The Red Tree Industries Pro Onyx-Flat is my go-to choice for hull and deck maintenance. It's easy to work with, creates a rock-solid seal, and stands up to the toughest conditions. Trust me, this is the sealant you want on your vessel.