YKF 34oz Clear Waterproof Sealant – Invisible, Water-Based Leak Protection for Roofs & Surfaces

Overview

Meet YKF 34oz Clear Waterproof Sealant, a water-based solution designed to guard roofs, walls, bathrooms, kitchens, gardens, and other indoor or outdoor spaces without altering their look. It creates a dense, flexible membrane that helps block air, water, and moisture while remaining virtually invisible on many surfaces.

Why this sealant stands out

• Powerful waterproof and leak-proofs performance: forms a dense, water-based membrane that resists moisture and air intrusion on a variety of surfaces.
• Invisible finish: dries completely clear to preserve the natural appearance of roofs, walls, and indoor areas.
• Weather-ready reliability: UV resistant and flexible, handling temperature changes and preventing cracks over time for year‑round protection.
• Easy brush-on application: works on concrete, wood, metal, or tile, offering a versatile sealing solution for many projects.
• Efficient coverage and fast results: up to 15 sq ft with 2-3 coats; forms a strong, flexible seal in about 24 hours.

Where you can use it

• Roofs, gutters, and exterior walls to guard against leaks while keeping aesthetics intact.
• Bathrooms, kitchens, and other damp spaces where moisture intrusion is a concern.
• Garden sheds, outdoor furniture, and garden walls for durable weatherproofing.
• Indoor and outdoor surfaces including concrete, wood, metal, and tile.

How to apply

Prepare the surface by cleaning and drying it. Apply with a brush in thin, even coats. For best results, maintain surface temperatures above 5°C (41°F). If the product freezes during shipping, thaw at room temperature and mix well before use.

Coverage, cure, and care

• 34 oz container covers up to 15 sq ft with 2-3 coats.
• Forms a flexible, durable seal that cures in about 24 hours under suitable conditions.
• Cleanup is easier when the sealant is still wet; use water and a cloth before it dries.

Practical notes for your project

This water-based formula is designed for straightforward DIY sealing as well as professional use. Real-world results will depend on surface condition, ventilation, and climate. Pro tip and weather guidance help you plan your work for the best possible outcome.

Pro tip: For best results, apply above 5°C/41°F. If frozen during shipping, thaw fully at room temperature and mix well. Check local weather before winter orders for optimal curing conditions.