Aquafin 1K Cementitious Waterproofing 50 Pound Bag

AQUAFIN-1K – Innovative Cement-Based Waterproof Coating for Lasting Durability

AQUAFIN-1K is a cement-based, polymer-modified waterproof coating designed for superior leak prevention and long-term durability. When mixed with water, it forms a dense, rigid surface barrier that effectively seals and protects against water intrusion while allowing concrete to breathe. Its advanced formulation combines Portland cement, well-graded quartz sand, and polymer-enhanced chemical ingredients to create a high-performance waterproofing solution for basements, foundations, and other critical structures.

This innovative one-component system offers easy application—just mix with water—and provides reliable protection against cracks, leaks, and hydrostatic pressure, even on moist substrates. Certified for use with potable water, AQUAFIN-1K is safe, non-toxic, non-flammable, and odor-free, making it suitable for both residential and industrial environments.

Features & Benefits

• One-component – simply mix with water
• Can be used as a stand-alone coating or in combination with AQUAFIN-2K/M
• Polymer modified for enhanced adhesion and flexibility
• Potable water certified per NSF/ANSI Standard 61
• Withstands strong hydrostatic pressure and prevents leaks and cracks
• Not a vapor barrier – allows concrete to breathe naturally
• Excellent freeze/thaw resistance for long-term durability
• Can be applied to moist concrete or substrates
• Non-flammable, no odor, non-toxic – safe for enclosed areas like basements

Applications

• Concrete, brick, and block foundations and retaining walls
• Basement waterproofing and leak prevention
• Potable water tanks and open wastewater structures
• Suitable for interior/exterior, above or below grade, positive or negative water pressure conditions
• Ideal base coat for AQUAFIN-2K/M

Colors

• Gray
• White

Specifications

• 07 16 13 POLYMER MODIFIED CEMENT WATERPROOFING

Certifications

• NSF/ANSI Standard 61 – Potable Water Approved

AQUAFIN-1K delivers innovation and reliability in waterproofing technology—engineered for crack prevention, leak resistance, and lasting protection in even the most demanding basement and foundation environments.