VECT-R vs. 2-Part Epoxy Moisture Vapor Remediation

Understanding Moisture Vapor Control in Concrete Flooring

Excessive moisture vapor transmission (MVT) is cited as one of the most common causes of flooring failures, leading to adhesive breakdown, delamination, and mold growth. To address this issue, moisture vapor remediation products are specified under DIVISION 9 – MOISTURE VAPOR CONTROL in an effort to ensure the long-term success of flooring installations. Traditionally, 2-part epoxy moisture vapor remediation systems (Remedial Floor Coatings), such as Koster VAP I 2000 and Ardex MC Rapid, have been used to mitigate high moisture vapor levels before installing floor coverings. However, advancements in moisture control technology have introduced VECT-R, a next-generation, spray-applied penetrating sealer that offers significant advantages over traditional epoxy-based systems.

2-part epoxy moisture remediation systems are film-forming, resin-based coatings that trap moisture under a surface barrier rather than addressing the root cause of excessive moisture movement—concrete permeability. By relying on a surface film, these systems create an additional point of potential failure between the floor and compromised concrete. Over time, trapped moisture can lead to delamination, osmotic blistering, and adhesion failure, undermining the integrity of the flooring system.

In contrast, VECT-R permanently reduces concrete permeability by penetrating and molecularly bonding with the capillary walls within the concrete to create a permanent integral moisture barrier. Rather than forming a surface film that can wear or fail, VECT-R penetrates deep into the concrete, blocking moisture at its source and ensuring long-term flooring adhesion without the risk of failure.

This article digs deeper into the differences between VECT-R and 2-part epoxy moisture vapor remediation products, highlighting why contractors, architects, specification writers, consultants, and engineers should consider VECT-R as a superior alternative.

Key Differences Between VECT-R & 2-Part Epoxy Systems

1. Application Process & Labor Requirements

VECT-R

• Spray-applied application that eliminates the need for mixing while providing deep penetration and moisture control.
• No priming or mechanical surface profiling required, reducing preparation time.
• Fast penetration and reaction time, allowing for same-day flooring installation.

2-Part Epoxy Systems

• Requires precise mixing of two components to activate the chemical reaction.
• Requires mechanical surface preparation (diamond grinding or shot blasting) to achieve proper adhesion.
• Typically applied in two coats, with extended cure times between applications.
• Adds significant labor costs due to surface prep and multi-step installation.

2. Time Savings & Project Scheduling

VECT-R

• Dries in 10-30 minutes and allows for flooring installation just 4 hours later.
• Eliminates downtime associated with multi-step applications.
• Ideal for fast-track construction projects and renovations with tight deadlines.

2-Part Epoxy Systems

• Requires 24-48 hours of cure time before flooring can be installed.
• Any deviations in mixing ratios or application conditions can lead to resin curing failures, requiring costly rework.
• Can delay project schedules, adding time and labor expenses.

3. Performance & Longevity

VECT-R

• Penetrates and molecularly bonds to the capillary walls within the concrete, forming a permanent moisture barrier.
• No risk of adhesion failure since it does not form a surface film that can delaminate.
• Controls all elements of potential failure including moisture, moisture vapor, alkali concentrates as well as hydrostatic pressure and osmotic blistering, ensuring long-term protection.

2-Part Epoxy Systems

• Creates a surface film, which can fail due to osmotic blistering, mechanical damage, or poor adhesion.
• Can delaminate over time, especially under hydrostatic pressure or heavy traffic loads.
• Requires ongoing monitoring and potential re-application if failure occurs.
• Only warrants failure due to vapor and alkalinity specific to the resin, not the floor assembly.

4. Environmental & Safety Considerations

VECT-R

• Zero VOC, non-toxic, and environmentally friendly.
• No hazardous waste disposal requirements.
• Meets sustainability standards for green building certifications, such as LEED, WELL, and Living Building Challenge.

2-Part Epoxy Systems

• May contains solvents and high VOCs if not 100% solids, requiring strict ventilation and PPE during application.
• Generates hazardous waste, requiring special disposal procedures.
• Contributes to higher environmental impact and regulatory concerns.

5. Cost Efficiency

VECT-R

• Lower total installed cost due to simplified application, reduced labor, and minimal prep work.
• No additional equipment, primers, or adhesives required.
• Reduces the risk of future flooring failures, avoiding costly repairs and downtime.

2-Part Epoxy Systems

• Higher material and labor costs due to multi-step application and required surface preparation.
• Requires specialized labor, adding to installation expenses.
• Potential for rework costs if adhesion failures or curing issues arise.

6. Warranty Comparison

VECT-R Warranty

• 20-Year Coverage: Guarantees protection against moisture, including hydrostatic and osmotic pressure, moisture vapor, and alkalinity.
• Non-Prorated & Transferable: Warranty remains in full effect even if the property is sold.
• Covers Bond Integrity: Ensures adhesives and coatings bond properly when installed per manufacturer’s instructions.
• Full Replacement Remedy: If failure occurs, SINAK provides materials, labor, and floor replacement.
• Remains Valid Despite Surface Damage: Still applies if mechanical preparation is performed before flooring installation.

2-Part Epoxy Warranty

• Shorter Duration: Typically 15-20 years, though it varies by manufacturer, and may be prorated over time.
• Surface Film Limitations: If the epoxy delaminates due to wear, hydrostatic pressure, or osmotic blistering, it’s often excluded from coverage.
• Not Transferable: Warranty is void if property ownership changes.
• Strict Surface Prep Requirements: Deviations (e.g., improper grinding) may void the warranty.
• Limited Remedies: Often only covers material replacement, not labor or floor replacement.

Why Contractors and Design Professionals Choose VECT-R

For contractors, VECT-R provides a faster, easier, and more reliable alternative to traditional moisture vapor remediation methods. With fewer application steps, no mechanical preparation, and rapid drying time, it streamlines installation while reducing labor and material costs.

For design professionals, VECT-R offers a high-performance, environmentally friendly, and warranty-backed solution that eliminates concerns about flooring failures due to moisture-related issues. By specifying VECT-R instead of 2-part epoxy systems, architects and specifiers ensure long-term project success while supporting sustainable building practices.

The Bottom Line: VECT-R vs. 2-Part Epoxy

Make the Switch to VECT-R Today

Whether you’re a contractor looking to streamline installation or a design professional seeking a more reliable moisture control solution, VECT-R is the next-generation alternative to traditional 2-part epoxy systems.

Ready to eliminate costly flooring failures? Specify VECT-R in your next project and experience the difference.

CONTACT US TODAY TO LEARN MORE
or
REQUEST A QUOTE