Dual-Use Epoxy Moisture Barrier Primer for Flooring Adhesion
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Solution Overview
Problem
Existing methods for applying flooring layers over substrates are time-consuming, labor-intensive, and hazardous due to the use of high-solids epoxy primers and broadcast sand, leading to debonding and delamination issues, and require additional primer steps that increase health risks and operational inefficiencies.
Innovation Solution
A dual-use epoxy-based product that functions as both a moisture vapor barrier and a primer, eliminating the need for a separate primer layer by using a two-component liquid formulation of epoxy resin and curing agent, which reacts to form a cross-linked thermoset layer with adhesion properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If high-solids epoxy primers and broadcast sand are used, then adhesion and bonding are enhanced, but the process becomes time-consuming, labor-intensive, and hazardous
Solution Approach 1:
The patent combines the primer and moisture vapor barrier into a single dual-function product. The epoxy-based composition serves both as an adhesion-promoting primer and as a moisture vapor barrier, eliminating the need for separate primer application and sand broadcasting steps. This merging of functions directly resolves the contradiction by maintaining strong adhesion while dramatically improving productivity.
Solution Approach 2:
The epoxy-based composition is designed to perform multiple functions simultaneously: it provides priming action for adhesion enhancement, acts as a moisture vapor barrier, and eliminates the need for broadcast sand. This multi-functionality allows the single product to replace the traditional multi-step process, resolving the contradiction between adhesion strength and application efficiency.
2Reliability
If a separate primer layer and broadcast sand are applied, then bonding surface is improved, but curing time increases and health risks arise from airborne particulate matter
Solution Approach 1:
The patent extracts and eliminates the broadcast sand component from the traditional primer application process. By using the epoxy-based composition alone without sand broadcasting, the invention removes the source of airborne silica particles that pose health hazards, while still achieving reliable bonding surface quality through the chemical adhesion properties of the epoxy itself.
Solution Approach 2:
The invention converts the potential harm of needing a rough bonding surface (which traditionally required sand broadcasting) into a benefit by using the epoxy's inherent adhesion properties. The epoxy formulation is designed to provide sufficient bonding surface quality without mechanical abrasion, thereby eliminating health hazards while maintaining reliability.
3Reliability
If traditional primer and sand broadcast layer are used, then moisture barrier is provided, but additional steps and materials increase complexity and time
Solution Approach 1:
The patent merges the primer function and moisture vapor barrier function into a single epoxy-based composition and application step. Traditionally, these were separate layers requiring separate application and curing processes. The dual-function product achieves both adhesion enhancement and moisture protection in one coat, significantly reducing system complexity.
Solution Approach 2:
The epoxy-based composition is formulated to provide universal performance as both a primer and moisture barrier. This multi-functionality eliminates the need for multiple specialized layers, reducing the overall complexity of the flooring installation system while maintaining reliable moisture barrier performance.
4Strength
If broadcast sand is applied over wet primer, then adhesion is enhanced, but excess sand removal requires additional time and labor
Solution Approach 1:
The patent extracts and eliminates the broadcast sand step from the process. By relying on the epoxy-based composition's inherent adhesion properties without adding sand, the invention removes the entire sand application and subsequent removal process, thereby eliminating the time loss associated with sand cleanup while maintaining strong adhesion.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The dual-use epoxy-based product provides a faster, safer, and more efficient application process, reducing curing time and health risks while ensuring strong adhesion and moisture barrier performance, eliminating the need for primer steps and preventing delamination.
Implementation Method 1
a two-component liquid formulation of epoxy resin and curing agent, which reacts to form a cross-linked thermoset layer with adhesion properties
Data Source
AI summary
Two-component epoxy-based liquid formulations and their resultant dual use epoxy-based products. The epoxy-based liquid formulations include a liquid epoxy resin composition mixed with a liquid epoxy curing agent composition. The liquid epoxy resin compositions include one or more liquid epoxy resins containing a reactive oxirane structure or epoxide group, while the liquid epoxy curing agent composition comprises one or more epoxy curing agents. The liquid epoxy resin and liquid epoxy curing agent compositions are mixed together to provide a dual functioning epoxy-based formulation that, when applied to a substrate and cured, provides a cured three-dimensional cross-linked thermoset dual acting epoxy-based product having both the moisture vapor barrier and the primer functionalities.