Moisture-Cure Resin Paste for Sealing Wet Surface Apertures
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Solution Overview
Problem
Existing waterproofing methods require a dry surface for effective adhesion and repair, limiting their application to wet or damaged surfaces, particularly those with flowing water, and do not allow for subsequent painting.
Innovation Solution
A moisture-cure, hybrid synthetic resin paste is applied to wet surfaces to create a waterproof barrier, capable of forming a strong bond with various materials, including those under water, and can be used for repair, sealing, and waterproofing, with the option to paint afterwards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional acrylic- or solvent-based waterproofing products are applied, then adhesion to dry surfaces is achieved, but application to wet surfaces including flowing water is not possible
Solution Approach 1:
The patent changes the chemical parameter of the adhesive from conventional acrylic or solvent-based formulations to a moisture-curing polyurethane formulation. This chemical parameter change enables the adhesive to cure in the presence of moisture, allowing application to wet surfaces while maintaining strong adhesion and structural integrity.
Solution Approach 2:
The patent employs a hybrid synthetic resin paste combining moisture-curing polyurethane with reinforcing materials such as fibrous fillers and pigments. This composite structure provides both the chemical reactivity needed for wet-surface curing and the mechanical strength required for durable waterproofing, resolving the contradiction between adaptability and reliability.
2Productivity
If surface drying is required before application, then adhesion is improved, but repair time and productivity are reduced
Solution Approach 1:
The moisture-curing polyurethane adhesive utilizes the moisture already present in the environment or on the surface as the curing agent. This self-service mechanism eliminates the need for separate drying or surface preparation steps, enabling immediate application to wet surfaces while achieving full bond strength without compromising reliability.
3Adaptability or versatility
If conventional waterproofing products are used on wet surfaces, then water resistance may be achieved, but subsequent painting capability is lost
Solution Approach 1:
The patent changes the chemical composition parameter to a moisture-curing polyurethane system that produces a non-glossy, porous cured structure. This parameter change enables the cured adhesive to accept paint adhesion while simultaneously providing effective waterproofing, thus achieving both paintability and water resistance without compromise.
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
Enables effective repair and waterproofing of surfaces in the presence of water, including flowing water, without the need for surface drying, providing a durable, breathable barrier resistant to weathering and allowing for a wider range of applications with enhanced adhesive strength.
Implementation Method 1
A moisture-cure, hybrid synthetic resin paste (sometimes referred to herein as 'paste') is applied to a wet surface to create a waterproof barrier
Data Source
AI summary
A moisture-cure, hybrid synthetic resin paste may be applied over an aperture formed in a wet surface to cover the aperture and form a waterproof barrier. In some examples, water may be flowing or even gushing through the aperture at the time that the paste is applied. The paste may be applied using a suitable hand tool such as a spatula.