Swimming Pool Mould Texturing for Concealed Surface Repairs

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Solution Overview

Problem

Preformed swimming pools with smooth surfaces are prone to immediate visibility of minor damages and repairs, lacking aesthetic appeal and ease of repair.

Innovation Solution

A method involving a mould coated with a heated plastic layer in powder form on its convex side, followed by epoxy and fibreglass layers, providing a textured surface that can be easily repaired by applying heated plastic powder.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a smooth surface is applied to the swimming pool interior, then safety and ease of cleaning are improved, but visibility of minor damages and repairs worsens

Engineering Contradiction:

ImprovesafetyVSAvoidvisibility of repairs

Core Design Contradiction:

ReliabilityVSEase of repair

Solution Approach 1:

The patent applies a textured surface specifically to the interior visible surface of the swimming pool, while other surfaces can maintain smooth finishes. This localized texturing hides repairs and minor damages in the critical visible areas without compromising safety or requiring complete renovation of the entire pool structure.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The textured surface creates optical effects that camouflage repairs and minor damages. The irregular surface scattering light in multiple ways makes it difficult to detect repair boundaries and minor scratches, effectively using optical properties to conceal imperfections.

Inventive Principle:

Principle #32Color changes

2Ease of operation

If a smooth surface is applied to the swimming pool interior, then aesthetic appeal is improved, but durability against visible damages worsens

Engineering Contradiction:

Improveaesthetic appealVSAvoiddurability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The textured surface is applied specifically to the interior visible surface where aesthetic appearance matters most, while maintaining smooth surfaces on exterior and non-visible areas. This localized approach preserves aesthetic appeal in critical areas without compromising overall structural durability.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent uses a composite coating system combining textured surface layer with underlying smooth structural layers. The textured top layer provides aesthetic camouflage for repairs, while the composite structure maintains overall durability and structural integrity.

Inventive Principle:

Principle #40Composite materials

3Ease of repair

If a textured surface is applied to the swimming pool interior, then visibility of minor damages is reduced, but manufacturing complexity increases

Engineering Contradiction:

Improvevisibility of repairsVSAvoidmanufacturing complexity

Core Design Contradiction:

Ease of repairVSDevice complexity

Solution Approach 1:

The textured surface pattern is pre-formed on the interior surface of the mould before the swimming pool is manufactured. This preliminary texturing of the mould eliminates the need for complex post-manufacturing texturing processes, simplifying the overall manufacturing workflow while achieving the desired repair-camouflaging effect.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Instead of applying complex mechanical texturing to the finished pool interior, the patent substitutes this with a simpler process of forming the texture on the mould surface, which is then replicated during the standard moulding process. This replaces complex post-processing mechanics with simpler mould preparation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Ease of repair

If a textured surface is applied to the swimming pool interior, then repair camouflage is improved, but surface smoothness for cleaning is reduced

Engineering Contradiction:

Improvevisibility of repairsVSAvoidease of cleaning

Core Design Contradiction:

Ease of repairVSEase of operation

Solution Approach 1:

The textured surface is applied specifically to the interior visible surface where repair camouflage is most needed, while maintaining smooth surfaces on exterior and non-visible areas. This localized texturing minimizes the impact on cleaning ease while maximizing the repair-hiding benefit in critical visible areas.

Inventive Principle:

Principle #3Local quality

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 textured surface hides minor scratches and repairs, offering improved aesthetic appeal and ease of maintenance, with enhanced flexibility and reduced risk of tearing.

Implementation Method 1

a first plastic layer supplied in powder form which is heated and applied on the convex side of the mould

Methodology Applied

Scientific EffectHeating: Heating

Implementation Method 2

a thin layer of the polymers is sprayed on the surface after which the polymers cure by polymerisation

Methodology Applied

Scientific EffectPolymerisation: Photopolymerisation

Data Source

PatentEP4585771A1Mould and method for manufacturing a swimming pool or swimming pond or the like

Publication Date: 2025.07.16 IMPOOLSE BV

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Figure 3~4

AI summary

Method for manufacturing a preformed swimming pool or swimming pond or the like, characterised in that the method at least comprises the steps of providing a mould (1) and providing said mould on the convex side with a first plastic layer (6) which is supplied in powder form and heated and applied on the convex side of the mould (1).