Bathtub Joint Sealing Strip With Capillary Stop Against Wall Moisture
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Solution Overview
Problem
Existing methods for connecting sanitary built-in objects to walls, such as tubs and basins, fail to adequately prevent moisture penetration, leading to potential damage over time due to leaks in silicone joints and capillary action.
Innovation Solution
A joint tape with a waterproof sealing strip, capillary stop means, and optional pull-off strip is used to create a water-impermeable connection between the sanitary object and the wall, preventing liquid from rising or migrating through the seal by using a capillary stop band or interrupting the tile adhesive layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If silicone joints are used to seal the joint between the built-in object and the wall, then the joint is sealed, but after a long period of time the joints can tear open as a result of working on the structure and in particular when the built-in item is lowered
Solution Approach 1:
The sealing system incorporates flexible, elastic sealing elements positioned at locations subject to movement and stress (such as between the tub and wall, and behind tiles) to absorb and accommodate structural movements, thermal expansion, and settling forces before they can damage rigid seals. This cushioning effect prevents stress concentration that would lead to joint failure over time.
Solution Approach 2:
The sealing material properties are selected to change with environmental conditions - using materials with high elasticity and flexibility that can deform under stress, then return to their original shape. These materials maintain their sealing effectiveness across a range of temperatures, humidity levels, and mechanical stresses, adapting their physical parameters to match changing service conditions rather than remaining rigid.
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 solution effectively prevents moisture from penetrating the wall, even if the silicone joint leaks, by ensuring the sealing strip is connected to the wall and using capillary stop means to block liquid ascent, thus protecting the wall from damage.
Implementation Method 1
which serves to prevent liquid from rising in material in front of the installed weatherstrip
Data Source
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AI summary
The interface between a bathtub and a tiled bathroom wall is closed by a water impermeable sealing strip (42) whose lower face is bonded to the bathtub rim and upper face is bonded to the wall. The sealing strip further has a capillary stop strip.