Questions tagged [waterproofing]

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IPx8 rating test

Do I need to perform all the lower IPx(1-7) rating tests to achieve an IPx8 rating or covers the IPx8 rating test all the other ones.
ZxCvBnM's user avatar
  • 113
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1 answer
23 views

What is an appropriate adhesive to reinstate the 10m waterproof seal on the case of a GoPro Hero5 after a repair?

I am going to diagnose/repair a speaker issue with a GoPro Hero5 action camera. This camera is waterproof to 10m depth without any separate case, per the manufacturer. The repair requires removing the ...
scooter's user avatar
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1 answer
122 views

How bad is it if water is leaking through concrete in the lower parking levels of my apartment building?

I live in a 14 story apartment complex built in the 70s that has three underground parking levels. Today it looks like there's water leaking through cracks in the concrete on the second and third ...
JJrodny's user avatar
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1 vote
1 answer
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Pumping water from under concrete slab basement

I have this situation, and wanted someone's opinion. Info: Concrete foundation basement, slab floor Weeping tiles and a sump pump is present / operational The house is near a pond. Grading is alright,...
CrazyFox01's user avatar
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0 answers
33 views

Temporary upgrade of IP67 servo motor to IP69K

I have this IP67 rated servo motor and I would like to test it on a device, which undergoes IP69K washdown (once daily high-pressure, hot jet with cleaning agents used in food processing plants). The ...
Paul Jurczak's user avatar
1 vote
1 answer
28 views

Suitable pipe suggestion required

I've got a machine that sucks water. The inlet is half inch. I had been using braided pvc till now but it has started to breathe air which is causing problems with the machine. It also bends under ...
DribbleNibble's user avatar
0 votes
2 answers
67 views

Materials that will block water but allow sound to travel through without being muffled

I am in a fraternity at my college. We would like to host a paint party but are worried about our speakers getting damaged. The paint used is water based, so very thin. The paint is made using ...
Andrew's user avatar
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1 answer
50 views

How to lay stretch film around a frame so that it can hold water without leaks?

In order to store rain water and use it for the garden I need to build a 1000L water tank with custom dimensions (0,70m x 0,84m x 1,50m) made out of stretch film. So far I am experimenting with a ...
Cara Duf's user avatar
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1 answer
95 views

Watches: screw-down crown, gaskets, and what else?

I recently learned that some watches have a "screw-down crown", which to my understanding is made with a threaded crown stem that tightens into a threaded watch case. This seems ...
H2ONaCl's user avatar
  • 109
7 votes
4 answers
3k views

How did this building's windows get like this?

I don't recall seeing the walls like this before, so I don't think it's just accumulated soilage. If it's wetness, what design flaw causes the windows to do that? Today was very hot and muggy so it's ...
Luke Sawczak's user avatar
0 votes
2 answers
86 views

Waterlogged multistorey apartment

I fraction invested in a real estate project several years back. Mid way through the construction, after about 12 floors, the building contractor filed for bankruptcy. An asset reconstruction company ...
cryptex's user avatar
1 vote
3 answers
370 views

Achieve mechanically water tight snap-in-place joint

I'm not sure how to ask it but i'll try I want to 3d-print 2 half spheres with a screw cap that then can be clipped once (can't un-clip later) And can be filled with water (lets say its food safe, i'...
Simon's user avatar
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0 answers
46 views

Brainstorming ways to water seal a submarine with a protruding instrument?

I am currently working on a submarine that has a flat face at one end made of 1/2" acrylic. Currently, there is a 12mm glass sensor that protrudes through a hole in the acrylic face and I am ...
Eli's user avatar
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0 votes
3 answers
790 views

Are mechanical pocket watches inherently water-proof and last "forever"?

Recently, I bought a cheap (~$53) but elegant mechanical "retro pocket watch", newly made. That is, not an antique made in the 18th century or anything. So far, it's worked flawlessly and ...
Legennd D.'s user avatar
2 votes
2 answers
80 views

Do PVC concrete joint water stops degrade over time? Or were they never installed correctly?

A UK subterranean reinforced concrete structure built in the late 1960s has experienced sustained water ingress over time as shown by the deposition of minerals of the walls: According to the ...
egg's user avatar
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3 votes
2 answers
1k views

How do I connect a 3mm water tube to a plastic box?

I need to connect a 3mm inside-diameter tube from a solenoid valve to a plastic box. The box wall thickness is 4.5mm. The purpose is to empty water in the box when needed. How should I connect it so ...
keble's user avatar
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0 votes
1 answer
417 views

How to have a watertight or airtight pipe seal that is rotating at a radius, with a stationary junction tube?

How would I have a watertight or airtight pipe that is rotating at a radius, if the main reservoir pipe is not? Since I'm pretty sure I didn't do a good job of describing what I mean, the image above ...
itisyeetimetoday's user avatar
1 vote
1 answer
35 views

What tests are made in an Ingress Protection to verify that no water entered the enclosure?

I am asking this question on what tests are made to to verify that no water has penetrated the waterproof enclosure during an Ingress Protection test. I have researched tests online and most often ...
suyol854's user avatar
  • 111
0 votes
4 answers
238 views

When using an o-ring as a face seal, are the faces flush together?

I'm using an o-ring in a face seal, external pressure configuration as a seal between two metal parts. Are the two faces being compressed and sealed going to be flush together or will there be a gap ...
user30281's user avatar
0 votes
1 answer
119 views

What is the best way to fasten securely a load onto a hollow brick?

Due to the ongoing COVID pandemic, I decided to put a basketball hoop on one of our outside walls, so that me and my son can stretch a bit. The problem is that the wall I plan to put the basketball is ...
NMech's user avatar
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IP grade for specific plastic case

I´m designing an access control device and I need to place it in a plastic case so it can be easily installed on a wall, for example. Also, the PCB will have a special coating for humidity protection. ...
LazyTurtle's user avatar
0 votes
1 answer
58 views

Tunnel lining vs structural support

Is tunnel lining the same thing as tunnel structural support? And then also there is always the initial and final lining? Are three all different things? And how do they relate to waterproofing? It ...
upstream's user avatar
  • 457
2 votes
1 answer
158 views

Calculate thickness of a 1 square meter window made of acrylic in a submarine to endure 100meters

This question would have two parts: 1 - How to calculate thickness of a 1 square meter window made of acrylic in a submarine to endure 100meters of deepness in salt water? I don't remember the ...
pfernandez's user avatar
3 votes
0 answers
75 views

water leak through subterranean cable penetrations in concrete

See the image below for the detail of 4 no. cable ducts that run from a trench in a raft foundation (on the left) through an approximately 1 m square penetration in the raft foundation, through soil (...
egg's user avatar
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1 vote
0 answers
25 views

I want to test non woven fabrics to see if they are polypropylene, the lining material of N95 masks

A group of us are sewing face masks to prevent the spread of sputum. I've learned that the lining of an N95 mask is made of polypropylene. Polypropylene is also a common interfacing product for ...
Linda Brockett's user avatar
0 votes
1 answer
318 views

How to properly fit almuminum glass window without leakage?

I got a brick-wall house. The wall is 25cm thick. I want to add windows. There are 2 ways of adding a window: Adding the window on the inside side of the wall, so that if the aluminium frame of ...
MichaelJackson's user avatar
3 votes
1 answer
94 views

How are water-tight transmissions made, like the kind you see on inboard boats, pumps or food blenders?

I want to replicate the kind of interface you see on inboard boats, pumps, or food blenders. Basically, I want put a motor in a sealed vessel, and have it turn a prop outside the vessel, in water. ...
Alex's user avatar
  • 33
0 votes
1 answer
91 views

How to rotate the blade?

I have developed a design for a river cleaning machine which can cut and collect weeds. The problem which is facing is how to rotate the circular blade which is attached in front of the machine. I ...
Nitesh Singh's user avatar
1 vote
0 answers
66 views

Is there any software for testing cad model waterproofing and isolation?

I have a cad model of a plastic box that is made of two parts. Two parts are connected with resin isolation. I want to test if my part is at least in theory ip86 water-resistant. So is there any ...
Blender's user avatar
  • 119
1 vote
1 answer
63 views

Hermetic Cable Seal With Space Limitations

I have an application wherein I need a hermetic seal at cable exit points from a plastic housing. The cables are not removable. I'd like to achieve this seal using the plastic housing itself by ...
RR495's user avatar
  • 13
1 vote
1 answer
56 views

Waterproof Pan control/bearing/mechanism

Please bear with me - I'm not an engineer, I'm a software developer so lack the language / knowledge to describe what I want precisely. I'm controlling a servo to rotate /pan a platform to hold a ...
Jack's user avatar
  • 111
2 votes
3 answers
91 views

What type of stainless steels can resist 6 months under the sea?

Resist means without catastrophic corrosion here. We assume that there is no coating or anodic protection. The steel can be mirror polished and passivated. To make it more difficult, the shape is not ...
Xiiryo's user avatar
  • 161
0 votes
2 answers
49 views

How deep would a water bottle have to be submerged in the sea to burst? [closed]

Assume the water bottle is the most sturdily built standard water bottle one could acquire in an american supermarket. This is the first question I've asked, so I'm sorry if I'm not in the right ...
Jake's user avatar
  • 1
0 votes
1 answer
71 views

Can we rotate the given white wheel?

When the box is upside down and filled with water, is it possible to rotate the white wheel freely without water being leakage by any method or any existing technology? White is wheel and green is ...
Arun Neupane's user avatar
2 votes
2 answers
2k views

Sealing a rotating shaft in a 3D-printed part

I need to seal a rotating shaft that protrudes through a wall in a 3D-printed enclosure I am designing for a school project. The enclosure is for what will be a small generator that will be used in ...
MaggieMay's user avatar
0 votes
3 answers
81 views

Microphone angled waterproofing

We are working on a mounted screen design that will have microphones at the bottom of the screen housing. The screen housing will be sitting at a 10.5 degree angle. So we are worried about water ...
Tim T's user avatar
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1 vote
2 answers
3k views

Material thickness to withstand Pressure

Let's say I have a Sphere made out of Acrylic, with a diameter d meters. And I want to submerge it down in the ocean. The depth is such that it reaches up to ...
Coto's user avatar
  • 53
0 votes
1 answer
257 views

O-ring compressive force

Is there formula to calculate the compressive force required to achieve x% of squeeze in an O-ring? I have referred the Parker O-ring and Apple Rubber Handbooks, but they provide just approximations. ...
Intekhabalam Saiyed's user avatar
0 votes
1 answer
2k views

O-Ring Selection for a round rectangle groove

I'm designing a water proof case for a power bank to be used in an occasional underwater condition. The input and out put port components already have a gasket or sealing ring. Now to close the case I ...
U7786's user avatar
  • 3
1 vote
3 answers
83 views

Transmission of rotational power across a waterproof boundary [closed]

Considering the situation where: A non-waterproof motor is used inside a waterproof box Something must be rotated by that motor in a wet environment outside the box What is the correct way to ...
Elliot Woods's user avatar
1 vote
2 answers
660 views

How to water seal a metal plate into the wall of a plastic water tank?

I have a 10 x 10cm square plate of metal I would like to insert into a hole in the wall of plastic water tank (cube shape), I'm planning on 3D printing the tank itself (only 1-2 litres). What would ...
Hotjam's user avatar
  • 13
3 votes
1 answer
108 views

How wasn't Thames Tunnel flooded during construction?

I have read the Brunel's shield directly exposed ground which was then excavated by the workers. But the construction was done just a few meters under the seabed. How wasn't the tunnel flooded ...
olegst's user avatar
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1 vote
0 answers
1k views

In the Panama Canal, how are the lock gates kept water-tight (at the hinges, middle, and bottom)?

The Panama Canal has these huge gates. They close so the locks can be flooded or drained. They're swing gates, so 3 questions come to mind: How are they water-tight at the hinges? How are they water-...
DrZ214's user avatar
  • 507
4 votes
1 answer
194 views

Waterproof Case Time Limits

Some cell phone cases have a waterproof rating of IP-68, often specifying that they can tolerate immersion to 6 feet for 30 minutes or 3 feet for 60 minutes. My understanding, however, is that a good ...
bobuhito's user avatar
  • 211
3 votes
2 answers
642 views

Why does epoxy resin become opaque after long exposure to water and LED lamps?

I want to put LED lamps in water. Up until now I used epoxy glass for its isolation, but after one year it starts to become opaque and lose its clearness. What causes the epoxy glass to cloud and ...
Soheil Paper's user avatar
6 votes
2 answers
2k views

Can I seal the inside of a water well to use it as water reservoir when the well is dry?

We've had unusually dry weather and our well has run so low that we had to call in a water hauling company to refill it a few days ago. The water man told me that even though he dumped in ~ 1000 ...
cannotcompute's user avatar
4 votes
2 answers
196 views

Thermoplastics that are permeable to water - high diffusion coefficient

I want to know if there are some fairly common thermoplastics that allow water to pass through (by diffusion) at a relatively high rate (on the order of days). For example, PET water bottles leak ...
Nic's user avatar
  • 291
7 votes
4 answers
2k views

What are the common failure points of waterproof cases?

I am making a waterproof case for my Galaxy S5 and/or my Raspberry Pi. I plan to make the main body from (or at least decorate it with) wood, though I can use other, stronger materials where needed. ...
Keychain1's user avatar
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