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Where to get custom o-rings

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I'm thinking of designing a housing.

 

There's plenty of sources for latches.

Plenty of plastic fabricators.

and worst case, you can have a machine shop make those damn push buttons, that Ikelite refuses to sell.

 

But where on Earth do you get custom sized o-rings, to seal this custom sized housing?

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I'm thinking of designing a housing.

 

There's plenty of sources for latches.

Plenty of plastic fabricators.

and worst case, you can have a machine shop make those damn push buttons, that Ikelite refuses to sell.

 

But where on Earth do you get custom sized o-rings, to seal this custom sized housing?

 

There are plenty of online o-ring distributors around.

You want Buna-N with a Durometer hardness of no more than 70. The higher the number, the harder the o-ring. Nikonos o-rings are super soft at D-50, but most other o-rings are closer to D-70.

O-ring size will be also determined by the application the o-ring. Different applications require different amounts of compression in the static state.

 

Happy hunting and building,

Barry

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I'm thinking of designing a housing.

 

There's plenty of sources for latches.

Plenty of plastic fabricators.

and worst case, you can have a machine shop make those damn push buttons, that Ikelite refuses to sell.

 

But where on Earth do you get custom sized o-rings, to seal this custom sized housing?

Apple Rubber will make anything you want.

Bill

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Hi,

 

You can also get Oring splice kits, which will let you make orings of any size.

 

We use the quiet often on the commercial marine electronics side.

 

best Erol

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If you are thinking of designing the housing, you should look into how to design the groove width and depth that the o-ring will sit in around a normal dimensioned o-ring. There is a lot of o-ring information from online dealers, and many standard diameters and dimensions to choose from, but if you do not make the groove the right size the o-ring will never seal correctly and could easily leak.

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I'm thinking of designing a housing.

 

There's plenty of sources for latches.

Plenty of plastic fabricators.

and worst case, you can have a machine shop make those damn push buttons, that Ikelite refuses to sell.

 

But where on Earth do you get custom sized o-rings, to seal this custom sized housing?

 

parkeroring.com should give you everything you need, design housing around o-ring design and sizes.

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I'm thinking of designing a housing.

 

There's plenty of sources for latches.

Plenty of plastic fabricators.

and worst case, you can have a machine shop make those damn push buttons, that Ikelite refuses to sell.

 

But where on Earth do you get custom sized o-rings, to seal this custom sized housing?

 

I live about a 10 minute drive from what must be the O-ring headquarters of all Southeast Asia (Ive bought rings from them before- theyre dirt cheap!!). If any of the other sources don't pan out- send me a PM with the dimensions. Theres a good chance I will be able to get them and send them to you!

 

Cheers to the DIY spirit!

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There are plenty of standard size o-rings available, so why not design for one of them? Actual custom (as in made to order) is be a major pain & costly.

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PARKERORING.COM

should give you everything you need, including o-ring install information,

 

download their [PDF] Parker O-Ring Handbook which is sort of a bible on o-ring information

Edited by FLAFROG

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In cutting the O ring groove, pay close attention to the groove surface finish!

It should be very smooth with no scratches at 90* to the direction of the groove.

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Use standard o-ring dimensions as a starting point, rather than the housing dimensions. O-rings are made in 5mm steps, so this usually means only a small change in housing dimensions. and spare you a lot of trouble later...

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