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Waterproof Heat Sink?
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Waterproof Heat Sink?

by johnyradio on Wed Nov 08, 2017 1:10 pm

Hi

Any tips for heat-sinking a waterproof LED strip?

THX
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Re: Waterproof Heat Sink?

by franklin97355 on Wed Nov 08, 2017 4:09 pm

Is it waterproof with a cover or are the LED's waterproof themselves?

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Re: Waterproof Heat Sink?

by johnyradio on Fri Nov 10, 2017 12:49 am

franklin97355 wrote:Is it waterproof with a cover or are the LED's waterproof themselves?

Hi, good question.
Both.

Also, i could have asked:
"Any tips for waterproofing an LED strip,
while allowing heat to escape?"

thx!
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Re: Waterproof Heat Sink?

by adafruit_support_bill on Fri Nov 10, 2017 6:56 am

Water is a much better thermal conductor than air, so heat-sinking should not be necessary. We have two types of 'waterproof' strips. The waterproof analog strips have a molded flexible clear plastic face. The waterproof digital strips are encased in a silicone sheath. In both cases, additional steps are required to waterproof your electrical connections to the strip.

Silicone sealant works. But be sure to get the type rated for electrical use. The more common 'acid cure' type (smells like vinegar) will attack the copper in your connections.

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Re: Waterproof Heat Sink?

by johnyradio on Fri Nov 10, 2017 9:29 am

adafruit_support_bill wrote:Water is a much better thermal conductor than air

then i wish i was submerging the strip!
Alas, i only want it to be protected against rain--
it won't be submerged.

adafruit_support_bill wrote:Silicone sealant works. But be sure to get the type rated for electrical use. The more common 'acid cure' type (smells like vinegar) will attack the copper in your connections.

Great tip!
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Re: Waterproof Heat Sink?

by adafruit_support_bill on Fri Nov 10, 2017 10:01 am

As long as there is free air circulation across the front of the strip, it should not be a problem. If it will be enclosed, then mounting the strip on an aluminum plate or in an aluminum channel should give you sufficient heat dissipation. There are aluminum extrusions sold for that purpose. We do not carry any at this time.

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Please be positive and constructive with your questions and comments.