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External Display Box Condensation Problem
Does anybody know of any type of clear vinyl or simular spray to elimate condensation inside a display cabinate ???
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7 Replies
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Try this have uesd it on race cars.
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Does the cabinet have enough ventilation at the base. Cabinets can’t be totally sealed otherwise you will always get the problem, obviously u cant put holes in the top or sides and undermine any seal but along the lower edge most decent cases have vent holes.
Just a thought.
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thanks for the quick updates.
I will try that stuff – how long does it last for ??
would prefer a vinyl so I can apply and forget about it.
The cabinet does have holes in the bottom.
Comments from the manufacturer – they have tried more holes over the year to little success
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When fitted did you apply silicon to the screw holes (assuming its screwed to a wall) otherwise this could be your problem
John
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I’m always of the opinion to VENT boxes rather than make an attempt at sealing them..ie. you CAN’T seal a box…water will always get in somewhere.
Just re-read first post – missed that it’s a display case!
The Rain-X stuff is OK…but you’d be better off creating an air flow inside. If it’s INSIDE even a cheapo PC case fan (12v) will work wonders. If OUTSIDE, the louver vents (B&Q etc) are more effective than just holes.For normal ‘boxes’. A couple of small drain holes in the bottom (near the wall or bracket) suffices for most boxes. Have done proper alloy louvers in big ones.
Also make sure the electric are mounted on the TOP or back…NEVER on the bottom. The amount of old boxes I’ve opened up to see gear trays and inch deep in murky slime (blech) beggars belief!
Another problem in INTERNAL boxes, especially in kebab shops, is overheating. Again – venting top & bottom if possible to aid airflow.
I’ve been called out to a few of the ‘modular’ type boxes that have been on the verges of going up in flames before.Dave
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Check out what the backing is made of. Unbelievably we had one with cardboard in the back, this just absorbed water, when changed for corex we had much more success. Other fixes are gravel around the base (if it’s free standing on grass) trying to seal all edges except the base and checking all fixings are sealed (again if freestanding) As the one we had bother with was north facing we coated the rear in white as it wasn’t seen anyway to try and lessen the heat absorbed by the case.
A combination of all these fixed the problem – unfortunately the case is 45 minutes away on the worst road in the area!
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At this time of year it is nigh on impossible to stop misting or condensation in display cases.
It is due to the dew point being at a certain level due to the weather conditions at this time of year.
That’s why we get foggy mornings and motorway pile-ups at this time of year also.
It takes a lot to convince a customer though.
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