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DTR650 - radio covered in white residue - why?

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g8tzl2004
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Joined: Wed Sep 08, 2004 10:13 am

DTR650 - radio covered in white residue - why?

Postby g8tzl2004 » Wed May 16, 2018 1:55 pm

I dug out my DTR650's the other day and the outer rim of the body (basically the entire top, bottom and sides) was covered in white residue!! It looked like it had been painted white!! I've seen this on Motorola antennas...but it was many times worse on the DTR650's...much thicker residue .

Any idea what causes the white residue...does the radio rim material react with something else that was in the storage box or does it happen naturally? It comes off when you rub real hard with a damp cloth but I think I'm taking a layer off..I feel I should be adding something back...I tried some WD40 which provides a waxy finish but I think it is no better than using water.

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abbylind
Posts: 517
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What radios do you own?: What dont I own?

Re: DTR650 - radio covered in white residue - why?

Postby abbylind » Wed May 16, 2018 4:56 pm

I bought one that looked that way too. Thought a painter used it. Bought a new plastic housing, looks great. If you go that route dont forget to order a new display cover, it doesnt come with the housing

RFguy
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Re: DTR650 - radio covered in white residue - why?

Postby RFguy » Thu May 17, 2018 6:11 am

Standard on certain Motorola rubber items. I see it on knobs and other rubberized items that have been in storage.

g8tzl2004
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Joined: Wed Sep 08, 2004 10:13 am

Re: DTR650 - radio covered in white residue - why?

Postby g8tzl2004 » Thu May 17, 2018 6:44 am

I used a damp cloth and rubbed real hard and eventually the white residue started to come off...I got a black residue on the cloth which I guess was the top layer of the rubber. I think the black rubber residue left on the cloth provided a bit of abrasion which helped get more of the white residue off. I also used an very firm old toothbrush to get inside the corners etc. I read that others have used Pledge but I think I would have ended up with a polished white case :)...but it might have worked. I wondered whether contact cleaner might have worked but that might have dissolved the rubber. Anyway, rubbing real hard with a damp cloth has sort of worked.


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