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unitelex · 28th Apr 2019, 8:20 pm

I was de-gooing a Philips N4407 last week.
I tried IPA Isopropyl Alcohol and Methylated spirits, the latter was better

I did not try Acetone.

As others have said the Goo gets everywhere, hands, tools, anything you touch after working on it, light switches, doors...

Best not to start by trying to wipe the stuff off, it just spreads.
I would recommend scraping the stuff off with a screwdriver or spatula first, then wiping whats left with solvent doused tissue. Then dispose of the tissue and start again with a new one..

Best to use have lots of tissues to hand to wipe the stuff off your tools as you go, and a plastic bag to drop the tissues into.

I read that this degeneration of the rubber was due to inadequate curing of the rubber during manufacture.
Would be very interesting if anyone knows how long it took before Philips discovered the problem and how they reacted. Judging by the number of machines which have this problem, it probably took several years to discover it. Maybe they had long stopped producing these models by that time.

28th Apr 2019, 8:20 pm	#12
unitelex Hexode Join Date: May 2005 Location: Greater Manchester, UK. Posts: 496	Re: Philips Reel to Reel help!! I was de-gooing a Philips N4407 last week. I tried IPA Isopropyl Alcohol and Methylated spirits, the latter was better I did not try Acetone. As others have said the Goo gets everywhere, hands, tools, anything you touch after working on it, light switches, doors... Best not to start by trying to wipe the stuff off, it just spreads. I would recommend scraping the stuff off with a screwdriver or spatula first, then wiping whats left with solvent doused tissue. Then dispose of the tissue and start again with a new one.. Best to use have lots of tissues to hand to wipe the stuff off your tools as you go, and a plastic bag to drop the tissues into. I read that this degeneration of the rubber was due to inadequate curing of the rubber during manufacture. Would be very interesting if anyone knows how long it took before Philips discovered the problem and how they reacted. Judging by the number of machines which have this problem, it probably took several years to discover it. Maybe they had long stopped producing these models by that time.