Posted Mon Jul 29, 2013, 6:15pm Subject: Rubber gasket Help from Vacuum Pot Gurus
A long time ago I bought a Silex vacuum brewer off of eBay. All I was able to make with it was a mess. The rubber gasket which is supposed to seal the top glass chamber to the carafe is hard and therefore can't provide a good seal. I'm thinking that is the bulk of my problem. I figured I would deal with it later and stashed it. Today while looking for a stashed group head gasket for my Silvia which is long overdue I found both pieces. I had figured that I would have to make a plaster mold of the Silex gasket and cast a new one using silicon rubber. I may someday have to do that, but looking at it today I find it to be a bit flexible. While the Silvia gasket has never been used it is hard and I installed one from the same vintage about five years ago and it was only marginally satisfactory then. I don't imagine the one which I have has improved in the past five years. The plan is to dump both parts into some hydraulic brake fluid for a few days and see what happens. It did wonders for a rubber mat from my old Rec-O-Kut turntable.
The Silvia part is available and I will get a new one soon when I order a bunch of parts for the Silvia. It is over ten years old is due for restoration and PID installation.
I'm hoping for the best with the brake fluid but it would be comforting to know that I can get a replacement Silex part. The part number on the Silex part is: P-251 A and it has patent number of: 2032317 .
I know folks love these machines. Does someone make the rubber part?
Posted Wed Jul 31, 2013, 11:23am Subject: Re: Rubber gasket Help from Vacuum Pot Gurus
Thanks. That is exactly what I am looking for. They are a bit more expensive than Silicon Gear ($25 vs. ~$17) but their part is in production. Andy at Silicon Gear did respond to my e-mail and said he would make a mold but there would be a 250 piece minimum. I was going to try to stir up interest but Dayseal is sure less bother. Maybe soon I'll know what the fuss over vacuum brewed coffee is all about.
Posted Wed Jul 31, 2013, 11:34am Subject: Re: Rubber gasket Help from Vacuum Pot Gurus
I'm pretty sure you are correct as I understand that brake fluid is toxic. I think I can wait for the new Silex gasket to come but Miss Silvia is spurting and squirting so I am desperate there. I know that brake fluid is highly soluble in water so I'll give the Silvia gasket a good rinse before installing it. After the installation I'll do a couple of back flushes. The hope is that any brake fluid which hasn't chemically bonded to the rubber will be removed. I should have paid more attention in my chemistry classes. I wish I knew this stuff better.
Just a word of caution, I would not use brake fluid and food prep equipment in the same sentence, just saying ? :D
Symbols: = New Posts since your last visit = No New Posts since last visit = Newest post
Forum Rules: No profanity, illegal acts or personal attacks will be tolerated in these discussion boards. No commercial posting of any nature will be tolerated; only private sales by private individuals, in the "Buy and Sell" forum. No SEO style postings will be tolerated. SEO related posts will result in immediate ban from CoffeeGeek. No cross posting allowed - do not post your topic to more than one forum, nor repost a topic to the same forum. Who Can Read The Forum? Anyone can read posts in these discussion boards. Who Can Post New Topics? Any registered CoffeeGeek member can post new topics. Who Can Post Replies? Any registered CoffeeGeek member can post replies. Can Photos be posted? Anyone can post photos in their new topics or replies. Who can change or delete posts? Any CoffeeGeek member can edit their own posts. Only moderators can delete posts. Probationary Period: If you are a new signup for CoffeeGeek, you cannot promote, endorse, criticise or otherwise post an unsolicited endorsement for any company, product or service in your first five postings.