Anyone? I am looking to use it on drill mounts with screws.
Anyone? I am looking to use it on drill mounts with screws.
***cough Trivex cough*** ;)
All jesting aside, what about teflon tape? It's the stuff plumbers use, and you should be able trim it so it doesn't show. Now keep in mind, I've never used it for this purpose, but one would think it's worth a shot.
Isn't Trivex prone to problems with locktite too?Originally Posted by Jedi
Even better solution.................
If you want to do a really good job.................use Duc Tape..........they fixed airplane wings with it in World War II, that should for sure work for you purpose and is cheaper.
I have had problems with using locktite on polycarb lenses, I have put locktite on a screw on a metal frame, ten minutes later the customer is walking back into the store with a crack creeping across the lens. I suggest looking at the Hilco Sure-Lok 3 in 1 Fastener.
I agree trivex has never ever cracked...
Chris, I am surprised that you do not have something.
One day I am going to have to go to Montreal, have a cup of coffee with you and talk about your products.
You know I was just replacing lenses into a Minima. The customer purchased this frame from us 6 years ago. Looks like new. But what I laugh at is that we used CR-39. For two years we used this frame and CR-39 without a problem and people held onto them for 4 to 6 years.
Of course, when we sold this frame we told them to be a little more delicate, so we did not sell it like a mass product like the drill monts of 2001, and the frame has the flexibility.
But I will tell you, if I had to restock drill monts again (thank god they are leaving) I would seriously consider those frames.
For-life,
Did or do you stock Silhouette? When I first started dispensing them at an OD's clinic we did a lot in CR-39 without issue. We don't deal with them at the Brass, mostly rigid rimless like Gold and Wood, or Orgreen and you NEED Trivex or high-index (sometimes poly ;) ).
I dont know if you guys in the US deal with Centrostyle but they have Loctite that is poly compatible.
Rick
No, I went the Minimize route instead. I am actually rather happy that I never used the Silhouette. I have seen problems with them. Also, we did the Adidas drill monts. WORST FRAME I HAVE EVER HAD. Because of that frame I will not deal with COS anymore. People really should not have their frames breaking on their face after only one week.
I never had many problems with Silhouette. We just dealt with the Minimal Art and X frame. I completely agree on the Adidas though, complete garbage (though I do like the suns with the RX adapter), hard to believe they come from the same place.
I use the Bolle adapter.
What really has bothered me is that Adidas still walks into accounts and shows them this model. That really drives me up the wall that they would do that. Completely unethical. That frame belongs in the garbage. I would not even give them to children in Rwanda.
Right now we do a lot with the Lightec's. Now that they have switched to the plugs they are really nice, and with Essilor doing the transitions for no charge they are great.
There was a thread on this subject several months ago. Breitfield & Schlickert(sp) had a poly-compatible Loc-Tite product in their catalogue.
There has always been a Locotite version that was compatible. It is used in the medical/chemistry field. Many beakers, containers, etc. are made of poly. That industry has done many studies on what affects poly.
Trivex.......... Minima ........... the absolute perfect pair of glasses...... just
my personal opinion :)
BB
Which line of Minima?
Zero?
LOCTITE 460 is totally safe for POLY. Moreover, if done immediately, you can clean it with some alcool in case of a drop on the lense
Minima is done by Timon
There are (were) dozens of loctite products. Just visit your local bearing supply and you will be amazed. However for mechanical, not ophthalmic use there are three general catagories:
Blue: Will hold screws, nuts, bolts, etc. until a wrench is applied to remove them.
Green: Will hold screws nuts and bolts and is very hard to remove same after application.
Red: You need a torch to remove things after application.
Standard thread lockers with ketones (acetone and such) will most definitely crack Lexan/Polycarbonate, and it doesn't even need to come in contact with the lens-the vapors can cause cracking also. I use medium strength threadlocker on the chassis screws for all other lens materials.
Loctite 4850 is the brand that Judy is referring to and is a cyanoacrylate. No problems with poly in the two years or so that I have used it. Apparently it has a higher viscosity than regular super glue and is designed to flex with the material that is being bonded.
Science is a way of trying not to fool yourself. - Richard P. Feynman
Experience is the hardest teacher. She gives the test before the lesson.
Optiwizard, can you get it apart when the lens breaks and the patient wants to re-use the frame with new lens(es)?
Yes normally with loctite 460 the nuts can be unscrewed using the normal tools.
In case you have totally locked nuts, for instance coming from other labs, there are tricks to take them apart without unscrewing. One trick I use is to use a cutting plier to vertically split the nut in two parts. The screw remains intact. Try it : it is surprisingly efficient.
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