Can anyone recomend the best blocking sytem to eliminate slippage problems with teflon lenses?
Can anyone recomend the best blocking sytem to eliminate slippage problems with teflon lenses?
Apply it yourself.....................
Originally Posted by Russ_ABOC
Get the lenses without the Teflon..........cut them and then apply the slick coat yourself, save money and trouble.
For the original poster;There are a variety of anti slip pads and adhesive protectors for hydro coatings. Go to any optical supply website and look at the edging supplies.Get the lenses without the Teflon..........cut them and then apply the slick coat yourself, save money and trouble.
Chris, what's involved in applying the coating yourself?
Used to have a big problem with Teflon slipping.
I now use a leap pad on the back side of the lens and have a stop committed to doing the super AR coatings which I apply the backside leap pad to.
No problems since using a second leap pad.
They slip every time they clean the machine. wait a few days and it will get better.
Put the blue dots on the back surface and get some red pads from ODG
Clean the lenses with 90% alcohol
Use the clear pad that comes with the lenses
block them and let them sit for a few hours before edging
There are few new blocking pads out now one is the hydro pad from Dac the other is a secure edge pad from optical supply .You must make sure the lens is clean alcohol also a dry edger is best the optronics 7-e is great for them .If you are using a wet edger you are going to have some problems .
Lets all hope they figured it out , as this is 7 months old, and thousands of dollars on slippage if not.:D
Chris, what's involved in applying the coating yourself?
KStraker............as the coating material is an air cure polysiloxane polymer dissolved into water as a carrier, it is non agressive, non toxic and can be handled in any place without ventilation and will not attack skin on fingers.
You take the cut, finished lens, as a last step before mounting into frame, dip the lens into the liquid for not more than 1-2 seconds and retrieve. You can repeat this step 1 or 2 more times if you want a thicker layer.
You will have a few droplets of water left on the surface which you dry up with a clean tissue, starting in the middle of the lens while rotating the lens and the end up bu wiping the edges.
(The edges are also coated and if you drag the coating material from the edges into the lens surface you wi;; have a hard time removing the smears)
The lens surface feels now like highly polished lens and as slick as any you get from coaters. You can actually pull around 200 pairs of lenses out of a 1 liter bottle, so the cost is a small fraction of the factory supplied slick coat, and does last as long as they do.
See at : http://optochemicals.com/crystalclear.htm
Optiboard product review: http://optochemicals.com/products/di...ick_review.htm
There are currently 1 users browsing this thread. (0 members and 1 guests)
Posting Permissions
Reply With Quote
Bookmarks