Hairspray your hydrophobics?

[allanon]

Our edger absolutely hates a certain brand of super-hydrophobic ARC. Even with a high-plus block, good leap, and good rikki pads, they tend to slip.

One of the lab reps recommended applying hairspray to the lens. Any thoughts?

[chip anderson]

Don't know about oleophobics but hair spray has long been used by labs as an anti-slip.

[shellrob]

My lab recommended I get the Aqua net to do those jobs and I did, however it did not work. Plus, someone on here said NEVER use hairspray on those ar lenses. I stopped doing it and got the clear stick pads to use along with the 3m pads and have never had a problem since.

[Barry Santini]

Solution: LEAP III LSE

Accept no substitutes!

barry

[Fezz]

How about the "Hooker" pad from OMS?


You could always by regular ar and add the "slick" coat after you edge them.

Alternative suggestions.

[MarcE]

My lab said that the hair spray doesn't work either.

Here are my tricks:

Clean the front with denatured alcohol, unless it has a grip coat like Alize
Red AR pads from Optisource
Flexible blocks from Western (I believe). The flexible blocks will conform to the curve of the lens, giving more surface area adhesion.
I make sure that the entire area of the leap pad is stuck to the lens by pressing with my fingers
Clamp the blocks for a few minutes with a spring clamp or in the edger.
Edger clamp pressure on highest. Edger cut speed on low or fragile.
Put another blocking pad on the backside.

and finally - don't order the hydrophobic coating on narrow lenses that require a half-eye block for edging or very high minus lenses

I have heard that wide scotch tape can be used on top of the lens, but haven't tried.

However the best way, which is the most time consuming, is to crib the lens down to 2 eyesizes larger and reblock and reedge.

[apaul]

However the best way, which is the most time consuming, is to crib the lens down to 2 eyesizes larger and reblock and reedge.

If it is a varifocal you will have to remark the lenses & the job will take maybe 3 times longer than normal but its probably the perfect solution & worth it if they are expensive lenses

Why havent I done it before!!:hammer:

Al

[allanon]

We've found the red optisource pads to work the best, too. Leap 3 LSE is a close second.

High-Plus flexible blocks.. yes.

I also like those pads that look like blue dots.

I definitely feel that hairspray helps. What I can't decide, is it better to let the hairspray dry completely, or block it when it's tacky :)

[apaul]

I thought hair spray can damage coatings?

[EyeFitWell]

I've used hairspray for a while, and I've never had a problem with it. Aqua Net is my preferred brand.
I've only used this in rare circumstances where Alize had no grip coat b/c it was cleaned, etc. Not on every job, so maybe it can damage coatings but I never saw it happen.

[griffin]

DON'T USE HAIRSPRAY!!!
This is really bad stuff around most AR coats - it will cause eventual crazing. Maybe a single time isn't that bad, but it's not a good practice. You will immediately remove the hydrophobe layer in the AR stack, and not be giving your customer what they purchased.

Recommened - the Riki Pad, followed with the "Red" leap pad - I use the ones from Phantom Research. We did extensive trials on most of the pads out there, and this is how we achieved our best reaults.

EDIT -this is Igor 22, didn't realize the comp signed in as my wife.

[EyeFitWell]

Griffin, can you back that up with any documentation?
I've done it forever, and never had a problem with it. Besides, what do you think the grip coat is?? (It's essentially hairspray)

[Audiyoda]

I've been to the Omega and Avisia Labs in Dallas where the bulk of Crizal Alize is done. The Azure anti-slip coating is nothing more than AquaNet (same basic formula) with a slight amount of color added to it for distinction. I've seen it applied and talked with the coating manager at length about their process.

[Chris Ryser]

It takes certain acids or hot solvents to damage or remove the hydrophobic layer. I dont think hairspray contains any of these.

[allanon]

It takes certain acids or hot solvents to damage or remove the hydrophobic layer. I dont think hairspray contains any of these.

Or else we'd tell all the ladies not to use hairspray. I don't think any respectable coat would be affected.