Polycarbonate dip coating

[Websta]

Is there someone who would like to swop info on dip coating of Poly lenses?
We carry an extensive range of Poly lenses in various designs and manufacturers and it is my task to hardcoat and Ar coat these. We are having some success, but are still fighting with smaller issues. I would also welcome some advice on AR coating of Poly and High-index materials.

Look forward to any replies.
Thanks.

[prolens]

I am also looking to find a polycarbonate hardcoat dip, but in the UK I am struggling to find a supplier. Can anyone advise if they have tried hardcoating with success their own polycarbonate lenses and what product they used.

kevin.byrne@prolens.co.uk

[LKahn]

Kevin

We are a manufacturer of tints, coatings and chemicals for the optical industry. We are introducing a new scratch resistant coating in the next few days. It is called LensArmor #1545.
It has the following characteristics:

1. Optically clear
2. Non-Yellowing
3. No primer needed
4. Applied at room temperature
5. One step process
6. Cures at room temperature or a thermal (heat)
7. Applied in a dip, bath or spray-on process
8. Economical to use
9. Works on all types of plastic lenses
10. Non-Toxic and No Haz-Mat
11. Non-Flamable
12. 32 oz (946 ml) bottle
13. No US DOT restrictions on movement by airfreight

If you have interest please contact me via email

[prolens]

Dear Sir

Thank you for your reply to my post

We are very interested in trying your product. Can you confirm that this product will work on polycarbonate.

Could you please adivse if you are able to either supply a small sample or advise how much this product would be.

[LKahn]

Sir

Our LensArmor #1545 coating works for all types of plastic lenses including polycarbonate. Please contact me via email with your address to send you a sample at no charge. Since you are in the UK please provide a UPS, DHL or FedEx number to ship the sample. It will be a few days before we will have samples available to ship. I will contact you just prior to shipment.

[prolens]

Before I arrange for UPS to collect your parcel, can you please confirm that your product will work on Polycarbonate.

I read that it works on all kinds of plastic, but you do not mention Polycarbonate. If you confirm this for me and I arrnage a collection at your conveniance.

Kind regards

Kevin Byrne

[LKahn]

Kevin

LensArmor works for polycarbonate as well as all other types of plastic lenses. We currently have begun providing it to a lens manufacturer that will be using it on millions of polycarbonate lenses each month. A sample should be available at the beginning of August.

When the product goes on the market it will be offered in the following unit sizes

1. 32 fl oz (946 ml) case of 12 bottles (minimum)
2. 30 gallon (113.53 L) drum
3. 55 gallon (208.14 L) drum
4. 250 gallon (946.07 L) tote

One gallon should coat about 1100 pair of polycarbonate lenes. Currently we do not have a distributor in the UK for this product. If these unit sizes are to large, advise us of the name of a distributor near you in the UK and we will approact them to carry the product or we can give you a name of a US distributor that sells in the UK.

[Ace]

I am also looking to find a polycarbonate hardcoat dip, but in the UK I am struggling to find a supplier. Can anyone advise if they have tried hardcoating with success their own polycarbonate lenses and what product they used.

kevin.byrne@prolens.co.uk

I would try SCL International in France or SDC in California

[dochsml]

I would try SCL International in France or SDC in California

I've heard good things about SCL International as well. Plus they make the machine and the coating.

[Jim Stone]

Websta,
you need to go to web site Colts labs. There you will find all kinds of ratings. If it aint there , it probly aint good.

[Chris Ryser]

We carry an extensive range of Poly lenses in various designs and manufacturers and it is my task to hardcoat and Ar coat these.

Uncoated Polycarbonate lenses can only be coated with a real hard coat material.

These products used presently, are Polysiloxane for thermocure and UV cure materials which are either processed in a dipcoating system or in the case of UV cure on spin coating system made for optical labs.
These materials provide the necessary hardness needed for the ultra soft material of Polycarbonate. See properties at :
http://optochemicals.com/polycarbonate_properties.htm

Polysiloxane coatings are very compatible with AR coatings while UV cure coatings are much less compatible with the AR coating process.

The thermocure coatings have to be shipped on dry ice, kept in a fridge and are very sensitive to heat, humidity and should be used only under very controlled conditions. UV coatings usually have no shelf life and do not need to meet any of above conditions.

[Chris Ryser]

I am also looking to find a polycarbonate hardcoat dip, but in the UK I am struggling to find a supplier.

Try:
http://www.groupecouget.com/index.php?art=3&th=84