Tip & How-To about Cell Phones

PROTECT YOUR MOBILE

For greater protection please cover your mobile with plastic coating.thank you..

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festina model-F16358, I have the above said model watch! Just would like to know if the glass is scratch resistan/Proof? Which country is this model made in? Best regards- Kurian


The class does scratch once encounters rough surfaces or impacts that are coarse. Usually the manufacturer should have provided a plastic coating to prevent immediate contact with extenal coarse substances either as protection against or sustaning the presentatability. Acquire from the manufacturers product retailers any protective plastic coats.

Feb 17, 2011 | Computers & Internet

1 Answer

What are the differences between lenses? I know some are made of plastic and some from glass..Thanks!


There are couple of materials in which sunglassess are made of. 1. Glass Lenses
- it's has number of advantages: -Exceptional scratch resistance (don't need scratch resistant coating).
-Excellent optical clarity.
-Anti-reflective (AR) coating adheres to glass very well.Disadvantages are:-At least twice the weight of plastic or polycarbonate lenses.
-About 25 to 40 percent thicker than polycarbonate and high index plastic lenses.
-Can shatter or chip easier than lenses made of other materials.
-Require a special coating to provide 100% UV protection Second type is Plastic Lenses:Advantages:

Lightweight - About half the weight of glass lenses.
Plastic lenses accept tints easily.
More shatter - resistant than glass lenses.


Disadvantages:

About 20 to 35 percent thicker than polycarbonate or high index plastic lenses.
Require scratch-resistant coating for added durability.
Require a special coating to provide 100% UV protection.
Another type is Polycarbonate Lenses:Advantages:
Safest lens material - 10 times more impact resistant than other lenses.
Thin - About 20 to 25 percent thinner than plastic or glass lenses.
Lightweight - About 20 percent lighter than plastic lenses.
Blocks 100 percent UV rays without needing a special coating.
Disadvantages:
Requires scratch-resistant coating for durability.
Peripheral vision may be slightly less clear in strong prescription powers.
More lens reflections than glass or plastic lenses (AR coating recommended). High Index Plastic Lenses-Advantages:

Lightweight - Between plastic and polycarbonate lenses in weight.
Thin - About 15 to 30 percent thinner than plastic lenses.
Better peripheral optics than polycarbonate lenses (for prescription sunglasses).
Disadvantages:
Requires scratch-resistant coating for durability.
More lens reflections than glass or plastic lenses (AR coating recommended)

Nov 07, 2010 | Clothing Accessories

1 Answer

protective coating peeling off 3 year old stainless steel refrige


If it is the plastic protective coating, it should have been removed after installation. if you scrape with sharp object you will damage stainless finish. good luck!

Jul 02, 2009 | Frigidaire FRS-26DR7D Side by Side...

1 Answer

Dog Hair under protective coating on monitor


get your Dell manual out and look in the index for lcd cover. It should tell you how to take it off and maintain it. If things get behind it it should be removable. Also www.dell.com is very informative with their support group.

Sep 13, 2006 | Dell UltraSharp 1905FP 19" LCD Monitor

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