Optically clear adhesive is seen as the basic component or necessary raw material of touch screen so that you must be more careful when you are seeking for a suitable one. You are so lucky that we have a good recommendation for you now. Our 175um LCD Touch Screen Assembly OCA Optical Clear Adhesive for iPhone 4/4S is characterized by good clarity， high transmission of light， adhesion ability， excellent weather resistance， water resistance， high temperature resistance and UV protection. It offers you moderate thickness and will not produce yellowing， peeling or deterioration after a long time use. A perfect adhesive for your iPhone 4/4S!                                    Features             Reduce glare and the light loss that your LCD screen gives out<br> Increase the brightness of LCD screen and provide high light transmission rate<br> Increase the contrast， especially the one under strong light condition<br> Characterized by good clarity， high transmission of light， adhesion ability， excellent weather resistance， water resistance， high temperature resistance and UV protection<br> Will not produce yellowing， peeling or deterioration after a long time use<br> A basic component or necessary raw material of LCD touch screen<br> A perfect adhesive for your iPhone 4/4S<br>                                                            Specifications             Thickness     175um    <br> Dimensions     ( 7.8 x 5.2 )cm / ( 3.07 x 2.05 )" (L x W )    <br> Weight     0.07 oz / 2 g    <br> Compatible with     iPhone 4/4S      <br>                                                             Package Includes            1 x 175um Optical Clear Adhesive for iPhone 4/4S