3M 8681 Spray Primer Single Step Primer 08681, 125 Ml

This worked very well to help bond the adhesive to my f150 rear sliding window!

Product is stamped with an expiry date. Expired before I ordered it.

It worked perfectly with the caulk I was using

Do not open this till ready to use. Check the date on the bottom to make sure it is still good. Wear throw away gloves and a shirt and pants you do not care about. If you get this on anything it will not come off. Period. That includes your fingers and other skin. You do not get a dabber, you must purchase that separately. If you do not have a clue on automotive glass replacement, stop now and call a pro. This is the primer you need for use with 3M's 08609 super fast drying urethane. This is what you put on both the glass and metal windshield frame or glass frame. It promotes adhesion with the urethane as well as offering UV protection for the urethane.As well it will stop rust from developing on the pinch weld frame if you scratched the pint during windshield or glass removal. You simply apply this primer to the glass and to the metal area and allow it to set for between 5 to 15 minutes before you apply the urethane sealer and sit the glass. It is best to apply this primer, than get your urethane ready, by that time you are ready to install the glass.

In fact I needed the smaller bottle... it's just for one window and a few patching around the truck body so, this definitely, is a lot !!! Dozens of warnings about fire and breathing, so take it seriously, especially breathing and fire :-) Quality: it is great. It dries fast, especially on warm sunny day. It is BLACK, so be careful not to drip it - it sticks and stains pretty good. Sand the target areas. The "wool dab applicator" ? Not needed so, save your cash. A small 1/2 inch artist's brush will work great as it has to fluffy stuff. Use it outdoors !!! Or use a respirator if indoors and have an exhausting system running !