Do your van windows require adhesive and primer?Updated a year ago

The van windows we sell are one of these types:

Bonded -- Bonded windows require primer and a urethane adhesive for installation. The primer cleans the glass and steel surfaces to be connected together, and a thick bead of adhesive fastens the window to the van and seals out moisture.

Clamp-in -- Clamp-in windows do not require any primer or adhesive, as most ship with their own weatherstripping or external rubber compression ring that will seal itself against the body of the van when it is tightened in place via the trim ring from the inside. However, some clamp-in windows require foam gasket seal tape for this purpose -- the the product listing for details.

The style should be listed in the specifications table on the product page for each window model.