Which product is applied inside and out on a windshield during preparation?

The product applied inside and out on a windshield during preparation is SP-207. This product serves as a cleaner or primer that ensures the glass surface is adequately prepared for the application of any adhesive or sealant that follows. By applying it on both sides of the windshield, SP-207 helps to remove contaminants and create a suitable bonding surface, which is crucial for ensuring that the adhesive adheres properly and provides a strong, durable seal. This preparation step is essential for the integrity and longevity of the windshield installation, making SP-207 a vital component of the process.