CRL Windscreen and Body Sealant CRL7708 10.1 oz Cartridge — Ready-to-Use Butyl, Permanently Tacky

CRL CRL7708 is a one-part, ready-to-use butyl sealant formulated to reseal windshields, backlights and metal body joints while remaining permanently tacky and flexible.

When you need a reliable bead that bonds to glass, butyl tape and metal without curing into a hard gasket, CRL's windshield and body sealant provides a non-skinning, flow-grade butyl delivered in a cartridge for fast, clean application. It’s designed for automotive glazing tasks like resealing windshields and rear glass as well as sealing drip rails or pinchweld areas after vinyl hardtop installs. Because it stays tacky, it maintains adhesion and seals against water immediately after tooling.

How does this sealant perform on windshield and backlight resealing?

CRL7708 lays down as a flexible, rubbery bead that adheres strongly to glass and surrounding substrates. It does not cure into a rigid compound, so it tolerates thermal movement and vibration common in vehicle glass installations.

• One-part, ready-to-use cartridge for simple application
• Remains tacky — no skinning or curing into hard material
• Good adhesion to glass, butyl tape and metal pinchwelds
• Immediate water testing possible after tooling

What surfaces and repair tasks is CRL7708 suited for?

This sealant is formulated for automotive glazing and body sealing jobs. It works wherever a non-curing butyl bead is required: windshields, rear lights, drip rails, and around vinyl hardtop flanges.

• Glass-to-body joints for windshield and backlight resealing
• Drip rail sealing after trim or top installation
• Pinchweld reseals where butyl or adhesive contact is needed
• Compatible with metal panels and butyl tape interfaces

How is the product applied and tested on vehicles?

The sealant is supplied in a cartridge for caulking guns so you can lay a continuous bead. Because it remains tacky, you can tool the bead and test for leaks with water immediately—no wait time for curing.

• Load cartridge into a standard caulking gun for controlled dispensing
• Tool bead to desired shape and pressure for proper contact
• Perform immediate water test to confirm sealing integrity
• No oven or extended cure time required

Are there handling or durability considerations I should know?

CRL7708 is a flow-grade butyl designed to remain tacky throughout its service life, which makes it excellent for long-term adhesion but means surfaces can remain slightly tacky. Follow standard safety and surface-preparation practices for best results.

• Keep surfaces clean, dry and free of grease before application
• Store cartridges per manufacturer recommendations to preserve consistency
• Remains flexible and resistant to vibration and thermal cycling
• Not intended to cure into a rigid seal — designed to stay rubbery

Who is this for? CRL7708 is aimed at professional auto glass technicians, restoration shops, and experienced DIYers who need a dependable, ready-to-use butyl sealant for resealing automotive glazing and finishing body joints. If you require a non-curing bead that bonds well to glass, butyl tape and metal and allows immediate leak testing, CRL7708 is engineered for those tasks. It’s not a paintable or structural adhesive—choose it when you need a long-lasting, tacky seal for glazing and trim applications.