Do you apply this immediately before installing the window (I plan on using rope) or can you put it on a while before installing?

I'm not certain as to what you mean by the term "rope". I'll speculate that what you're referring to is a Butyl Sealant, what we commonly call Ribbon Sealer. 3M glass products are intended for use as part of the repair process outlined in service manuals provided by automotive manufacturers. For detailed instructions by car model, refer to information available from the automobile manufacturer. 3MTM Windo-WeldTM Ribbon Sealer is designed and intended for use as a replacement to original equipment butyl installations or as a supplementary sealant when installing stationary glass with urethane adhesive. 3MTM WINDO-WELDTM RIBBON SEALER IS NOT INTENDED FOR A WINDSHIELD OR BACKGLASS WHERE OEM URETHANE WAS ORIGINALLY USED. For urethane set glass, refer to and follow 3M Auto Glass Replacement Urethane directions. In some urethane set applications, use of this product may be appropriate as a supplementary sealant. 3MTM Single Step Primer is designed for use with 3MTM Adhesives. It adds strength to the Urethane Adhesive bond, helps protect the adhesive from Ultraviolet degradation, and is used to cover bare metal if damaged during removal. 3MTM Single Step Primer should be applied 10 to 15 minutes before installing the replacement glass.

Is there a product that has replaced this primer? I cant seen to find this product anywhere. i am using the 3m windo-weld in an upcoming project.

Hi Brian! Thank you for your question. Please feel free to call us at 877-MMM-CARS, Option 2 so that we gather a few additional details about your application. The 3M 08682 Single Step Primer is still a good product number.

can or should this be used with 3M channel bond?

Hi Victor! Thank you for your question. The 3M 08682 Single Step Primer is designed specifically to promote adhesion with 3M urethane windshield adhesives.

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Description

🛠️ Lock in strength, block out UV — the primer pros trust!

UV SHIELDED FORMULA - Protects urethane from UV damage, preserving strength and appearance over time.
SEAMLESS URETHANE BONDING - Specifically engineered to maximize urethane adhesion in automotive glass, ensuring a rock-solid, durable fit.
QUICK EFFORTLESS APPLICATION - One-part, fast-drying primer that requires no activator—get the job done faster with less hassle.
CORROSION DEFENSE ON PINCHWELDS - Effectively inhibits corrosion, extending the lifespan of your windshield installation.
VERSATILE WINDSHIELD COMPATIBILITY - Perfect for multiple windshield types including encapsulated glass and PAAS, making it your go-to primer.

3M Single Step Primer 08682 is a black, one-part urethane primer designed for automotive glass applications. It promotes superior urethane adhesion, inhibits corrosion on pinchwelds, and offers UV resistance to extend windshield durability. Fast-drying and easy to use without activators, it supports a variety of windshield types for professional, long-lasting installations.

Specifications

Brand	3M
Color	Black
Finish Type	Eggshell
Size	1.01 Fl Oz (Pack of 1)
Item Volume	30 Milliliters
Special Feature	UV Resistant
Unit Count	1.01 Fluid Ounces
Paint Type	Specialty
Specific Uses For Product	Exterior
Surface Recommendation	Glass
Indoor/Outdoor Usage	Indoor
Item Form	Liquid
Included Components	Auto part, Automotive Accessories, Replacement and Performance parts
Is Waterproof	True
Model Name	Single Step Primer [Bottle]
Package Information	Bottle
Color Code	3M
Full Cure Time	1E+1 Minutes
Coverage	3M
Water Resistance Level	Water Repellent
UPC	051135086827
Global Trade Identification Number	00051135086827
Manufacturer	3M
Item Weight	1.6 ounces
Product Dimensions	2.75 x 1.25 x 1.25 inches
Item model number	08682
Manufacturer Part Number	8682
Special Features	UV Resistant
National Stock Number	8040-01-361-3132

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