LERSAISFANY Windscreen Primer Kit 50mL Black — One-Step Urethane Adhesion Promoter, Fast‑Dry UV‑Resistant

LERSAISFANY Windshield Primer Kit is a one-part urethane adhesion promoter that quickly prepares glass, metal, and PVC surfaces for durable windshield and automotive-glass bonding.

When replacing or reseating windshields, the right primer ensures adhesive performance and a long-lasting seal. This compact kit includes a 50mL black urethane primer formulated to boost bonding strength for pinchwelds, encapsulated glass, and PAAS systems without the need for a separate activator. It dries fast, offers UV and corrosion resistance, and arrives with applicator daubers and nitrile gloves so you can complete professional or DIY installations with confidence.

How does this primer improve windshield adhesion?

The primer chemically prepares and primes substrates so urethane adhesives can form a stronger, more uniform bond. It removes microscopic residues, promotes wetting of the adhesive, and creates a surface that urethane can adhere to reliably.

• Formulated specifically for urethane systems to enhance bond strength.
• Promotes consistent adhesive wetting across glass and pinchwelds.
• Reduces the chance of adhesive lift or partial bonding failure.
• Works without an extra activator, simplifying steps.

What surfaces and repair types is it suitable for?

This primer is designed to work on the range of substrates common in auto glass work: windshield glass, painted metal pinchwelds, extrusions, encapsulated units, and PVC components. It’s useful for full replacements, re-seats, and targeted touch-ups where primer is needed for reliable adhesion.

• Windshield glass and automotive side glass.
• Metal pinchwelds and extrusion welds on vehicle frames.
• Encapsulated glass and PAAS (polymer adhesive accessory systems).
• PVC trims and automotive plastic parts requiring urethane bonding.

How quickly does the primer cure and how is it applied?

The one-part formula dries rapidly to a tack-free surface, typically within about ten minutes under normal shop conditions. Application is straightforward using the included daubers—no mixing or separate activator needed—so it fits into standard glass replacement workflows.

• Wipe and clean the area before applying to remove oil and loose debris.
• Apply thin, even coats with the supplied applicator dauber for best results.
• Allow approximately 10 minutes to flash/dry before bead or adhesive application.
• Use protective gloves, eye protection, and a mask when handling primer.

Does it protect against UV and corrosion?

Yes — the formulation includes additives to resist UV degradation and help protect metal pinchwelds from corrosion. That extra protection helps maintain adhesive integrity and the visual blackout often needed at glass edges.

• UV-resistant components reduce sun-related breakdown of adhesive edges.
• Corrosion-inhibiting ingredients help protect exposed metal pinchwelds.
• Black primer finish doubles as a professional blackout for glass edges.

Who is this for: The LERSAISFANY Windshield Primer Kit is intended for professional auto glass technicians, body-shop technicians, and experienced DIYers who perform windshield replacements or repairs and need a fast, single-step primer that improves urethane adhesion. It’s a compact, ready-to-use solution for those who require UV protection and corrosion resistance in addition to reliable bond performance.

Kit contents: 50mL black urethane primer, 2 applicator daubers, 1 pair of nitrile gloves. Follow standard safety precautions and manufacturer instructions when using chemical primers.