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PU Windshield Adhesive (Automotive) SV571

SV571 polyurethane windscreen sealant is engineered for automotive windshield structural bonding and sealing — a single‑component, moisture‑curing adhesive that forms a high‑strength elastic bond (tensile strength ≥4.0 MPa, elongation at break ≥300%), preventing windshield displacement from vibration or impact to ensure driving safety and body integrity. It offers excellent water and shock resistance with no corrosion to metal or glass substrates. Surface dry time ≤40 minutes, curing rate ≥3.0 mm/24h — meeting the fast‑turnaround demands of auto repair shops.

Appearance Paste
Shelf Life 9 months

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Excellent water and shock resistance
Moisture curing polyurethane based adhesive.
High initial bond strength
Can be overpainted

Features and Benefits

Durable Sealing with Water & Vibration Resistance: Offers reliable waterproof and vibration‑damping performance. Suitable for windshield, side and rear window bonding of passenger cars, trucks, buses and motorcycles, ideal for automotive aftermarket glass replacement.
Non‑Corrosive & Eco‑Friendly Formulation: Non‑corrosive to painted car body and aluminum substrates. Low‑odor PU formula.
Strong Multi‑Substrate Adhesion: Provides dependable bonding to auto glass, painted metal, aluminum and FRP. Proper surface cleaning is required before application.
Practical Application Performance: One‑component moisture‑curing with high initial strength and non‑sagging property. Skin‑over ≤40 min, curing rate ≥3.0 mm per 24h. Cured sealant is overpaintable and compatible with most automotive paint systems. 9‑month shelf‑life under cool and dry storage.

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Product Parameters

Product Parameters
Product Title	PU Windshield Adhesive (Automotive) SV571
Main Ingredients	One component, moisture-cured polyurethane
Appearance	Paste
Density，g/cm3	1.44 ~ 1.46
Sagging degree, mm	≤0.5
Surface dry time, min	≤40
Curing rate, mm/24h	≥3.0
Non-volatile matter content, %	≥95
Hardness, Shorea	55 ~ 70
Tensile strength, Mpa	≥4.0
Elongation at break, %	≥300
Tearing strength, kN/m	≥10
Tensile shear strength, Mpa	≥2.0
The peeling bonding property	More than 90% cohesive failure
Storage stability, %	≤40
Shelf Life	9 months

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