Permatex® Flowable Silicone Windshield & Glass Sealant – 42g (#81730)

Achieve an airtight, weatherproof barrier on critical transparencies and frames with the professional-grade Permatex 81730 formula. Available through JHEAR Aerospace, this high-performance windshield & glass sealant is engineered to automatically find the leak source. It flows effortlessly where standard heavy silicone pastes cannot reach, making it an essential addition to any maintenance bay.

Seeks the Leak: Advanced Capillary Flow Action

Unlike standard sealants that sit only on the surface, this advanced flowable silicone windshield & glass sealer is formulated to migrate deeply into narrow joints. Because it seeks the leak, the liquid silicone flows into hidden channels, micro-fractures, and hidden and hard-to-reach areas. It easily fills surface voids, micro-cracks, and complex surface voids and irregularities, ensuring you can completely seal leaks without dismantling entire structural assemblies.

Resists Weather, Extreme Temperatures, and Flight Shock

Once applied, this specialized formula forms a completely clear seal that is highly resistant to weather and environmental degradation. The cured clear seal that results is exceptionally tough, waterproof, durable, and highly resilient. It protects against structural vibration, shock, and extreme temperatures (-62°C to 232°C), absorbing heavy mechanical vibration, shock, and flight stress without peeling, cracking, or degrading. Additionally, it easily resists weather, extreme UV exposure, and most shop chemicals, ensuring a lifetime of flight-line durability.

Simple Application & Quick Curing Process

It is remarkably straightforward to apply windshield and glass protection with the precision-guided applicator nozzle. The formula is fast-acting and dries within 1 hour to a tack-free finish, while achieving a full, structural cure within 24 hours. During the application process, it is easy to neaten up joints and remove excess sealant with a clean cloth before it sets, leaving a perfectly smooth, aerodynamic, and flush profile across any component irregularities.

Suggested Applications:

This ultra-versatile flowable silicone windshield sealer is trusted by technicians across multiple transportation industries. Common suggested applications include:

• Suggested applications: windshields, canopies, and flight deck windows
• Automotive and aviation windshields, sunroofs, and fixed glass panels
• Cabin vents and windows, port lights, and escape hatches
• Vehicle sunroofs, windows, headlamp clusters, and light housings
• Industrial headlamp assemblies and exterior signal pods
• Heavy-duty marine glass, rv vents and windows, and commercial transport hulls
• Weatherproofing rv vents and rooftop equipment pods
• Sealing commercial headlamp assemblies, marine portholes, and exterior enclosures

Technical Specifications:

• Brand / Manufacturer: Permatex®
• Product Number / SKU: 81730
• Container Size: 42g (1.5 oz) Tube
• Chemical Type: Flowable Silicone (Clear)
• Temperature Range: -62°C to 232°C (-80°F to 450°F)
• Cure Time: Tacks/dries within 1 hour; Full structural cure in 24 hours