Av-Dec HT3935-7FR-150 (1.5-Inch-Roll)

HI-TAK PRS® HT3935-7

Overview

HI-TAK PRS® HT3935-7 is a pre-cured polyurethane sealant tape incorporating a fiberglass carrier and designed to provide reliable two-sided sealing and moisture protection between irregular mating surfaces. The product performs optimally when compressed between assembled components, creating a durable environmental seal without curing requirements. It is commonly used in aerospace applications where long-term sealing, vibration resistance, and moisture exclusion are critical.

Key Technical Specs

• Product Type: Pre-cured polyurethane sealant tape
• Carrier Material: Fiberglass reinforced
• Colour: Plum
• Thickness: 0.045 in (1.14 mm)
• Standard Length: 12 ft (3.66 m)
• Width Options: Available in 0.050 inch increments up to 24 inches
• Service Temperature Range: -85°F to +275°F (-65°C to +135°C)
• Shelf Life: Indefinite when stored in original packaging and protected from UV exposure

Approvals & Specifications

• Temperature performance evaluated in accordance with RTCA DO-160G Section 5
• Qualified through two thermal cycles from -65°C to +135°C

Typical Applications

• Aircraft structural sealing
• Moisture barriers between mating components
• Environmental sealing of irregular surfaces
• Access panels and equipment interfaces
• Aerospace gasket replacement applications
• Areas requiring non-curing, removable sealing solutions

Compatibility & Safety Notes

• Supplied fully cured with no chemical reactivity to typical aviation metallic or non-metallic surfaces
• No curing time required during installation
• Best performance achieved under compression between mating surfaces
• SDS available upon request from manufacturer
• Protect unused material from prolonged UV exposure

Packaging & Procurement

• Supplied in continuous tape rolls
• Available in custom widths up to 24 inches
• Can be supplied as die-cut gaskets
• Flame-retardant version available (HT3935FR)

Why This Product is Chosen for AOG / MRO

• No cure time required, enabling rapid installation and return to service
• Provides immediate environmental sealing and moisture protection
• Easy removal simplifies future maintenance activities
• Excellent temperature resistance for aerospace operating environments
• Compatible with a wide range of aircraft materials

Practical Suggestions for Your Team (AOG Mindset)

• Apply under consistent compression to achieve optimal sealing performance
• Ensure mating surfaces are clean and dry before installation
• Consider die-cut gasket versions for repeatable installations
• Store unused material in original packaging away from UV exposure

Manufacturer / Aviation Spec Codes

• Product Name: HI-TAK PRS® HT3935-7
• Product Family: HI-TAK PRS®
• Type: Pre-cured polyurethane sealant tape
• Alternative Version: HT3935FR (Flame Retardant)