HUMISEAL HumiSeal Acrylic Gel (55CC-SYRINGE)

HumiSeal® Acrylic Gel

Overview

HumiSeal® Acrylic Gel is a fast-drying, single-component thixotropic acrylic paste designed to provide enhanced moisture and environmental protection for printed circuit assemblies (PCBs). Developed for use alongside HumiSeal acrylic conformal coatings, it is ideal for sealing, damming, and reinforcing protection around component leads and sensitive electronic areas. The gel fluoresces under UV light for easy inspection and is fully compliant with the RoHS Directive.

Key Technical Specs

• Product Type: Single-component thixotropic acrylic gel
• Density: 0.95 ± 0.02 g/cm³
• VOC Content: 699 g/L
• Recommended Thickness: Up to 3 mm
• Tack-Free Time: 10 minutes at 80°C
• Recommended Cure: 3 hours at 80°C
• Full Property Development: 7 days
• Shelf Life: 12 months

Approvals & Specifications

• RoHS Directive 2002/95/EC compliant
• UL 94 V-0 flammability rating
• MIL-I-46058C insulation resistance tested
• ASTM D1475 (Density)
• ASTM D150-98 (Electrical Properties)

Typical Applications

• Sealing and damming on printed circuit boards (PCBs)
• Additional protection around component leads
• Moisture and environmental protection for electronic assemblies
• Used alongside HumiSeal acrylic conformal coatings
• Repair and reinforcement of coated electronic assemblies

Compatibility & Safety Notes

• Apply only to clean, dry, contaminant-free substrates
• Compatible with automated needle dispensing and manual syringe application
• Can be used over no-clean flux following compatibility testing
• Flammable solvents-keep away from heat, sparks, and open flames
• Use only in well-ventilated areas and consult the Safety Data Sheet before use

Packaging & Procurement

• Supplied for manual syringe or automated dispensing applications
• Recommended stripper: HumiSeal Stripper 1080 / 1080EU
• Store between 0°C and 35°C in sealed containers
• Allow product to stabilise at room temperature for 24 hours before use

Why This Product is Chosen for Aerospace Electronics / MRO

• Provides excellent environmental protection for sensitive electronic assemblies
• UV fluorescence allows rapid inspection during manufacturing and repair
• Easy to repair and rework without replacing the entire conformal coating
• Excellent insulation resistance for high-reliability electronics
• Designed specifically to complement HumiSeal acrylic coating systems

Practical Suggestions for Your Team (AOG Mindset)

• Ensure PCB assemblies are completely clean and moisture-free before application
• Use automated dispensing for consistent bead size and placement
• Inspect cured gel under UV light to verify complete coverage
• Allow full cure before exposing assemblies to harsh operating environments

Manufacturer / Industry Spec Codes

• Product Name: HumiSeal® Acrylic Gel
• Product Type: Acrylic electronic sealing gel
• Application: PCB sealing, damming and environmental protection
• Compliance: RoHS, UL94 V-0, MIL-I-46058C