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HH-5039
Fluorescent semi-flow dual-cure acetoxy silicone, ultra-fast UV cure
Pot, coat and seal automotive, electronic, military & industrial components; fast skin bonding for PVC, glass, metal & ceramics, widely used for motor dynamic balancing processes.
Pale yellow
Color
Paste
Viscosity(mPa⋅s)
-40-200
Temperature(℃)
Description
SUITIT HH-5039 is single-component fluorescent semi-flowable acetoxy silicone with UV + atmospheric moisture dual curing system. It forms highly flexible elastomer with fast surface skinning and deep curing performance. The soft bond line absorbs shock and bears loads, delivering reliable adhesion to glass, metal, ceramic and various plastics for auto, electronic and industrial sealing assemblies.
Features
- Dual curing: Fast UV surface & deep cure + moisture secondary cure for shadow zones
- Fully compliant with EU RoHS environmental standards
- Superior resistance to water, oil and various chemical reagents
- High flexibility & toughness against vibration & thermal shock (-40℃~200℃)
- Outstanding primerless adhesion to glass, metal, ceramic and plastics
- Premium comprehensive electrical insulation performance
- Fluorescent formula enables quick inspection under UV light
- Semi-flow texture with high extrusion rate for automated dispensing
Specification
Uncured Properties
- Appearance: Pale yellow translucent semi-flow fluorescent paste
- Curing Type: Acetic acid release acetoxy silicone
- Fluorescence: Detectable under UV lamp
- Specific Gravity (25℃): 1.00–1.10
- Extrusion Rate (2bar, 5mm nozzle, 10s): 200–320g
- UV Cure Time (365nm, 100mW/cm²): 20–30 seconds
- Tack-Free Time (23℃, 50%RH): 10–20 minutes
Cured Properties (UV 60s + 7-day ambient moisture cure)
- Shore A Hardness: 35–45
- CTE above Tg: 324×10⁻⁶ K⁻¹
- Linear Shrinkage: 0.15%
- Water Absorption (24h RT): 0.28%
- Tensile Strength: >2.5 MPa
- Elongation at Break: >150%
- Shear Strength: Al/Glass ≥2.0 MPa, Carbon Steel/Glass ≥2.0 MPa, Glass/Glass ≥2.0 MPa
- Dielectric Strength: 20 KV/mm
- Dielectric Loss Tangent: 2.88
- Power Factor (1KHz): 8×10⁻³
- Volume Resistivity: 1.0×10¹⁵ Ω·cm
Storage & Packaging
- Storage Condition: Sealed original packaging, stored ≤25℃
- Shelf Life: 6 months from production date
- Standard Sizes: 30ml, 50ml, 300ml cartridges, 20kg drum
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