A dual-cure silicone material specifically developed for electrical insulation applications UL recognized, one part material, designed for manual and automated dispensing systems Fast processing and eliminates shadow area concerns with secondary moisture cure

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• A dual cure silicone material
specifically developed for electrical
insulation applications
• UL recognized, one part material,
designed for manual and automated
dispensing systems
• Fast processing and eliminates
shadow area concerns with secondary
moisture cure
1C63
Silicone

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• Designed to allow thick coating
applications of up to 250mils
(6.35mm)
• Engineered to cure to a clear
transparent finish for easy inspection
following processing
1C63
Silicone

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• Viscosity: 3500 +/- 1500 cps
• Specific gravity: 8.42 lbs./gal (1.04)
• Cure conditions: UV Irradiation = 1-5 J/cm2
• Secondary Cure: 24hrs@RT or 20 min @76oC
• Elongation: 100 %
• Tensile : 100 psi
• CTE: 3 x 10-4/oC
• Shore Hardness: 15 A
• Volume resistivity: 7.97 x 1014 ohms.cm
• Flammability, per UL94: V1
• TI 105oC
1C63
Performance

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• 1C63 viscosity is 3500 +/- 1500 cps
• Applies easily with standard equipment,
dipping, or brush.
Application1C63
Processing

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• 1C63 uses UV H bulb to cure.
Depending on thickness, 1-5 J/cm2 is
needed.
• 1C63 will not exotherm during cure
hence provides protection of any
sensitive components
• Any shadow areas will cure at room
temperature with ambient moisture
Cure1C63
Processing

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Benefits
Features
Feature Benefit
One part system Easy of Use
VOC Free No need for abatement equipment
Dual Cure UV and Moisture cure Systems
Reduced running cost versus conventional SB
systems
Allow for rapid processing and automation
Reduced WIP due to ability to ET post cure
Designed for complex circuit designs
UL746E for indoor and outdoor applications Broad device appeal
Does not produce corrosive cure by-products Compatible with sensitive metals on the board
Possesses application diversity
Better rounds out the available product
offering for users through high temperature
tolerance
Easy to Implement
Compatible with manual and automated
dispensing systems
Fluoresces under UV light Ease of Optical Inspection

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Applicable Standards & Specifications
– US MIL-I-46058C
– IPC-CC-830B
– UL - Underwriters Labs 746E
Electrical Properties
– Insulation resistance, dielectric constant
Thermal Properties
– Operating temperature range, thermal
expansion (CTE)
How To Select?Coating
Conformal

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Conformal Coating is a Simple Process
1. Clean
2. Masking
3. Coating Application
4. Dry / Cure
5. Remove Masking
• But if product is not processed correctly…Troubleshooting
Coating
Conformal

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• Poor surface cleanliness is most common
cause of coating problems
– Adhesion loss
– Electrical failures
– Coating voids
• IPC specifications recommend ionic
cleanliness level of < 1.5 g/cm2 NaCl
equivalence
Troubleshooting
Surface Cleanliness
Coating
Conformal

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• Need to keep within recommended ranges
• Too Thick
– Incomplete drying / solvent entrapment
– Bubbles
– Longer cure times
– Shrinking or cracking
– Decreased coating properties
• Too Thin
– Inadequate Protection!
Troubleshooting
Coating Thickness
Coating
Conformal