Techspray 2104 Data Sheet

Product Information

Fine-L-Kote™ UR

Urethane Conformal Coating

2104

Introduction

Chemical Components

Cure Type Thermal
Meets/Exceeds IPC-CC-830 MIL-I-46058C UR Urethane
Thermal Shock 3
Dielectric Constant (@ 106 Hz) 4.36
Dielectric Strength (Volts/Mill) 315
Volume Resistivity 2x10
Moisture Resistance 4
Resistant to Fungus Yes
Ease of Repair 3
Flexibility 3
Chemical Resistance 4
Dry Time to Touch 15 min.
Cure Time 24 Hours
Accelerated Cure Time 20 min. @ 120°F 30 min. @ 180°F Two Step Process
Removal (2510-P or 2510-N) 1-5 min.
Burn Through Yes

As a urethane conformal coating, Fine-L-Kote™ UR is highly resistant to most
solvents, moisture, fungus and molds. A clear, repairable coating, Fine-L-Kote™ UR
is formulated with a black light indicator, Opti/Scan™, to provide checks for
conformity in quality control. Coated boards can be reworked by applyi ng soldering
iron directly to coating, or complete removal can be achieved by using Trace
Technologies™ Conformal Coating Remover (2510-N, 2510-P).

Features / Benefits

Solvent Resistant
Recommended for Harsh Environments
Flexible
Contains Opti/Scan™

Propyl acetate…………………………………. (109-60-4) 25-30%-Aerosol
49-53%-Bulk
Urethane Prepolymer <10%-Aerosol
19-23%-Bulk
Cyclotetramethylene oxide…………………… (109-99-9) 15-20%
Aerosol-Tetrafluoroethane……………………. (811-97-2) 30-35%
Xylene…………………………………………... (1330-20-7) 9.28%-Aerosol
<20-24%-Bulk
Bulk-Ethyl Benzene…………………………… (100-41-4) <5-8%
Bulk-Optical Brightener <.1%

Ratings: 5 (Excellent), 4 (Very Good), 3 (Good), 2 (Fair), 1 (Poor)

13

Uncured Liquid Bulk Gardener Color 1 Solids (%) 40 Viscosity (cps) Bulk / HV 10-20 /

NCO Content (%) 2.9
Pounds/Gallon 8.1
Flash Point (°F) 81
Wet Film (40% solids, 3 mil thickness)* *All conditions of test at 50% R.H. and 72°F
Set to Touch (minutes) 10
Surface Dry (minutes 45
Hard Dry (hours) 4
Full Cure (hours) 12
Sward Hardness (1 day) 2
Cured Film
Mechanical Properties
Color of Film Clear
Sward Hardness 38
Taber Abrasion Loss (mg) (1000g load, 1000 cycles)
cs 10 wheel 18
cs 17 wheel 28
Tensile Strength (psi) 5,000
Elongation (%) (20 in/min. Instron) 85
Impact Resistance (pounds)
Direct 160
Reverse 140
Thermal Shock (Mil –I-46058C, UR) Passes
(-65°C - + 125°C for appearance – doesn’t crack)
Electrical Properties
Dielectric Strength (volts/mil) 380
Dielectric Constant (60 hz) 4.1
(10
Insulation Resistance (ohms) 1.5 x 10

Environmental Policy

Packaging and Availability

Typical Properties for 2104

150-250

6

hz) 3.8

12

Techspray® is committed to developing products to ensure a safer and cleaner
environment. We will continue to meet and sustain the regulations of all federal,
state and local government agencies.

Fine-L-Kote™ UR may be ordered in the following container sizes:
2104-12S 12 Ounce Aerosol

2104-P 1 Pint in Glass
2104-PHV 1 Pint in Glass
2104-G 1 Gallon in Metal
2104-GHV 1 Gallon in Metal
2104-5G 5 Gallons in Metal Pail