Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Features and Benefits
• Low VOC solvent-borne resin coating
• Cures to a tough, elastoplastic, resilient, abrasion resistant surface
• Exceptional dirt, dust, and soil repellency -- surfaces remain clean longer
• Extends component life by protecting against adverse environments, with exceptional resistance to moisture, salt, fungus, corrosive vapors, and severe environments
• Outstanding insulation properties help with circuit insulation characteristics
• Excellent flexibility minimizes and absorbs thermal and mechanical stress
• Engineered to withstand heat generated by electronic circuitry as well as climatic temperature extremes
• Superior transparency
• Room temperature cure, no ovens required
• Optional mild heat acceleration (after solvent flash-off) can speed in-line processing
• UV indicator allows for manual or automated inspection
• UL 94 V-0 flammability rating
Applications & Uses
- Markets
- Applications
- Application Method
- Cure Method
- Applications
• Data Communications
• Instrumentation
• Automotive Manufacturing
• Marine Manufacturing
• Process Control- Usage Instructions
Application Methods:
• Spray
• Dip
• Brush
• Flow
• Automated pattern coating
Spray Application: Apply top to bottom, allowing coating to flow evenly around components. Rotate PCB 90º and repeat application. Rotate and apply coating two additional times, then allow board to cure. If additional thickness is desired, apply additional coatings. When using liquid spray with automatic dispensing equipment, adjustments may be required in application rate and viscosity.
Dip Application: Using automatic equipment or hand immersion technique, slowly immerse PCB into the coating and remove slowly. Use an average rate of approximately 1 foot per minute. After allowing the board to cure, process may be repeated to achieve desired thickness.
Brush Application: Evenly apply coating to areas desired at thickness required. Allow time for curing before reapplying to achieve a thick coating. Use WonderMASK to protect components during conformal coating process. After application, cured Fine-L-KoteTM may be removed using Techspray Conformal Coating Removal Pen (2510-N or 2510-P).- Repairability
When assembling PCB’s, it may be necessary to rework or repair damaged boards. Fine-L-Kote™ SRV has good reparability because it can be removed by scraping or cutting, or by using solvents or stripping agents. To replace one component, the coating can be burnt through by applying a soldering iron on the coated solder joint. Use proper ventilation / fume extraction. After repair is complete, clean area using a Techspray solvent cleaner, allow to dry, and then recoat.
Properties
- Physical Form
- Insoluble in
- Water
- Physical Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Flash Point (Closed Cup) | 10ºF (-12.2ºC) | — | — |
| UV Indicator | Yes | — | — |
| Value | Units | Test Method / Conditions | |
| Tack-Free Time (Accelerated RH, 140°F / 60°C, 33%) | 10.0 | minutes | — |
| Tack-Free Time (Ambient) | 30.0 | minutes | — |
| Full Cure† Time (Accelerated, 2 Step, 90°F / 32°C Then) | 30 Min | minutes | — |
| Full Cure† Time (Accelerated, 2 Step,199°F / 93°C) | 100.0 | minutes | — |
| Full Cure† Time (Ambient , 77ºF / 25ºC, 30-60% RH) | 24.0 | Hrs | — |
| Operating Temperature Range* | -60 to 200 | °C | — |
| Hardness | 90.0 | shore A | — |
| Hardness | 88.0 | Shore D | — |
| Dielectric Strength* | min. 720 | volts/mil | — |
| Dielectric Strength* | min. 28 | kV/mm | — |
| Volume Resistivity* | min. 1.4 x 10¹² | ohm – cm | — |
| Dielectric Constant (100 hz*) | 3.75 | — | — |
| Dielectric Constant (100 kHz*) | 3.85 | — | ASTM D150 |
| Dissipation Factor (100 hz*) | 1.017 | — | — |
| 100 Hz to 100 kHz (100 kHz*) | 0.719 | — | ASTM D150 |
Regulatory & Compliance
- Certifications & Compliance
Technical Details & Test Data
- Specifications
• IPC-CC-830B
• UL94 flammability rating V-0
• MIL-STD 810G salt spray test
• MS941-04 salt spray test- Viscosity
Fine-L-Kote SRV – Standard Viscosity
Coverage (1 mil dry film) 723 ft2 per gallonViscosity (cP) 82 +/-20 Specific gravity (water = 1) @68ºF 0.85 Solids / NVC (%) 45 +/-5 VOCCarb – 25.2% SCAQMD – 415 g/LFederal – 13.2% MIR – 0.16 Fine-L-Kote SRV 950 – High Viscosity
Coverage (1 mil dry film) 1285 ft2 per gallonViscosity (cP) 950 +/-100 Specific gravity (water = 1) @68ºF 0.95 Solids / NVC (%) 85 +/-5 VOCCarb – 4.7% SCAQMD – 152 g/LFederal – 3.8% MIR – 0.04 - Processing / Curing
Time to reach a tack-free state can be accelerated with heat. Allow time for the solvent to evaporate before increasing temperatures in an oven. If coating blisters or bubbles, increase time at room temperature for the solvent to flash off before placing PCB into the oven.
- Adhesion
Fine-L-Kote SRV is formulated to provide adhesion to most common PCB and component materials. Before applying Fine-L-KoteTM conformal coatings, clean circuit boards to remove contamination and allow dry. Cleaning may be performed with Techspray G3, E-LINETM and Precision-V flux removers.
Safety & Health
- Environmental Data
CFC 0.00% HCFC 0.00% Cl. Solv. 0.00% HFC 0.00% ODP 0 CFC, HCFC, CL. SOLV., and HFC numbers shown are the content by weight. Ozone depletion potential (ODP) is determined in accordance with the Montreal Protocol and U.S. Clean Air Act of 1990. The ODP of this product is 0.0. It is the sum of the ODP of the substances that may contribute to the depletion of stratospheric ozone, based upon the weight of each substance in the product’s formulation.
Environmental Policy
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.
Packaging & Availability
- Packaging and Availability
Fine-L-Kote SRV – Standard Viscosity 2127-P 1 pint / 0.47L liquid2127-G 1 gallon / 3.8L liquid2127-5G 5 gallon / 18.9L liquid2127-54G 54 gallon / 204L liquidFine-L-Kote SRV 950 – High Viscosity 2127-P950 1 pint / 0.47L liquid2127-G950 1 gallon / 3.8L liquid2127-5G950 5 gallon / 18.9L liquid2127-54G950 54 gallon / 204L liquid
Storage & Handling
- Shelf Life
- 9 months. From Production Date
- Pot Life and Cure Rate
The pot life Fine-L-Kote SRV depends on the application method. To extend pot life, reduce exposure to moisture by using dry air or dry nitrogen blanketing.