Chemtronics CTSR Data Sheet

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of Cured Coatings (-65°C to 200°C)

Tack Free Time 15 min.

Quick Cure 10 min. @RT followed by 10 min @ 80°C

(Water=1) @ 68°F

(ohm/cm)

-4

(Cal-cm/sec-cm2-ºC)

Expansion (in/in/°C)

(1 mil/ft2) CTSR-12 21.0

TDS # CTSR

CHEMTRONICS

Technical Data Sheet

Konform SR

PRODUCT DESCRIPTION

Konform SR provides maximum flexibility for extreme te mperatures. T his tr ansparent coating pr ovides ideal pr otection for both rigid a nd f lexible pr inted c ircuit boards. Cured coatings are hydrolytically stable a nd retain their phy sical e lectrical pr operties after high temperature and humidity



exposure. K onform

SR w ill not str ess

delicate circuit c omponents. Konform resin meets MIL-I-46058C, Type SR.

 Extends component life by protecting

against adverse environments

 Good insulation properties, excellent

flexibility

 Resists moisture, salt, fungus, corrosive

vapors, and severe environments

 Engineered to withstand heat generated

by electronic circuitry as well as climatic temperatures

 Contains a UV indicator for Quality

Control inspection using medium intensity light at 265-335 nm

 UL Recognized, File E76307  Compliant to IPC-CC-830A  RoHS compliant

TYPICAL APPLICATIONS



Konform

SR is ideal for applications in:

 Aerospace  Data Communications  Instrumentation  Automotive Manufacturing  Marine Manufacturing  Process Control



TYPICAL PRODUCT DATA AND PHYSICAL PROPERTIES

Usable Temp. Range (-85°F to 390°F)

Curing Conditions: Full Cure 24 Hours @ 77°F (25°C) (@ 80% R.H.) or 8 Hours @ 170° (77°C)

Specific Gravity 0.74 (Liquid only)

Viscosity (cps @ 77°F) 40 ± 5 cps

Flash Point (TCC) 60°F

Volume Resistivity 1.5 x 1016

Dielectric Breakdown (volts/mil) 1100

Thermal Conductivity 2.9 x 10

Coefficient of Thermal 2.1 x 10-4

Coverage CTSR-1 250.9

Shelflife 1 year from manufacture

Comparative Tracking Index (CTI) 225 V; PLC3

COMPATIBILITY

Konform SR is generally compatible with most materials f ound on printed ci rcuit boards. As with any chem ical product, product/com ponent compatibility m ust be determ ined on a non critical area prior to use.

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Performance

Moisture Resistance

Excellent

Removability

Excellent

Ease of Repair

Excellent

Flexibility

Excellent

Adhesion

Excellent

Abrasion Resistance

Fair

Solvent Resistance

Good

CFC

0.0%

VOC

88.0%

HCFC

0.0%

HFC

0.0%

Cl. Solv.

0.0%

ODP

0.00

USAGE INSTRUCTIONS

For industrial use only. Read MSDS carefully prior to use. Before applying Konform SR conformal coatings, clean circuit boards to remove contamination and allow to dry. Cleaning may be performed with Chemtronics Flux-Off products.

SPRAY APPLICATION: Apply top to bottom, allowing coating to flow evenly around components. Rotate PCB 90° 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 APPLICATIONS: Evenly apply coating to areas desired at thickness required. Allow time for curing before reapplying to achieve a thick coating. Use Chemask to protect components during conformal coating process. After application, cured Konform SR may be removed by soaking in Chemtronics Electro-Wash Two Step.

AVAILABILITY

CTSR-12 10 oz. Aerosol CTSR1 1 Gallon Liquid CTSR5 5 Gallon Liquid

ENVIRONMENTAL IMPACT DATA

(For Aerosol Product)

ENVIRONMENTAL IMPACT DATA

CFC, HCFC, C L. SOLV., V OC, a nd H FC num bers shown are the c ontent by w eight. O zone de pletion potential (ODP) i s d etermined i n acco rdance w ith the Montreal Protocol and U.S. C lean A ir A ct of

1990. The ODP of this product is 0.0. It is the sum of the ODP of the substances t hat may contribute to the depletion of s tratospheric oz one, based upon the weight of e ach s ubstance i n t he product’s formulation.

TECHNICAL & APPLICATION ASSISTANCE

Chemtronics provides a t echnical hot line t o answer your t echnical a nd a pplication related questions. The toll free number is: 1-800-TECH-401.

NOTE: This i nformation i s b elieved t o b e accurate. It

is intended for professional end users having the skills to evaluate and u se t he data pr operly. C HEMTRONICS does not guarantee t he accu racy of t he data and assu mes no liability in connection w ith da mages i ncurred w hile using it.

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