DESCRIPTION:

50-2366 FR is a new thermally conductive polyurethane potting compound. This flexible system is designed for low stress on sensitive components during and after cure. 50-2366 FR polyurethane resin system is formulated for applications requiring low exotherm, low shrinkage, and excellent electrical properties.

This system is a good choice for potting applications containing surface mount components or any application requiring low stress, thermal conductivity and flame retardancy. 50-2366 FR is suitable for outdoor use.

50-2366 FR meets the stringent requirements of UL 94V0 flame out test.

FEATURES:

• Low viscosity
• Low stress on sensitive components
• Excellent electrical insulation
• Excellent water resistance
• Low shrinkage
• Thermal shock resistance
• Thermally conductive
• Flame retardant

TYPICAL SPECIFICATIONS:

• Standard Color - Black
• Viscosity, CPS

• Part A Polyol - 17,000
• Part B Isocyanate - 150
• Specific Gravity, 25°C

• Part A Polyol - 1.56
• Part B Isocyanate - 1.21
• Hardness, Shore D - 65
• Tensile strength, Psi - 2,200
• Elongation, % - 35
• Thermal Shock, - ^-65°C to + 130°C Passes
• Linear shrinkage, % - 0.5
• Linear Thermal Expansion, in/in/°C - 16.2 x 10^-5
• Thermal conductivity, BTU/hr/ft²/°F/in - 8
• Water Absorption, %

• 24 hours immersion - 0.074
• 7 days immersion - 0.18
• Fungus Resistant - Non – Nutrient
• Dielectric constant, 100 HZ - 4.3
• Dielectric Strength, Volts/mil - 540
• Volume Resistivity, ohm-cm - 2.1 x 10¹⁴
• Surface Resistivity, ohms - 6.0 x 10¹⁷
• Operating temperature range, °C - -65 to + 135°C

INSTRUCTIONS FOR USE:

1) Agitate Part A thoroughly to re-disperse fillers. Some settling during transit or storage is common.

2) By weight mix 100 parts 50-2366 FR Part A to 20 parts Part B. By volume 100 Parts A to 26 Parts B. Avoid using paper cups & wooden stirrers. Use glass or metal containers and stirrers.

3) Pour and cure according to one of the following schedules:

A. 25°C - 24 hours

B. 60°C - 2 hours

C. 100°C - 20-30 minutes

STORAGE & HANDLING:

50-2366 FR should be stored at 65 – 85°F in original tightly sealed containers. If containers are opened and the contents partially used, the material left in the container should be blanketed with dry nitrogen before sealing. Expected shelf life is 12 months in original unopened containers.

50-2366 FR does not contain TDI or MOCA. It also has a low vapor pressure which greatly reduces the vapor hazard and toxicity associated with other commercially available urethanes.

Please read MSDS before using this or any other chemical.

IMPORTANT:

The information in this brochure is based on data obtained by our own research and is considered accurate. However, no warranty is expressed or implied regarding the accuracy of these data, the results to be obtained from the use thereof, or that any such use will not infringe any patent. This information is furnished upon the condition that the person receiving it shall make his own tests to determine the suitability thereof for his particular purpose.

06/03

All-rounder

The A300 stands for optimised preparation and delivery of different materials, like silicone, epoxy or polyurethane resins.

Protection against outside influences

By vacuum the A300 protects the material

hermetically against air or humidity and furnishes thus the ideal condition for bubble free casting.

No failures by accumulation

Due to the circulation of the material, also when the production is stopped,

a sedimentation of particulate material can be reliable avoided.

Scheugenpflug has got the appropriate means of feeding resins for every requirement and has a rich treasure of experience at its command, to decide securely which way will do best in a certain case.

APL, Inc uses the science of rheology for Medical Device Testing and Polyurethane material with the purpose of accurately modeling the melt flow of the materials being tested. Compliance is crucial to how your product will work specifically. This ensures that your final product will meet your specified FDA compliance requirements.

RHEOLOGY

• The study of deformation and flow. In other words, the study of the flow of materials that behave in an interesting or unusual manner. Examples of normal, familiar flow of materials would be, oil, water, air. Sir Isaac Newton, studied these materials and created laws of physics that explain why they behave and flow in a predictable way.

• Other materials behave in interesting or unusual ways. Examples of paint, foams, melt plastics, and other fluids behave in a different variety of ways. These materials do not fall into the Newtonian flow laws. The science of studying these types of unusual materials is called rheology. The scientists who study the mathematical relationships that describe the behavior of these unusual fluids are called Rheologists.

Associated Polymer Labs, Inc. incorporates this science of rheology for the purpose of accurately defining the melt flow of the materials being tested. This gives a more accurate, definable way to follow behavior of newly discovered and complex polymers and synthetic rubbers. When assisting a client, this type of testing would be crucial to define the temperature of manufacturing a certain polymer and cooling temperature and time to keep the integrity of the plastic/resins that is being used.

• If a material is being used in a medical application, certain specifications to keep the product certified are required. Manufacturing processes are crucial to keeping the integrity of the product.

• Associated Polymer Labs, Inc. uses RHEOLOGY and product knowledge to help clients keep within these guidelines, to make a superior product, with minimum waste, and low downtime. This can save the company time, money, and legal obligations from making a faulty product.

EXAMPLE:

• A medical device company inquired why they were having problems injection molding their catheter tips. They were having many problems with bubbles, voids and overall performance problems.

• APL tested and evaluated these catheter tips. APL was able to pinpoint the cause of the problems. The company then had the tools to locate the specific changes that needed to be made with the compounder and the manufacturing department. APL was able to identify the root cause of the problem and make corrections before product launch. Associated Polymer Labs, Inc. was able to save this medical company millions of dollars in failed product, and manufacturing time. APL now tests and certifies every lot from their compounder. The process was streamlined which now produces great income for this company.

APL CAN HELP YOU FIND YOUR ANSWERS. ASK US HOW!

20-2353 is a low durometer (Shore A 50) potting, casting, and encapsulating compound. This two part system is engineered to provide low stress on electronic components and to resist moisture. 20-2353 provides excellent hydrolytic stability, low moisture permeability, a low glass transition temperature, and low stress on sensitive components.

20-2353 maintains its integrity over a wide operating temperature range, -40°C to +125°C. It's low glass transition temperature, -72°C, makes this system ideal for low temperature potting applications.

Benefits:

• Will not stress sensitive components
• Excellent electrical insulation
• Maintains flexibility at low temperatures
• No shrinkage
• Hydrolytic stability
• Low viscosity allows quick self leveling

Typical Specifications:
Color - Black
Specific gravity, @ 25°C
Resin - .9
Catalyst - 1.2
Mix ratio, by weight (R:C) - 100:12
Mix ratio, by volume (R:C) - 100:9
Hardness, Shore A - 50
Pot life, 100 gram mass, 25°C - 2 hours
Viscosity, 25°C, CPS
Resin - 4,000
Catalyst - 175
Mixed - 3,500
Coefficient of thermal expansion, per °C - 2.28 x 10^-4Tensile strength, psi - 150
Elongation, % - 60
Glass transition temperature - -72
Dielectric constant, 25°C, 1 KHz - 4.5
Surface resistivity, 25°C, ohm - 1 x 10¹⁶
Volume resistivity, ohm-cm - 6 x 10¹⁶
Operating temperature range, °C - -40 to +125

Instructions for Use:
1) By weight, thoroughly mix 12 parts 20-2353C Catalyst to 100 parts 20-2353R Resin. By volume, mix 9 parts 20-2353C Catalyst to 100 parts 20-2353R Resin. Two components should be carefully weighed in metal, plastic, or glass containers. Avoid using paper cups and wooden stirrers.
2) Mixed material can be degassed at 1 to 5 mm Hg to ensure bubble free castings. Containers should be large enough to allow frothing.
3) Cure according to one of the following cure schedules:
25°C 24 Hours
65°C 2 Hours
80°C 60 Minutes

Storage and Handling and Safety: Store both components at 75-85F in original containers. If the containers are opened and the contents partially used, the material left in the container should be blanketed with dry nitrogen before sealing. Carefully read Material Safety Data Sheets before using.

Scratch, scuff and weather resistant, domed labels can be used indoors or out and will not yellow or weather.

The digital print process under the dome provides crisp clear printing and without expensive plate and die charges. 3-D domed labels available in any size / any shape. Available with permanent adhesive or magnet backing.

Ideal for applications where an impact is needed.

Features:

• Terminals are No. 10-32 screws with one lockwasher & flatwasher.
• The core and coil assembly is encased in a plastic enclosure and vacuum encapsulated in polyurethane resin.
• Thermal burden rating is for 120 volt secondaries.
• 50 Hz designs are available.
• Indoor type
• The transformers are tested for partial discharge to Canadian Standards CAN 3-C13-M83. This test can also be carried out to IEC requirements if requested.
• Fuses have 1" Dia. Caps and 5" clip centers.
• Approximate weight 24lbs.

Specifications:
Accuracy Class: 0.3 WX, 0.6MY, 1.2Z at 100% rated voltage with 120V based ANSI burden. 0.6 WX 1.2 MY at 58% rated voltage with 69.3V based ANSI burden.
Frequency: 60Hz
Insulation Class: 5.6kV
Basic Impulse Level: 45kV BIL
Thermal Rating: 600VA at 35 degrees C Amb.; 400VA at 55 degrees C Amb.