MAX MCR A/B

POTTING RESIN FOR ELECTRONIC CIRCUIT BOARDS

1 Quart Of MAX MCR PART A Resin 

And

1 Pint Of MAX MCR PART B Curing Agent

48 Fluid Ounces

Or

86 Cubic Inches Combined Volume
RoHS & REACH Conflict Minerals Compliant
 Electrical Insulating And Potting Of Electronic Circuitry
Permanent Opaque Black Masking Compound For Proprietary Electronics
Electrical Potting Compound
Embedding Or Masking Compound
Waterproof Encapsulant, Continuous Water Immersion
Electrical Insulating And Potting Of Electronic Circuitry
Permanent Opaque Black Masking Compound For Proprietary Electronics
Up to 500 Volts Per Mil Thickness
PRODUCT DESCRIPTION
MAX MCR A/B is an epoxy-based, medium working time, low viscosity potting compound resin system used for potting or encapsulating printed circuit boards (PCB), mechanical relays, induction coils, and other electronic or electrical circuitry. MAX MCR A/B is low in viscosity and self-levels as it cures at room temperature. It is mixed 2:1 by weight or by volume and provides a 30 minute working time (200-gram mass @ 75°F).

Upon cure, MAX MCR is none electrically conductive that seals and waterproofs open circuitry and provides permanent masking for custom and proprietary circuitry and electronic components. It cures to a hard but tough opaque black compound suitable for small to medium parts without excessive exothermic heat generation up to 1 pint or 500 ml of volume.


MAX MCR A/B bonds to PVC, PP, ABS, Plastisol, aluminum, steel, copper, brass, and other materials typically used in electrical circuits. 

MAX MCR A/B is mixed 2:1 by weight or by volume ratio. The mixed consistency is similar to mineral oil easily poured or injected in place.


MAX MCR A/B is suitable for automated mix meter dispensing for high volume production lines. MAX MCR A/B can also be utilized for other applications, such as a black casting resin for parts fabrication, opaque black impregnating resin for fiberglass, and for gluing applications. It bonds very well to wood, metal, concrete, and other composite and plastic substrates.

Physical Properties
And
Cured Mechanical Properties

Form And Color

Black Liquid, Self-Leveling

Viscosity Part A

2,500 cPs @75°F

Viscosity Part B

750 cPs @75°F

Mixed Viscosity

1,950 cPs @75°F

Mix Ratio

2:1 (50 PHR)

Mixed Density

1.10 g/cc

Working Time

30 minutes (400-gram mass)

Gel Time

60 minutes  @ 75°F

Peak Exotherm

280°F max (400-grams)

Handle Time

24 Hours @ 75°F

Full Cure

36 Hours @ 75°F

Accelerated Cure

2 Hours @ 75°F+90 minutes @200°F

Shore Hardness

75 Shore D

Shrinkage:

<0.30 %

Compressive Strength

13,800 psi  @75°F

Tensile Strength

9,900 psi  @75°F

Tensile Elongation

4% @75°F

Heat Distortion Temperature

190°F

Electrical And Thermal Properties @ 75°F

Volume Resistivity

4.7 X 1013 Ohms-Cm

Dielectric Strength

510 Volts/Mil 60 Cycles

Dielectric Constant

4.0 (10 kHz)

Dissipation Factor

0.014 (10 kHz)

Thermal Conductivity (Unfilled) 40°-45°C

0.25 W F/mK

Chemical Resistance Properties
Immersion @ 75°F Measured Percent Change In Weight

Reagent

10 days

28 Days

Deionized Water

0.03 %

0.03 %

Sea Water

0.01 %

0.08 %

Methanol

0.93 %

2.41 %

Ethanol

1.98 %

1.28 %

Toluene

0.40 %

2.86 %

Xylene

0.04 %

0.05 %

Gasoline (E85 Blend)

0.10 %

0.23 %

Dimethyl Formamide

Destroyed

Destroyed

10% Lactic Acid

0.81 %

1.42 %

10% Acetic Acid

0.11 %

0.45 %

70% Sulfuric Acid

0.08 %

0.14 %

50% Sodium Hydroxide

0 %

0.1 0%

10% Sodium Hypochlorite

0.51 %

0.96 %

 MAX MCR A/B Available Kit Sizes
48-Fluid Ounce Combined Volume:https://www.ebay.com/itm/223885745256
96-Fluid Ounce Combined Volume:https://www.ebay.com/itm/311946513165
192-Fluid Ounce Combined Volume:https://www.ebay.com/itm/311960933510

No Potting Box PCB Encapsulation Using Silicone Mold And MAX MCR A/B





Underwater LED Lights

Use Our MAX CLR A/B For Clear Casting And LED Encapsulation

https://www.ebay.com/itm/311947320101




 LED Lighting For Boat Safety Marker And Fish Attracting



High-Pressure Sensors Potted With MAX MCR A/B


24 Volt Solenoid Valve Potted With MAX MCR A/B

Tested To >2,000,000 Cyclic On/off Test With No Failure

  

.

 

Circuit Board Potting With MAX MCR A/B

Waterproofing Of An Electrical Circuitry

Click The Picture To View The Video

MAX MCR A/B POTTING AND ENCAPSULATION

 


EPOXY RESIN MIXING AND USAGE APPLICATIONS
RESIN CRYSTALLIZATION FROM PROLONGED STORAGE
OR
COLD WEATHER EXPOSURE
Due to its high purity formulation, the resin component or PART A may crystallize due to cold temperature exposure, especially after prolonged storage.
 Inspect the resin component for any solidified crystals which will as solid solid mass or grainy solids that collects at bottom of the PART A bottle. View the following video for heat processing the bottle before use.
Do Not Use Unless Processed To Revert Any Crystallized Resin Back To A Liquid State And Avoid Poor Cured Results.

MAX MCR PART A is opaque black, which makes it difficult to see signs of resin crystallization. 

Heat process the bottle before use, especially after storage.

The use of a weighing scale is highly recommended for measuring the 2:1 mix ratio. Using volumetric measuring is fine, however, weighing the resin and curing agent yields the best cured mechanical properties, batch repeatability, and less waste from mixing over-sized batch.
Use this digital scale to precisely weigh the resin and curing agent and ensure full polymerization of the resin and curing agent and prevent leaching.

EPOXY RESIN MIXING AND THICK CASTING TROUBLE-FREE TECHNIQUE MAX MCR A/B RESIN SYSTEM - YouTube

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Please view the following video for the proper mixing of epoxy resins.
It demonstrates the proper technique of mixing any type of epoxy resin.

EVIDENCE OF POOR MIXING


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The proper cure and final performance of any epoxy resin system are highly dependent on the quality and thoroughness of the mix.
The resin and curing agent must be mixed to a homogeneous consistency.

MIXING TECHNIQUE

How To Mix Epoxy Resin For Food Contact Coating. Avoid Tacky Spots, Minimize Air Bubble When Mixing - YouTube

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IMPORTANT NOTICE

Your purchase constitutes the acceptance of this disclaimer. Please review before purchasing this product.

The user should thoroughly test any proposed use of this product and independently conclude the satisfactory performance in the application. Likewise, if the manner in which this product is used requires government approval or clearance, the user must obtain said approval.The information contained herein is based on data believed to be accurate at the time of publication. Data and parameters cited have been obtained through published information, PolymerProducts and  Polymer Composites Inc. laboratories using materials under controlled conditions. Data of this type should not be used for a specification for fabrication and design. It is the user's responsibility to determine this Composites fitness for use.

There is no warranty of merchantability for fitness of use, nor any other express implied warranty. The user's exclusive remedy and the manufacturer's liability are limited to refund of the purchase price or replacement of the product within the agreed warranty period. PolymerProducts and its direct representative will not be liable for incidental or consequential damages of any kind. Determination of the suitability of any kind of information or product for the use contemplated by the user, the manner of that use and whether there is any infringement of patents is the sole liability of the user.