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What is a Conformal Coating?

A conformal coating is a thin protective polymer layer that is typically applied on top of printed circuit boards (PCBs) and/or other electronic components to protect against particles, moisture, gases, and other potentially contaminating or corroding material.

 

Silicone Conformal Coatings Solutions

Momentive’s ECC3011 and ECC3051S silicone conformal coating materials employ a distinct formulation that helps prevent the occurrence of corrosion on vital PCB components and surfaces. 

These coating materials have been shown to dispel the commonly held perception that silicones, due to their higher gas permeability, are at a disadvantage in corrosion prevention. In corrosion tests performed by Momentive in accordance with IEC standards, Momentive’s new silicone formulations out-performed a select group of conformal coating materials,  including acrylics, polyurethane, polyolefin and competitor silicone formulations. 

 

Key Features and Typical Benefits:

  • Fast tack-free time
  • Solvent-free formulation (100% solid content)
  • UV indicator for ease of inspection under black light
  • Continuous operating temperature range of -40 ~ 150 °C

 

Applicable Standards

  • Flame Retardant: UL94V-0 certified (File No. E135148)
  • Salt spray performance tested in accordance with IEC60068-2-52 Severity 5 
  • Tested in accordance with IPC-CC-830B / MIL-I-46058C  

 

This conformal coating overview shows how Momentive's conformal coating solutions can withstand critical elements.

                                 Momentive Silicone Conformal Coating Overview from Momentive Performance Materials


 

Typical Physical Properties 

 Typical Physical Properties

ECC3011

ECC3051S

Type 

Room Temperature Cure 

Room Temperature Cure 

Components 

1 Part 

1 Part 

Color 

Clear 

Clear 

Viscosity (Pas) 

0.11 

0.55 

Solid Content 

100 % 

100 % 

Solvents 

None 

None 

Tack Free Time at 23 °C (min) 

3 (at 100um) 

5 (at 100um) 

Cure Time (min) 

10 (at 23 °C) 

30 (at 23 °C) 

Hardness (Type A) 

35 

22 

UL Flammability 

V-0 

V-0 

Salt Spray Corrosion Test Result

Good 

Good 

Mixed Gas Corrosion Test Result2

Good 

Good 

IPC—CC-830B Test Status 

Good 

Good 

1*IEC60068-2-52 Severity 5 
2**IEC60068-2-60 Method 4   
Typical properties are average data and are not to be used as or to develop product specifications.

 

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* Silplusは、新日鉄住金化学株式会社の商標であり、許可を得て使用しています。

*The marks followed by an asterisk (*) are trademarks of Momentive Performance Materials Inc.