1. Home/
  2. Products/
  3. Conformal Coatings/
  4. Urethanes and Polyurethanes/
  5. HumiSeal 1A27 Conformal Coating

Memberships & Certifications

Image alt
Image alt
Image alt
Image alt
Image alt
Image alt

A Global Leader

Chase Corporation is a global specialty chemicals company that is a leading manufacturer of protective materials for high-reliability applications across diverse market sectors.

LinkedinYouTube

© Copyright 2026 Chase Corp. All Rights Reserved.

Links
  • Brands
  • Markets
  • Support
  • About Us
  • Careers
  • Legal
  • Do Not Sell or Share My Personal Information
  • Cookie Settings
Privacy Disclosures
  • Accessibility Statement
  • Privacy Policy

© Copyright 2026 Chase Corp. All Rights Reserved.

HumiSeal

HumiSeal 1A27 Conformal Coating

HUM 1A27
HumiSeal

HumiSeal 1A27 Conformal Coating

HUM 1A27

HumiSeal® 1A27 is a single component, polyurethane conformal coating, suitable for general printed circuit board applications. HumiSeal® 1A27 contains no free isocyanates. HumiSeal® 1A27 coating is RoHS Directive 2002/95/EC compliant and recognized under UL File Number E105698.

Overview

HumiSeal® 1A27 is a single component, polyurethane conformal coating, suitable for general printed circuit board applications. HumiSeal® 1A27 contains no free isocyanates. HumiSeal® 1A27 coating is RoHS Directive 2002/95/EC compliant and recognized under UL File Number E105698.

View SpecificationsFind SDSRequest SampleDownload TDS

Have a Question and Need to Speak to an Expert?

Our experts are ready to answer your questions!

Contact Us
Chase corp logo
Contact Us
  • Chase Global Operations Center and Corporate Headquarters
  • 375 University Ave.
    Westwood, MA 02090
  • Corp Offices: (+1) 781-332-0700
  • Corp Fax: (+1) 781-332-0701
  • Customer Service: (+1) 781-332-0707

  • Overview / Specs
  • Downloads
  • Related products

HumiSeal® 1A27 is a single component, polyurethane conformal coating, suitable for general printed circuit board applications. HumiSeal® 1A27 contains no free isocyanates. HumiSeal® 1A27 coating is RoHS Directive 2002/95/EC compliant and recognized under UL File Number E105698.

Overview

HumiSeal® 1A27 is a single component, polyurethane conformal coating, suitable for general printed circuit board applications. HumiSeal® 1A27 contains no free isocyanates. HumiSeal® 1A27 coating is RoHS Directive 2002/95/EC compliant and recognized under UL File Number E105698.

Specifications

ChemistryPolyurethane
Curing ConditionsAir
Material30 days at RT / 30 hours @ 76°C / 20 hours @ 88°C
Recommended Thickness25-75 microns
Volatile Organic Compounds480 g/l
Cure Time30 days at RT / 30 hours @ 76°C / 20 hours @ 88°C

Downloads

  • HUM 1A27 Technical Data Sheet

    PDFDownload
  • HumiSeal RoHS Certificate Urethane Conformal Coatings

    PDFDownload
  • HumiSeal REACH Statement

    PDFDownload

Related products

Feature Image
HumiSealHumiSeal® 1A27 Aerosol Spray Conformal Coating1A27 Aerosol Conformal Coating

Fast-drying clear urethane coating for PCBs; aerosol dispensed

Contact Us for Price
View options
Feature Image
HumiSealHumiSeal 2A64 Conformal CoatingHUM 2A64

HumiSeal® 2A64 is a two component polyurethane conformal coating supplied as Parts A and B, suitable for general printed circuit board applications.

Contact Us for Price
View options
Feature Image
HumiSealHumiSeal 1C51 Silicone Conformal CoatingHumiSeal 1C51 Silicone Conformal Coating

HumiSeal® 1C51 is a single component, VOC-free, fast thermal curing silicone conformal coating.

Contact Us for Price
View options
Feature Image
Contact Us for Price
Feature Image
HumiSealHumiSeal UV40-250 Conformal CoatingHumiSeal UV40-250 Conformal Coating

Single component, high solids, UV curable, acrylated polyurethane conformal coating

Contact Us for Price
View options
Feature Image
HumiSealHumiSeal® 1A33 Urethane Conformal Coating1A33 Urethane Conformal Coating

1K polyurethane conformal coating for general PCB protection.

Contact Us for Price
View options