Urethanes

Urethane Conformal Coatings

Polyurethane coatings are available in either single or two-component formulations. Both options provide excellent humidity resistance and far greater chemical resistance than acrylic coatings. Single component polyurethanes, while easy-to-apply and enjoy long pot life, sometimes require long curing regiments to achieve a full or optimum cure. In some instances, the cure cycle can be accelerated with the application of heat. Two-component formulations can reach optimum cure properties in as little as one to three hours with the assistance of heat.

Urethane Conformal Coating Performance

Urethane Conformal Coating Performance

Removing a polyurethane coating can be difficult due to its a very high resistance to solvents. For single-component urethanes, the preferred method of removal is by using a burn through (solder iron or other) technique. Specially formulated strippers could also to completely remove the coating from an entire PCB assembly for more wide-ranging rework. These products do not necessarily represent our complete urethane range. For more information on our urethane products please click here or contact a HumiSeal representative by clicking here.

HumiSeal® 1A20

A single component, chemically resistant, fast curing polyurethane conformal coating.  Fluoresces under UV light for ease of inspection, MIL-I-46058C qualified, IPC-CC-830 and RoHS Directive 2002/95/EC compliant and recognized under UL File Number E105698.

  • Unique Features: Relatively High Solids, 60 Minutes to Tack Free Handling

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HumiSeal® 1A20R

A single component, chemically resistant, fast curing polyurethane conformal coating. Fluoresces under UV light for ease of inspection, MIL-I-46058C qualified, IPC-CC-830 and RoHS directive 2015/863/EU

  • Unique features:
  • Better stability and longer shelf life

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HumiSeal® 1A27

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

  • Unique Features: Relatively High Solids, Higher Viscosity Suitable for Dipping Applications

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HumiSeal® 1A27 LTX

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

  • Unique Features: Relatively High Solids, Higher Viscosity Suitable for Dipping Applications

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HumiSeal® 1A33 

A single component, polyurethane conformal coating, suitable for general printed circuit board applications. Contains no free isocyanates and fluoresces under UV light for inspection purposes. MIL-I-46058C qualified, IPC-CC-830B and RoHS Directive 2011/65/EC compliant and recognized under UL File Number E105698.

  • Unique Features: Popular Product, fast 15 Minutes to Tack Free Handling
  • Available in Aerosol Can Form.

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HumiSeal® 1A33 LTX & Pre-blended Products

Polyurethane conformal coating, single component, suitable for general printed circuit board applications.

  • Unique Features: Popular Product, fast 15 Minutes to Tack Free Handling
  • Available in Aerosol Can Form.

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HumiSeal® 1A33 LOS

Is a single component, polyurethane conformal coating, suitable for general printed circuit board applications.

  • suitable for general PCB applications
  • RoHS directive 2015/863/EU
  • China RoHS 2

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HumiSeal® 1A33 LOF & PB65

is a single component, polyurethane conformal coating, suitable for general printed circuit board applications.

The formula of 1A33 LOF contains curing accelerants which significantly reduce curing times compared with other polyurethane coatings. High levels of chemical resistance and physical hardness can be achieved after 4 hours at 85˚C.

  • specially formulated using reduced odour and low toxicity solvent, making it ideal for use in many situations.

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HumiSeal® 1A34

A single component, fast curing polyurethane conformal coating. Easy application and handling and fluoresces under UV light for ease of inspection. MIL-I-46058C qualified, IPC-CC-830 and RoHS Directive 2002/95/EC compliant.

  • Unique Features: Longer 120 Minutes to Tack Free Handling

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HumiSeal® 2A64

Two-part component polyurethane conformal coating supplied as Parts A and B, suitable for general printed circuit board applications. High solids and low viscosity for ease of application and processing, and it fluoresces under UV light for inspection purposes. MIL-I-46058C qualified, and IPC-CC-830 and RoHS Directive 2011/65/EC compliant.

  • Unique Features: Relatively High Solids, fast 15 Minutes to Tack Free Handling.

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HumiSeal® 1A65

A single component, polyurethane conformal coating, suitable for general printed circuit board applications. Contains no free isocyanates and fluoresces under UV light for inspection purposes. MIL-I-46058C qualified, IPC-CC-830B and RoHS Directive 2011/65/EC compliant and recognized under UL File Number E105698.

For more information about this product, please contact customer service at sales@humiseal.com

HumiSeal® 1A67

A single component, polyurethane conformal coating, suitable for general printed circuit board applications. Contains no free isocyanates and fluoresces under UV light for inspection purposes. MIL-I-46058C qualified, IPC-CC-830B and RoHS Directive 2011/65/EC compliant and recognized under UL File Number E105698.

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