Nicoat

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1600 Glenlake Avenue
Itasca, IL 60143
Phone: 888-860-7070
Phone: 630-860-7070
Fax: 630-860-7172

Technical Bulletins

These Technical Buletins are made available to assist printers as they face the everyday challenges of the industry.

Nicoat representatives are experts in coating chemistry and processes.

 

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Contact the Nicoat Technical Service Department at 888-860-7070 or

 

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For assistance with a particular project, Nicoat can recommend a custom coating that meets your standards for performance, VOC content and cost.

For specific questions or topics email or call us at (888)860-7070 or (630)860-7070 outside the U.S.

UV Troubleshooting Guide

Do I need to mix UV coating?

-- Nicoat recommends mixing all coatings (UV and Aqueous) prior to use to insure that the coating is uniform prior to application

Can I coat with either a Dull or Satin UV coating and then spot coat Gloss UV on top?

--To accomplish this you must make sure that the first applied UV coating is coatable.  Nicoat provides special coatings for this type of job that do not contain additives that can affect the adhesion of the top UV coating.

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Technical Bulletin: Green Environmental Statement

...Nicoat's Developmental chemists formulate with "green" in mind. The raw materials and vendors are carefully selected to ensure consistent quality of our finished products. Our manufacturing processes do not utilize any heavy metals, nor do our products contain any heavy metals listed under CONEG - RoHS or EU Directives EN71(3).

...Finished goods coated with Nicoat Aqueous and UV coatings can be introduced into recycling facilities and be further processed to aid in post consumer recycled paper, paper board, and plastics

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Technical Bulletin: Foam Control

...A chamber bladed system is an enclosed system flowing from drum to pump to chamber and back to the original drum.  Theoretically the system does not allow foam to develop, however in practice, this is not the case.  Air finds a way into the coating by means of:

  • Excess hose lengths
  • Worn hoses
  • Leaking diaphragm pumps
  • Worn doctor blades
  • Large cell volume
  • Excessive circulation speeds

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Technical Bulletin: Blocking

...Upon inspection, the ideal result is to have complete release from coating to coating and coating to back-side with no visible markings on either side of the samples. This test is performed internally for all Nicoat products prior to any field trials or live production runs. If a customer experiences blocking issues, all materials used by the customer should be tested for block under controlled laboratory conditions. 

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Technical Bulletin: Contrast Varnish

Contrast varnishes are specially formulated to impede the coating’s ability to lay with a smooth, glossy appearance.  The varnish is applied in the final ink station of the sheet-fed printing press, and then coated in-line with the appropriate coating to create a “contrasting” appearance in the varnished areas as compared to the unvarnished areas.  The major advantage of using contrast varnish is that the work is done in-line, resulting in quicker throughput and elimination of registration issues.

 

This technical bulletin will discuss the best practices to follow when working with contrast varnish and Aqueous or UV coatings...

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Technical Bulletin: Rewetting of Aqueous Coatings

...If the load temperature for side one is 90 ± 5°F, we recommend side two load temperature to be maintained between 85°F and 90°F. If side one is not thoroughly dried, it will be susceptible to re-wetting by side two. (The longer the time between coating the second side, the higher the load temperature can be.)... 

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