ADJUST LACQUERS for Weather Conditions

 Mohawk Finishing Materials, New Additions, Product Data Sheets  Comments Off on ADJUST LACQUERS for Weather Conditions
Sep 042021
 

Getting the most from your Lacquer Finishes

When & Why To Use
Flash-Off™ Control Solvent & Lacquer Blush Retarder

Use Lacquer Retarder
to avoid Blushing –

  Lacquer retarder is used to help eliminate “blushing”, the white foggy look caused
by HIGH humidity or rainy and cool/cold weather. This blush sometimes is only observed in areas where the build of the coating is thicker such as bull-nosed edges.
  Blush retarder keeps the finish wet longer allowing the trapped moisture to escape the coating. Another advantage is an even flow of the lacquer.

To Eliminate Orange Peel
& Over-Spray,
Use Flash-Off Control Solvent

  The Hot Weather Additive.

Generally,
  Blush Retarder Is Overused.
In cases of orange peel or overspray,
Flash-Off Control Solvent is the best choice to solve the problem.Flash-Off Control is used to improve the flow of lacquers and lacquer sealers without slowing the overall drying time.
The addition of a few ounces of Flash-Off Solvent per gallon of lacquer will solve orange peel and overspray roughness.
Flash-Off Control Solvent will improve flow and yield overall film smoothness.

 

 

Flash-Off Control Solvent Use:
   Add 3 to 5 ounces, Flash-OFF per gallon,
to Mohawk air dry nitrocellulose,
pre-catalyzed and post-catalyzed lacquer coatings. More Flash-Off may be added,
up to10% by volume if needed, but that will increase dry time.

Do Not add Flash Off Control to water base lacquers or conversion varnishes.
(NOT for use with Shellac)

About Lacquer Thinners:
Avoid Overuse of Lacquer Thinner
   Most lacquers come ready to spray. This includes Pre & Post Catalyzed, Air Dry, Instrument & Piano lacquers. If the spray gun is set properly, add Lacquer Thinner only as absolutely necessary to achieve a proper spray pattern. Adding more thinner does not help the flow-out or drying time.

Control lacquer flow-out with Flash-Off Control Solvent. If blushing is the problem, use a small percentage of blush retarder.

   Lacquer solids generally are somewhere between 20% – 25% solids and formulated
to be, Air Quality VOC’s (volatile organic compounds / smog pre-cursers), compliant as labeled. Adding thinner will result in a
non-compliant coating. Excess thinner or reducer results in a thinner coat of finish,
thus requiring additional coats to achieve the required appearance and enough thickness to provide a protective coating.