Chemask NA – Non-Ammoniated
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Chemask NA – Non-Ammoniated Solder Mask

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Chemask NA – Non-Ammoniated Solder Mask

Chemask® NA Non-Ammoniated Solder Masking Agent is a latex and ammonia free, fast curing, peelable temporary spot mask formulated for safe use on sensitive metals. It contains high-temperature resistant compounds that protect component-free areas during wave soldering. Chemask® NA may be used to protect pins, posts, contacts and edge connections in the solder reflow oven or during conformal coating processes.

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Features & Benefits

  • Will not affect gold, copper, nickel, silver and OSP finishes
  • For lead-free or tin/lead processes
  • Stable to 550º F (288ºC)
  • Phthalate-free, low toxicity and environmentally safe
  • Compatible with rosin, no-clean and water soluble flux types
  • Dries tack free in 15 minutes
  • Can be placed directly into pre-heat oven without waiting
  • Removes easily and leaves no residue
  • Non-contaminating, non-staining and noncorrosive
  • RoHS compliant

Applications

  • Engineered for use with bare copper, silver, and other reactive metals
  • Ideal for SMT applications
Specifications MIL-STD-2000A, PARA.5.3.18
Shelf Life 2 yrs.
Shipping Name Coating Compound Not Regulated

FAQ's

How do I avoid peelable solder mask from breaking off and leaving residue behind?

The follow are factor to consider when trying to avoid breakage: 1) Curing – Partially cured mask will have more of a tendency to break or leave residue. 2) Temperature and duration in extreme heat – Mask is designed for wave soldering, which is about a second of exposure to molten solder temperatures (generally 550°-650°F). If the mask is sent through a reflow oven the duration is much longer, which can lead to more mask brittleness. If the mask is exposed to high-temperature solder (e.g. silver), it can also lead to more brittleness. 3) Application method – When hand applying, we recommend holding the bottle at about a 60° angle, rather than upright at 90°. That tends to apply the material as a thick blanket over the areas to be masked. When the bottle is held at 90°, the mask is generally applied thinner, and is forced through holes and around components. Those thin areas are more likely to become brittle and stay behind, and mask pushed into holes and around components is harder to remove, so more likely to break.

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Part # Size Units Per Case Price Per Case Add To Cart
CNA8

8 fl oz./ 236 ml squeeze bottle

24 bottles $456.96
Order from an authorized distributor
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