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TEC2211

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Wondermask© P
Peelable temporary solder mask

  • Insoluble in water or solvent
  • Contains no ammonia
  • No offensive odour
  • Colour change on drying
  • Static safe - non-tribo charging
  • Stable formulation
  • Long shelf life
  • Non-corrosive
  • Safe on metals
  • Thixotropic
  • Versatile - many uses
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Description
Techspray TEC2211 Wondermask© P is a temporary, peelable solder mask or resist comprised of a thixotropic, synthetic acrylic latex designed to withstand fluxing, wave soldering, and cleaning operations. Unlike natural latex mask, it contains no offensive ammonia and hence is non-corrosive to copper, gold, silver, or pre-soldered surfaces and will not stain substrates. Material stability problems, common in natural latex formulations, are avoided. When applied, the product appears opaque pink, and when cured, becomes completely translucent red. Cured mask can be used in water or solvent systems and in masking for conformal coatings. Excellent heat stability allows for prolonged exposure to high temperature without product degradation. This product may be used in most common forms of mask applications such as robotic, pneumatic, hand applied, or template screening (not recommended for silk screening).

Wondermask P

Applications

  • Protects plated through holes and contact surfaces from solder during soldering operations
  • Mask areas during conformal coating applications
  • Gold fingers
  • Card edges

Masked pcb

Directions
Mask can be applied using robotic, pneumatic, hand applicators or template screening. Not recommended for silk screening applications. Apply a 0.75mm to 1mm coating for best results to desired area. Wondermask P may be thinned using deionised water. The substrate should be free from grease, oil, and particulate matter. Drying times depend upon ambient humidity. Under normal conditions Wondermask P will cure in 1 hour at 25°C; however, cure can be accelerated to 30 minutes at 65°C or 20 minutes at 82°C. Do not over cure as blistering of mask can occur causing removal problems. Mask will change from an opaque pink to a translucent red when complete cure is accomplished. Mask does not have to be completely dry to withstand soldering operation; however, it should be completely translucent before removal. Removal is by peeling off. Dried mask is not soluble in water or solvents.

Lead-free symbol Test results indicate that this product is suitable for lead-free soldering, which often occurs at higher temperatures. Please evaluate in your lead-free process.

Ordering information
Part number Description
TEC2211-8SQ Wondermask P - 8 fluid ounce squeeze bottle
TEC2211-G Wondermask P - 1 US gallon in plastic

Other Information
Download the  Techspray TEC2211 Wondermask P product data sheet - pdf format (140Kb).

This movie is of one of our robots being used to dispense a liquid temporary solder mask onto a printed circuit board.


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See also!
 Solder masking dots & tape
 DYMAX UV curable temporary masks
  Dispenser for temporary solder masks

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April 2012
Version 3.6

INTERTRONICS Logo

17 Station Field Industrial Estate, Banbury Road
KIDLINGTON, Oxfordshire, OX5 1JD, ENGLAND
t +44 1865 842842  e info@intertronics.co.uk
Statements, technical information and recommendations contained herein are based on tests we believe to be reliable but they are not to be construed in any manner as warrantees expressed or implied. The user shall determine the suitability of the product for his intended use and the user assumes all risk and liability whatsoever in connection therewith.
© INTERTRONICS 1997, 2012