WonderMASK W Washable Solder Mask

Nonflammable, water-washable

Part # Name Size Units
Per Case
2205-8SQ Wondermask W 8 oz (237mL) 24
2205-G Wondermask W 1 gal (3.8L) 1
Packaging Order minimum case quantity only. Extra shipping fees may apply.
Order from an authorized distributor
Quick drying water­ washable mask. Quickly and easily removed with in­line and batch cleaning systems. NOTE: Not for use in closed-loop systems with filtration or DI system.

WonderMASK W has a number of useful applications in PCB assembly:

Thru-hole masking – Prevent soldering open holes in a wave soldering process by covering with WonderMASK. All of the masks listed below are well suited for this application.

Temporary component adhesive – WonderMASK can be used to tack down components on double-sided PCBs.

All Techspray WonderMASK products have the following advantages:

  • Withstands lead-free soldering temperatures up to 640°F (343°C) in wave soldering process
  • RoHS compliant
 

Features & Benefits

  • Water washable
  • Non-corrosive
  • Low odor
  • Nonflammable

Specifications: Meets MIL-STD-2000 paragraph 5.3.18 parts a,b, and d.
Call-outs: HP 8500-4214

Applications


FAQ's

Does WonderMASK temporary solder mask contain silicone?

None of our masks contain silicone and they leave no residue behind.

Can temporary solder mask be left on the PCB permanently?
Temporary solder mask is intended to be just that – temporary. Manufacturers of solder masks, like Chemtronics, always recommend removing the mask because there is no testing to support doing otherwise. If you decide to leave the solder mask on as a permanent part of the PCB, you will have to do your own functional and reliability testing to ensure it does not cause a problem.
What could cause foaming problems during rinse-off of the water-soluble masks?

Particulates + surfactants during rinse = foam. Check filtration system or drain & recharge the rinse water system as necessary. The particulates may come from various sources, but excess solder flux being rinsed off the boards is a prime culprit. Bacteria in the water can cause foaming. Have a water sample analyzed.

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