Techspray 2211-8SQ, WonderMASK P Peelable Solder Mask, 8oz Bottle
Techspray 2211-8SQ, WonderMASK P Peelable Solder Mask, 8oz Bottle
Techspray 2211-8SQ WonderMASK P is a non-ammoniated, peelable temporary solder mask supplied in an 8oz bottle. Its thixotropic synthetic acrylic latex formulation supports protected through-holes and selected component areas during qualified PCB assembly processes. Techspray also identifies WonderMASK P for masking areas that must remain free of conformal coating.
This is a peelable mask, not a water-washable mask. The legacy product URL contains water-washable wording; identify the formulation by the 2211-8SQ part number and WonderMASK P name.
Best Uses / Applications
- Hand-applied temporary masking of designated PCB areas.
- Protecting selected through-holes in a validated wave-soldering process.
- Masking contacts and other defined keep-outs during compatible conformal-coating operations.
- Process evaluation or lower-volume use where an 8oz bottle is appropriate.
- Temporary component tacking on double-sided PCBs where the process has been qualified.
Technical Specifications
| Part number | 2211-8SQ |
|---|---|
| Product family | WonderMASK P, 2211 |
| Format | 8oz bottle |
| Formulation | Thixotropic synthetic acrylic latex; non-ammoniated |
| Removal | Peelable |
| Appearance | Opaque pink when applied; translucent red when cured |
| Manufacturer's suggested thickness | 20–30 mil |
| Published cure guidance | 1 hour ambient; or 30 minutes at 65°C; or 20 minutes at 82°C. Actual drying depends on conditions. |
| Application methods, product family | Template, hand, pneumatic and robotic |
| Thinner listed in selection guide | DI water; follow current product instructions |
| Wave-soldering statement | Manufacturer lists up to 640°F / 343°C for wave-soldering exposure, not a continuous service-temperature rating. |
Key Features and Handling
Techspray describes WonderMASK P as low odor, non-ammoniated, nonflammable, and compatible with gold and copper leads. Its cure-related color change helps distinguish applied from cured material. The manufacturer lists RoHS compliance; this is not approval of an entire assembly or process. Review the current SDS for the supplied formulation and lot before use.
Apply to a clean substrate free of flux, oil and particulate matter. Follow the manufacturer's application-thickness and cure guidance. Do not overcure; the manufacturer warns that blistering can cause removal problems. For conformal coating, cure the mask before applying the coating and qualify the de-masking window for the exact coating system.
Peelable P vs. Washable Mask vs. Larger Format
| Option | How it differs |
|---|---|
| 2211-8SQ WonderMASK P | 8oz peelable-mask bottle for smaller quantities |
| 2211-G WonderMASK P | Same P family in a one-gallon format; verify dispensing requirements |
| Water-washable temporary mask | Different removal method; not automatically interchangeable under conformal coating |
Frequently Asked Questions
Is 2211-8SQ water-washable?
No. This listing is WonderMASK P, a peelable temporary mask. Do not use the legacy URL wording to select its removal method.
Can it mask conformal coating?
Techspray identifies WonderMASK P for this application. Validate the exact coating, solvent exposure, geometry, cure sequence and complete mask removal.
How thick should I apply it?
The published WonderMASK P guidance specifies 20–30 mil. Confirm the current instructions and qualify thickness for the actual feature.
How long does it take to cure?
Published guidance is 1 hour at ambient conditions, 30 minutes at 65°C, or 20 minutes at 82°C. Humidity and application conditions affect drying; avoid overcuring.
When do I peel it after coating?
Techspray's general spot-mask guidance is to peel when the coating is dry to the touch but before full cure. Use the qualified window for your specific mask and coating combination.
Does the 640°F statement describe continuous use?
No. It is a manufacturer wave-soldering process statement, not a blanket approval for sustained high-temperature use or every soldering cycle.
Related Products and Resources
WonderMASK P 2211-G, one gallon · Techspray collection · Conformal Coating & PCB Protection Resource Hub
