U-Mark WASHOFF Water Removable Paint Marker is a valve-action paint marker built for one job: mark the part clearly through production, then remove it completely in a water bath. Critically, it leaves no halo, no bleed-through and no ghost when the cleaned surface is later primed or painted — the failure mode that disqualifies most removable markers in automotive and coatings work.
Auto plants worldwide use WASHOFF to identify work-in-process parts and inventory and to flag re-work items. Made in Belleville, Illinois, USA. Sold as a 12-count box (1 dozen) in six colors.
Key Features
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Removable in a water bath — leaves no halo, bleed-through or ghost when the surface is primed or painted afterward.
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Marks on wet and oily metal — assembly, stamping and metal fabrication surfaces where a dry marker will not take.
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Reversible bullet / chisel tip — 5 mm to 3 mm from a single pen. Heavy-duty replaceable tip.
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Xylene-free and toluene-free — n-propyl alcohol / diacetone alcohol solvent paint.
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13 ml capacity in a 5/8" aluminum barrel — 30% more than a standard marker.
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Service range 34 °F to 130 °F, dries in about 45 seconds.
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Six colors — Black, Blue, Green, Red, White, Yellow.
Applications
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Automotive assembly plants — work-in-process part and inventory identification, re-work flags
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Stamping & press shops — blank and panel marking ahead of the wash line
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Metal fabrication — temporary cut, bend and fit-up references
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Quality control & inspection — witness marks, hold tags, sort notation
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Coating & galvanizing lines — pre-treatment identification that clears in the bath
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Process identification & coding — anywhere the mark must not survive into the finished product
Technical Specifications
| Manufacturer |
U-Mark, Inc. — Belleville, Illinois, USA |
| Model |
WASHOFF Water Removable Paint Marker (items 10451–10456) |
| Ink Type |
Removable solvent paint (n-propyl / diacetone alcohol) — xylene & toluene free
|
| Tip |
Reversible bullet / chisel, 5 mm–3 mm, replaceable |
| Capacity |
13 ml |
| Dimensions |
5.63" L × 0.63" dia. (142 × 16 mm) |
| Service Temperature |
34 °F to 130 °F |
| Dry Time |
Approx. 45 seconds |
| Removal |
Water bath — no halo, bleed or ghost on repaint |
| Packaging |
12 per box (0.75 lb) · 144 per case |
Colors & Item Numbers
| Color |
Item No. |
Replacement Tip |
| Black |
10451 |
12000 |
| Blue |
10452 |
12000 |
| Green |
10453 |
12000 |
| Red |
10454 |
12000 |
| White |
10455 |
13101 |
| Yellow |
10456 |
13101 |
Choosing a Removable Marker
| Product |
Marking Medium |
Removal Method |
No Halo on Repaint |
Colors |
| U-Mark WASHOFF (this product) |
Removable paint |
Water bath |
Yes — stated by manufacturer |
6 |
| U-Mark EZ OFF Wet Erase Industrial Marker |
Water-soluble ink |
Damp cloth |
Yes |
4 |
| Munhwa SM Steel Marker |
Removable ink |
Water, alkali or acid wash |
Yes |
2 |
| Dykem Rinz-Off Washable Marker |
Removable ink |
Water rinse |
Varies |
3 |
| Markal removable marking series |
Crayon / ink |
Varies by grade |
Varies |
Varies |
Competitor specifications are published by their respective manufacturers and are listed for comparison only. All brand names are the property of their owners.
Storage & Handling
- Shake well, prime the tip on scrap, and re-cap immediately after marking.
- Store horizontally in a cool dry place out of direct sunlight; keep between 34 °F and 130 °F.
- Validate removal on a sample part before rolling into production — bath chemistry, temperature and dwell time affect results.
- Refer to the U-Mark SDS for full handling guidance. Keep out of reach of children.
Frequently Asked Questions
What is the difference between WASHOFF and EZ OFF?
WASHOFF is a removable paint — heavier bodied, survives more handling, and comes off in a water bath. EZ OFF is a water-soluble ink that wipes off with a damp cloth. Both are xylene free; they solve different problems.
Will the mark survive to the wash stage?
Yes. It is designed to stay legible through in-process handling and only lift in an actual water bath.
Can the surface be painted afterward?
Yes — that is the point of the product. U-Mark states the mark leaves no halo, bleed-through or ghost when the cleaned surface is primed or painted.
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