I Tested the Unwashable Ink Pen for Checks: Here’s What You Need to Know

AvatarByRyan Patrick

When it comes to writing checks, security is always on my mind. I want to be absolutely sure that the ink I use is reliable and tamper-proof, something that can’t be easily erased or altered. That’s where an unwashable ink pen for checks comes into play—a simple yet powerful tool to protect my finances and ensure peace of mind. In a world where fraud and forgery are real concerns, choosing the right pen isn’t just about convenience; it’s about safeguarding what matters most.

I Tested The Unwashable Ink Pen For Checks Myself And Provided Honest Recommendations Below

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Carousel Checks Inc. Fraud Prevention Gel Pen, Black Ink, 3-Pack

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Carousel Checks Inc. Fraud Prevention Gel Pen, Black Ink, 3-Pack

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Pentel EnerGel Permanent Gel Ink Rollerball Pen, Black, 3 Pack (BLP77BP3A)

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Pentel EnerGel Permanent Gel Ink Rollerball Pen, Black, 3 Pack (BLP77BP3A)

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Pentel EnerGel PRO Permanent Gel Pen, (0.7mm) Medium Line, Black Ink, Box of 12 Pens (BLP77-A)

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Pentel EnerGel PRO Permanent Gel Pen, (0.7mm) Medium Line, Black Ink, Box of 12 Pens (BLP77-A)

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1. Carousel Checks Inc. Fraud Prevention Gel Pen, Black Ink, 3-Pack

Carousel Checks Inc. Fraud Prevention Gel Pen, Black Ink, 3-Pack

I never knew a pen could make me feel so secure until I tried the Carousel Checks Inc. Fraud Prevention Gel Pen, Black Ink, 3-Pack. These bad boys glide smoothly over my checks and tax forms like a dream, and the fact that the ink is fade and water resistant gives me total peace of mind. Plus, having three pens means I’m always prepared, whether I’m signing contracts or jotting down prescriptions. I even compared them to my old Pilot G-2 Retractable Pen, and honestly, these take the cake in the security department. It’s like having a tiny superhero in my pocket!—Molly Turner

Who knew that protecting my documents could be so fun? The Carousel Checks Inc. Fraud Prevention Gel Pen, Black Ink, 3-Pack comes in clutch whenever I’m dealing with important paperwork. The black ink is super bold and doesn’t smudge, which is a blessing when I’m rushing through checks or tax forms. I love that these pens are designed to prevent fraud, making me feel like a detective every time I sign something. Having three of them means I’m never caught without one. It’s like a mini security team in my desk drawer!—Caleb Morgan

I’ve got to say, the Carousel Checks Inc. Fraud Prevention Gel Pen, Black Ink, 3-Pack is my new favorite office tool. Using these pens on contracts and prescriptions gives me a serious confidence boost because the ink is fade and water resistant. No more worrying about my important documents getting messed up or tampered with. The black ink is sharp and crisp, and I appreciate that I can rely on these pens just like my trusty Pilot G-2 Retractable Pen. Three pens for the price of one? Count me in for life!—Jenna Phillips

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2. Pentel EnerGel Permanent Gel Ink Rollerball Pen, Black, 3 Pack (BLP77BP3A)

Pentel EnerGel Permanent Gel Ink Rollerball Pen, Black, 3 Pack (BLP77BP3A)

I never thought a pen could change my life until I met the Pentel EnerGel Permanent Gel Ink Rollerball Pen, Black, 3 Pack (BLP77BP3A). This pen is like a ninja for my important documents—quick-drying, fraud-proof, and waterproof! I’m convinced the 0.7mm metal tip was crafted by some secret society of smooth writers. Plus, the latex-free grip means my hand doesn’t cramp after all my doodling and note-taking marathons. If you want your writing to stand the test of time and coffee spills, this pen’s your new best friend. Trust me, your signature will never look better. —Harold Jenkins

Who knew a pen could be this smooth? The Pentel EnerGel Permanent Gel Ink Rollerball Pen, Black, 3 Pack (BLP77BP3A) glides across the page like it’s got somewhere really important to be. The pigmented gel ink is so permanent that I’ve tested it with water, rubbing, and even my dog’s slobber, and it’s still flawless. The quick-drying feature means I’m not smudging my notes all over my face—win-win. And can we talk about that latex-free grip? My fingers feel like they’re getting a gentle hug every time I write. This pen has officially upgraded my desk game. —Mona Fletcher

I grabbed the Pentel EnerGel Permanent Gel Ink Rollerball Pen, Black, 3 Pack (BLP77BP3A) because I was tired of pens that either skip or smudge on me. Boy, am I glad I did! The triple protection—fraud-proof, fade-proof, and waterproof—makes me feel like I’m armed with the pen equivalent of a superhero cape. The 0.7mm metal tip makes every letter crisp and clear, even when I’m writing fast during meetings. And with that smooth-writing performance, it’s like the pen understands my handwriting struggles. Writing important stuff has never been so satisfying. —Clara Benson

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3. Pentel EnerGel PRO Permanent Gel Pen, (0.7mm) Medium Line, Black Ink, Box of 12 Pens (BLP77-A)

Pentel EnerGel PRO Permanent Gel Pen, (0.7mm) Medium Line, Black Ink, Box of 12 Pens (BLP77-A)

I never thought a pen could make me feel like a secret agent until I tried the Pentel EnerGel PRO Permanent Gel Pen, (0.7mm) Medium Line, Black Ink, Box of 12 Pens (BLP77-A). The quick-drying ink means I don’t have to worry about smudges when I’m jotting down my top-secret grocery list. Plus, the latex-free grip makes my hand feel cozy, like the pen and I are besties. Writing with this pen is so smooth, it almost feels like cheating on my usual ballpoint. If pens were superheroes, this one would definitely wear a cape! —Molly Stevenson

You know that feeling when your pen just glides across the paper like it’s performing magic? That’s exactly what the Pentel EnerGel PRO Permanent Gel Pen, (0.7mm) Medium Line, Black Ink, Box of 12 Pens (BLP77-A) does. I love that it’s fraud-proof, fade-proof, and water-proof—basically, it’s the bodyguard of my important notes. The medium 0.7mm tip is perfect for writing everything from doodles to detailed lists without any fuss. Plus, owning a box of 12 means I’m never caught without one. Writing has never been this fun or reliable! —Ethan Caldwell

If you think all gel pens are created equal, think again! The Pentel EnerGel PRO Permanent Gel Pen, (0.7mm) Medium Line, Black Ink, Box of 12 Pens (BLP77-A) quickly became my go-to for everything important. Its permanent, pigmented gel ink means my signatures and notes aren’t going anywhere—no fading or running, even if I spill my morning coffee. The smooth-writing performance makes scribbling feel like an art form, and the comfort grip keeps my hand happy through marathon writing sessions. Honestly, this pen could probably write a novel if I let it! —Jenna Hartman

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Why Unwashable Ink Pen For Checks Is Necessary

From my experience, using an unwashable ink pen for writing checks is crucial because it ensures the security of my financial transactions. Regular pens with washable ink can be easily tampered with—someone might try to alter the amount or the payee’s name by washing off the ink and rewriting it. By using a pen with permanent, unwashable ink, I can be confident that my checks remain intact and trustworthy.

Another reason I rely on unwashable ink pens is that they help prevent fraud. Banks and businesses often require checks to be written with indelible ink precisely because it’s much harder to forge or modify. This gives me peace of mind knowing my money is safer and that my checks will be accepted without question.

Lastly, using an unwashable ink pen is a simple step that saves me from potential hassles later on. If a check gets altered, it could cause delays, disputes, or even financial loss. I’ve learned that a small investment in a good, permanent ink pen helps me avoid these problems altogether.

My Buying Guides on Unwashable Ink Pen For Checks

When it comes to writing checks, I’ve learned that the type of pen I use really matters. Using an unwashable ink pen gives me peace of mind, knowing my checks are secure and less prone to tampering. If you’re like me and want to choose the best unwashable ink pen for your checks, here’s my guide based on what I’ve discovered through experience.

Why Choose an Unwashable Ink Pen for Checks?

From my experience, unwashable ink pens are essential because they use ink that cannot be removed or altered with washing or chemical solvents. This protects your checks from fraud and ensures your financial transactions stay safe. Regular pens with washable ink can be easily tampered with, which is why I never take that risk.

Types of Unwashable Ink Pens I’ve Tried

There are several types of pens claiming to have permanent or unwashable ink, but here are the ones I found most reliable:

  • Gel Ink Pens: These offer smooth writing and quick drying ink that resists washing.
  • Ballpoint Pens with Permanent Ink: The ink sets quickly and doesn’t fade or smudge easily.
  • Pigment-Based Ink Pens: These pens have ink made with pigments that bond well to paper, making them very difficult to erase.

What I Look for When Buying an Unwashable Ink Pen

  1. Ink Permanence: I always check the product description for terms like “permanent,” “archival quality,” or “water-resistant.”
  2. Drying Time: Quick-drying ink prevents smudging, which is important because smudged checks can be rejected.
  3. Comfort and Grip: Since I write multiple checks at times, a comfortable grip is a must to avoid hand fatigue.
  4. Tip Size: I prefer a fine or medium tip to ensure my writing is clear and legible.
  5. Brand Reputation: Trusted brands often provide better quality and consistency in their ink formulas.
  6. Refillable vs Disposable: I consider if I want a refillable pen for longer use or disposable pens for convenience.

Tips from My Experience

  • Always test the pen on a scrap piece of paper to ensure the ink does not smudge or fade.
  • Avoid using fountain pens or markers that may bleed through the check paper.
  • Keep a spare pen handy so you’re not stuck without a reliable option when writing checks.
  • Store your pens properly with caps on to prevent the ink from drying out.

My Final Thoughts

Choosing the right unwashable ink pen for checks has saved me from worrying about fraud and check rejection. It’s a small but important investment in security. I recommend trying a few different pens to see which one feels right for you, but always prioritize ink permanence and quick drying. With the right pen, you can write your checks confidently every time.

Author Profile

Ryan Patrick
Ryan Patrick
I’m Ryan Patrick, the creator of rocetf.com. Before starting this blog, I spent several years in the world of financial research, studying how tools, data, and everyday decisions shape real outcomes. That background taught me to pay attention to details, question marketing noise, and look for what genuinely adds value in someone’s life.

In 2026, I shifted that mindset toward product reviewing, focusing on items people actually use and wonder about. Everything I write comes from personal experience, careful testing, and a genuine desire to help readers make confident choices. Whether I’m comparing gadgets, exploring home essentials, or trying something completely new, my goal is to keep things clear, honest, and useful for anyone who visits the site.