Comic book dry cleaning is the process of removing soiling and light staining using no harsh chemicals or solvents. Over time, the aging process is not kind to comic books. Something that was made to be thrown away is difficult to retain the state of near mint condition. There are many defects and soiling that cannot be removed by simple dry cleaning. Several pressable defects can be safely removed using dry cleaning methods. The goal is to clean a comic book as if nothing ever happened to the book. This makes the overall grade and eye appeal of the book increase considerably. Comic book dry cleaning is not restoration. Consider dry cleaning a process of comic book conservation. A simple small grade bump can sometimes mean a difference in thousands of dollars. You can save money by dry cleaning your own comic books using basic supplies from your home office or kitchen. Most items can be purchased directly on Amazon or eBay to save time, money, and shipping costs. Start small with some cheap dollar bin comic books or reader copies. The steps outlined here on this page will require lots of experience and practice.
Dry cleaning should always be done before heat pressing because heat and pressure can permanently set dirt, oils, and surface soiling into the paper. Removing contaminants first prevents them from being pressed deeper into the fibers, ensuring pressing improves the book rather than locking in defects.

Applying moisture to comic book folds and flaps before opening them for pressing is essential because it relaxes the paper fibers and reduces internal stress. Dry paper resists movement and is more likely to crack, split, or break color when forced open, especially along aged or previously folded areas. Proper, controlled moisture allows the fold to open gradually and safely, preserving ink and fiber integrity while preventing permanent damage before pressing begins.
Learn how to safely apply localized moisture to relax folds and flaps before comic book pressing.
Using a Helix brand pencil cap eraser is recommended along comic book spines, edges, and white areas because its smaller size and firmer control allow for precise, low-pressure cleaning in tight or high-risk zones. This precision helps reduce the chance of color lift, gloss disturbance, or accidental abrasion along spines where defects are most visible and grading sensitivity is highest. For larger, open areas of a cover—especially mid-cover sections—a PVC art eraser from Moo, Tamaki, M&G, or Accurit is preferred because it produces fine debris that lifts surface soiling efficiently while covering more area evenly, allowing for controlled, uniform dry cleaning without excessive pressure.


Now it's time to get into the fun part after scaring you with the many horrors of comic book dry cleaning. This book will discuss the best and most effective tools for cleaning comic books. There are other products out there to try and experiment with. All these products should be used gently and lightly. Small circular motions, back and forth, left to right, diagonally.
1. Blotter Paper Used for drawing up light staining using very simple liquid wet cleaning methods.
2. Absorene Eraser Pad For removal of surface grime on covers. Cut into 1” or 2” strips for different cleaning maneuvers.
3. Makeup Remover Cotton Rounds For removal of surface grime on covers.
4. Tongue Depressor / Craft Sticks / Bone Folder Used instead of bone folder tool for pushing out spine ticks from inside.
5. Number 2 Pencils with Helix brand White Soft Eraser Caps – Recommended for corners, edges, and white/light areas.
6. UV Black Light Flashlight Place a sheet of copy paper under covers to detect pin holes. Avoid pin holes during cleaning.
7. Pocket Handheld Pen Flashlight Alternate light source for detecting surface dirt and pressable defects.
8. Q-Tips Dip Q-Tip in a water bottle cap. Use damp Q-Tip inside and outside a folded over crease before opening fold.
9. Small Flathead Screwdriver for opening a graded comic book case.
10. 1.5" Ball Bearing or Massage Roller Ball Used with a tack iron, for dent removal.
11. Massage Roller Ball Alternative to Ball Bearing.
12. Tiny Magnifying Plastic Lens Visual assistance tool for spine, staples, binding, edges.
13. Jeweler's Loupe Visual assistance tool for spine, staples, binding, edges. There are some with LED lights.
14. Dental Picks and Dental Mirror, Eyeglass Screwdriver Used for lifting/placing corner flaps, tears, and flaking. No fingernails.
15. PVC Plastic Erasers Soft PVC plastic erasers like Moo, Acurit Vanish, Tamaki or M&G brands are the primary dry-cleaning method.
16. Sea Sponge Abrasive cleaner not recommended for most covers or applications. Last resort.
17. Kneaded Eraser Another form of putty like eraser used to clean surface grime from spine, cover, and edges.
18. Absorene Book Cleaner Putty Roll small logs across cover surface to lift dirt and grime.
19. Travel Size Lotion Free Facial Tissues Start by wiping book cover surfaces before dry cleaning.
20. Infrared IR Thermometer Gun Verify temperature of tack iron to avoid burning book. Take readings from copy paper, not iron.
21. Mr. Clean Magic Erasers Abrasive cleaner recommended for white, or cardstock covers. Cut into 1” squares. Last resort.
22. Tack Iron Digital or analog. It can be used to heat up surface of book before dry cleaning. For dent removal.
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The most important aspect of any experimentation with dry cleaning products is: “lotion free”, and “scent free”. If the product doesn't contain extra ingredients or abrasives, you are free to experiment. Try practicing with new cleaning products or tools on cheap dollar bin comic books first before trying out your own books or client books.
Approach every book with cautious cleaning tactics. See what is effective with the least effort. Less invasive first, to a more increased aggressive cleaning stage each time, to see what works. Start small, slowly increasing your efforts:
1. Start by carefully chipping or scraping away surface debris like boogers, candy, or mud with a dental pick. A plastic putty knife or eyeglass flathead screwdriver will also work.
2. For vintage stapled squarebound comics, press down staples flat with a plastic putty knife or flathead screwdriver.
Those 2 are priority before you begin any dry cleaning.
The first question you should ask is: “Does this book need to be dry cleaned?” Most modern comics printed today do not have soiling like a vintage comic book. Signs the book would benefit from dry cleaning:
· Production roller bump rubber marks
· Dirty grime sheen across cover
· Pencil writing
· Preparation for signing at a convention
· Soiling
· Folded over corners or tears

Before learning how to dry clean comic books, it's important to first discuss the risks. This will help prevent damage to comic books when you first start practicing. If the risks are already in your mind before you begin, you are less inclined to make these classic mistakes. Refer to Fig 10.2 from Chapter 10 for a visual aid of dry-cleaning mistakes commonly made. Here is a list of the most common mistakes (in alphabetical order) during the dry-cleaning stage:
• ABSORENE PRESSING Flat indented circle spots on cover. This is caused by leaving residual trace amounts of Absorene Book Cleaner Putty on book cover surface prior to pressing. After pressing, the putty has fused to cover and is often permanent. Make sure all contamination is removed from the book cover surfaces prior to pressing any comic book.
• ABSORENE PUTTY BOND Absorene Book Cleaner Putty should be used only on older books with covers that are not glossy or shiny. Avoid modern comic books with paper thin covers. The putty can easily rub into the book cover and cause severe and permanent damage. Areas of gloss might cause sticking on any vintage comic book using Absorene putty as well. Test a small area out first before doing the entire cover with heavy usage of putty. (Gloss thickness)
• BRITTLE PAGES Liquid cleaning will result in brittle pages and color loss. Grade loss and loss of value is also heavily dependent on page quality, and not just on stains.
• BURNT PAPER Using a tack iron on too high of a temperature setting will burn the cover and interior pages. This causes ink transfer and color rub. Keep the setting down low to a level 1 or 2 on the dial. Rarely use number 3, if ever. Digital tack irons should be on their lowest setting of 212F with a few sheets of copy paper in between the iron and page being treated. Do not keep the iron in any one spot for longer than one second at a time.
• COLOR RUB Color rub happens from too much pressure during dent removal from backer board ink transfer loss, extreme heat with tack iron, or scuffing the surface of book cover while cleaning using Melamine foam erasers.
• CONSERVED LABEL Heavy cleaning will result to a grey "CONSERVED" label with third party grading companies. This is considered a less severe form of a Restored label. Can lower the value by 25% when compared to a matching counterpart Universal Blue Label of the exact same book, on average. Greatly dependant on the popularity of issue being evaluated.
• CREASE DIRT Unfolding a corner flap crease on front cover or back cover of comic book without checking inside or opposite side of page. Creases often leave a dirt residue on the outside edge. When pressing flat a crease, there is a dirt line that remains. Clean all dirty creaselines before pressing a comic book. Foam erasers can trap dirt inside creases.
• CREASING Using fast quick movements with back-and-forth motions on outside edges of covers will cause creasing. Slow, steady, patient movement with outward motion towards edges and corners of covers protects from creasing.
• COVER TEARS Using Absorene Book Cleaner putty around tears horizontally will cause larger tears. Always travel vertically along a rip or tear.
• COVER RIPS Dry cleaning too fast rips covers. Slow down.
• COVER WRINKLING Keep elbows and wrists away from covers while dry cleaning. Use an assembled magazine backer board and bag to rest on top of book area that isn't being cleaned.
• DIRT ABOVE COVER Alternatively, leaving dirt above cover during dry cleaning is often caused by simply flipping sides. Not having a clean work surface will cause dirt to stick to side you just cleaned. This will easily press a divot or tiny dent onto cover. Make sure all contamination is removed from book cover surfaces prior to pressing any comic book.
• DIRT UNDER COVER Leaving dirt under cover during dry cleaning is often caused by flipping sides and using same srp paper or cardstock paper under cover from opposite side. Not having a clean work surface can also cause dirt to stick to SRP Paper or Cardstock Paper. This will easily press a outwards dent or tiny bubble on cover. Make sure all contamination is removed from book cover surfaces prior to pressing any comic book.
• ERASURE MARKS This happens using too much pressure with eraser products. Most common. Use light pressure, using only the weight of your wrist.
• FLAKING Tiny bits of loose chipping will come off while attempting to clean outside edges of book covers. All you can do is try to prevent loose flaking by resting a clean assembled magazine backer board and bag on top of edge while cleaning around edge.
• GLOSS LOSS Using any form of eraser with too much pressure or friction will remove the very top layer of gloss. This is not repairable without restoration of gloss coating. Light circular swirls, using no pressure, ensure protection of the top layer of gloss. Taking regular breaks to clean off eraser or replacing eraser head prevents friction buildup.
• LIQUID CLEANING Cleaning comic books using liquid or any form of moisture comes with many risks. The two most common cleaning agents are distilled water or hydrogen peroxide. Paper fiber can become too malleable and fall apart, causing tears, ripping, and color loss. Attempting to remove heavy staining or tide lines should be done with extreme caution and hundreds of hours of practice using this method. The greatest risk is loss of cover gloss even if done conservatively. Grading companies have been known to mention "Cover cleaned" or "Heavy cleaning to cover" in notes before. The risk of failure is high using this method. Recommended for experienced veteran pressers only.
• RESTORED LABEL Heavy cleaning can also result to a "RESTORED" label with third party grading companies. This is considered a severe form of grading due to aggressive dry cleaning or liquid cleaning methods. Can lower the value by 50% when compared to a matching counterpart Universal Blue Label of the exact same book, on average. Greatly dependent on the popularity of issue being evaluated. Hulk 181 would be an example of a book that likely would go for the same value as a blue label book, when compared to a restored label of the same grade.
• SCRAPING You must scrape off food or dirt particles stuck to cover. Otherwise, it becomes a catalyst for mold and bacteria growth. You also will press a dent into cover and subsequent pages from the particle left on cover. Scraping and color rub are sometimes necessary before pressing any comic book. If a comic book has color touch, scraping is the only way to remove for a clean certified label.
• SCRATCHING Make sure work surface is clean and free of dirt. Use pairs of assembled magazine backer boards and bags to move comic books around and flip. Using aggressive quick methods to clean books can cause scratches from being too harsh and abrasive using any cleaning product.
• SCUFFED STAPLES Cleaning rusty staples by scuffing the surface can be considered restoration. Leave staples “as is” to prevent any sort of confusion over replacement.
• SPINE SPLITS Using a backer board under cover while doing any sort of heavy dry cleaning will cause spine splits. Try using 110 lb cardstock and SRP Paper under book cover and a magazine backer board at centerfold.
Always perform a thorough dry cleaning before introducing humidity to comic books. After the cleaning stage has been completed, it is now time to place the comic book inside a humidity tank. Make your own humidity tank at home for less than $45.
Comic Book CPR: First Edition is a giant 388 page comprehensive beginner’s guide to cleaning and pressing comic books, written for collectors who want to improve grades, eye appeal, and long-term preservation without relying on third-party services. The book walks readers step by step through inspection, dry cleaning, humidity control, pressing techniques, defect identification, and risk avoidance, using clear language, full-color photos, charts, and real-world examples. Designed to help readers recognize pressable versus unpressable defects and avoid costly mistakes, it provides a practical foundation for safely improving comic books at home while protecting their collectible value.
Love this free online guide? This is only a fraction of the content inside Comic Book CPR: First Edition! Learn advanced cleaning techniques used by leading professionals in the comic book pressing industry. Featuring over 30 exclusive comic book pressing stacking layer formulas.
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