Before your child's first day of daycare, you'll hear some version of the same instruction from almost every provider: everything needs to be labeled. Bottles, sippy cups, food containers, bags, clothing, shoes — all of it. And the labels need to survive.
The word "waterproof" gets used a lot in the label world, but not all waterproof labels perform the same way in a daycare environment. A label that holds up fine on a water bottle at a picnic may not survive being washed nightly in your home dishwasher or sterilizer for months on end. The difference is in the adhesive, the material, and — most importantly — the preparation before you apply.
This guide explains what waterproof labels actually need to do in a daycare setting, which surfaces they bond to and which they don't, the one preparation step that determines how long they hold, and what parents most often get wrong before the first drop-off.
From the founder of Sticky Monkey Labels
I'm Dodie — mom of three boys, two with food allergies and one with special needs, and founder of Sticky Monkey Labels. I'm now in my 15th year of business, which started in 2011. Waterproof labels for daycare are one of the first things new parents order from us — and one of the most common sources of questions when something doesn't go as expected. This is what I'd tell you if you called the shop.
What's in this guide
- What "waterproof" actually means for a daycare label
- What needs a waterproof label at daycare
- Which surfaces waterproof labels bond to — and which they don't
- The prep step that determines how long labels hold
- Dishwasher and bottle sterilizer — what labels survive
- Waterproof labels vs. clothing labels — which is which
- The most common daycare labeling mistakes
- Frequently asked questions
1. What "Waterproof" Actually Means for a Daycare Label
Waterproof means the label material and adhesive are designed to resist moisture — but the level of resistance varies significantly by product. There's a real difference between a label that's water-resistant (handles splashing and brief exposure) and one that's genuinely waterproof for daily use in a daycare environment.
In a daycare context, a waterproof label needs to handle:
- Daily washing in a home dishwasher or bottle sterilizer — every night, seven days a week
- Repeated handling by daycare providers throughout the day — wet hands, formula residue, soap
- Refrigerator and warming — temperature cycling from cold storage to warm water bath for breast milk bottles
- Months of continuous use — not a one-time event but a daily routine for the duration of the daycare year
Our waterproof labels are designed and tested for exactly this environment. The material is a durable synthetic stock — not paper, which softens and separates when wet — and the adhesive is specifically formulated to maintain bond strength through repeated moisture exposure and temperature cycling. The print is also protected so it doesn't smear or fade in wet conditions.
2. What Needs a Waterproof Label at Daycare
Most daycare providers require labels on everything your child brings. Here's the full list of items that need waterproof labels — and a note on the items that need a different label type instead.
Items that need waterproof labels
- Baby bottles — body and lid separately
- Sippy cups and transition cups — body and lid separately
- Food containers and snack containers — body and lid separately
- Thermos and insulated food jars — body and lid separately
- Breast milk storage bags
- Daycare bag and lunchbox
- Pacifiers and pacifier clips
- Teethers and chew toys
- Sunscreen bottle (if sent to daycare)
- Diaper cream and personal care items
3. Which Surfaces Waterproof Labels Bond To — and Which They Don't
Waterproof labels use a pressure-sensitive adhesive that bonds to smooth, stable surfaces. Understanding which surfaces work and which don't prevents the most common application mistakes.
Surfaces that work well
- Plastic — standard baby bottles, food containers, sippy cups, lunchboxes. The most reliable surface for waterproof labels when properly cleaned before application.
- Stainless steel — water bottles, insulated containers, steel food jars. Excellent surface when cleaned with alcohol first to remove fingerprint oils and manufacturing residue.
- Glass — glass baby bottles. Clean, flat, and smooth — bonds very well.
- Hard plastic lids and caps — the plastic nipple ring on silicone bottles, bottle caps, container lids. Labels sized correctly for the cap surface bond well here.
Surfaces that don't work
- Silicone — silicone is a non-stick surface by nature. The same property that makes silicone bakeware release food makes it impossible for any adhesive label to bond to it reliably. Never apply a waterproof label to a silicone bottle body or silicone cup body. Use the hard plastic nipple ring or rim instead.
- Textured surfaces — raised dots, ridges, or grip patterns mean the adhesive contacts only the raised peaks and not the full label surface, creating immediate lift points. Labels cannot be applied to textured surfaces. Find a smooth area on the item, or use the nipple ring.
- Fabric — waterproof labels are not for fabric of any kind. Use iron-on labels bonded directly into fabric, or stick-on clothing labels on care tags or the largest flat area of a tagless imprint, for all clothing items.
- Wet or damp surfaces — never apply a label to a surface that is wet or damp. The adhesive will not bond to a wet surface regardless of how firmly you press.
Surfaces that require extra preparation
- Powder-coated stainless steel — the colored finish on many popular water bottles. Bonds well after thorough alcohol cleaning but requires the full 24-hour cure time before first washing.
- Curved surfaces — labels applied to a curved bottle surface will want to lift at the edges if the label is too wide for the bottle's curvature. Use a label size appropriate for the bottle diameter. A label that wraps more than about a quarter of the bottle circumference will lift.
4. The Prep Step That Determines How Long Labels Hold
This is the step most parents skip — and it's the one that makes the biggest difference in how long a waterproof label lasts in a daycare environment.
Clean the surface with alcohol before applying.
Every bottle, container, and hard surface you plan to label has surface contamination on it — oils from manufacturing, oils from your hands when you handled it, soap residue from the last wash, or any combination of these. Pressure-sensitive adhesive bonds to the surface molecules directly. If those surface molecules are coated in oil or residue, the adhesive bonds to the oil rather than to the surface itself — and the oil eventually lets go.
The correct preparation sequence
- Wipe the application area with alcohol on a cloth or cotton pad. Use enough to visibly wet the surface.
- Let it dry completely — this takes less than a minute at room temperature. Do not apply the label while the surface is still wet with alcohol.
- Apply the label to the clean dry surface immediately after the alcohol dries. Don't handle the cleaned area with your fingers before applying — hand oils transfer immediately.
- Press firmly across the full label surface, working from the center outward. Every edge must make full contact.
- Allow 24 hours before the first wash or sterilizer run.
5. Dishwasher and Bottle Sterilizer: What Labels Survive
Most daycare families wash bottles at home every evening — in the dishwasher, in a countertop bottle sterilizer, or by hand. Our waterproof labels are designed to survive all three methods when applied correctly to a properly prepared surface.
Home dishwasher
Labels survive regular home dishwasher cycles when applied to a clean, properly prepared surface with the full 24-hour cure time before the first run. Top rack placement reduces the direct heat exposure that the bottom rack heating element produces and extends label life over time. If you consistently run bottles on the bottom rack, labels will still survive — they just may show wear sooner over many months of daily washing.
Bottle sterilizer
Electric steam sterilizers use heat and steam to sanitize bottles. Labels survive steam sterilization when fully cured before the first sterilizer run — the 24-hour window after application is especially important here because the sterilizer's heat is more direct than a dishwasher water cycle. A label that has fully set handles sterilizer use well. A label applied and sterilized the same day is being tested before it's ready.
Hand washing
The least stressful washing method for labels. Hot soapy water and normal scrubbing don't stress a properly applied label. Hand washing extends label life compared to daily dishwasher use, but most families use the dishwasher for convenience — and the labels are designed to handle that.
6. Waterproof Labels vs. Clothing Labels: Which Is Which
This is one of the most common points of confusion for new daycare parents — and getting it wrong is the most common reason labels fail on the wrong items.
Waterproof labels — for hard surfaces only
Bottles, containers, bags, lunchboxes, pacifiers, and any smooth hard surface. Pressure-sensitive adhesive that bonds to stable non-fabric surfaces. Dishwasher and sterilizer safe when applied correctly. Not for fabric of any kind.
Iron-on clothing labels — for fabric without a usable care tag
Socks, underwear, onesies, and tagless clothing items that go to daycare. Heat-activated adhesive that bonds permanently into fabric fibers. The only reliable option for items without a care tag and for anything going through daycare laundry repeatedly. Not for hard surfaces.
Stick-on clothing labels — for fabric items with a care tag or tagless imprint
Jackets, hoodies, everyday outfits with accessible care tags — peel and press onto the care tag, no ironing needed. For tagless clothing, press onto the largest smooth flat area of the tagless imprint inside the garment. Never apply directly to fabric itself. Holds through home laundry. Also works on hard surfaces, making it versatile for a quick labeling session covering both tagged clothing and some gear in the same sitting. Not for socks, underwear, or direct fabric application.
7. The Most Common Daycare Labeling Mistakes
These are the mistakes that show up most often in the calls and messages we receive from new daycare families — all avoidable with the right information before day one.
Applying labels without cleaning the surface first
The single most common cause of labels that peel within the first week. Oils from your hands, manufacturing residue, and soap from previous washing all prevent the adhesive from bonding to the surface directly. Clean with alcohol first, every time, on every surface.
Not labeling the lid separately
Labeling the bottle and not the lid means a missing or mismatched lid within days. The body and lid of every container need separate labels. This is especially important for breast milk bottles where the lid carries date and ounce information alongside the name.
Washing before the 24-hour cure time
Labels applied and immediately run through the dishwasher or sterilizer have not finished bonding. Allow 24 hours from application before the first wash. Label bottles the night before you need them — not the morning of drop-off.
Trying to label silicone surfaces
Nothing sticks to silicone reliably — it's a non-stick surface by nature. Parents who try to label the silicone body of Comotomo and similar bottles are always disappointed. Use the plastic nipple ring instead. That's what it's there for.
Using waterproof labels on clothing
Waterproof stickers applied to fabric won't bond — fabric moves and flexes in ways that defeat any pressure-sensitive adhesive. Clothing needs clothing labels. The two types are for different surfaces and are not interchangeable.
Ordering only bottle labels and forgetting the clothing labels
Almost every daycare requires a labeled change of clothes in the bag every day. Parents who order only waterproof labels for bottles arrive on day one without labeled clothing. Order both before the first drop-off — bottles and gear need waterproof labels, the daily outfit and shoes need clothing labels.
Applying labels in the middle or bottom of the bottle
Labels belong at the top of the bottle, nearest the nipple ring — where they're visible to providers during feeding without having to turn the bottle upside down, and away from the base where bottles sit in wet surfaces. Never apply in the middle or at the bottom.
Browse our waterproof bottle labels and waterproof name labels at Sticky Monkey Labels. Questions about which label is right for a specific item? Call us at 1-888-780-7734.
Frequently Asked Questions
My label keeps peeling off after a few days. What is going wrong?
Almost certainly one of three things: the surface wasn't cleaned with alcohol before applying, the label was washed before the 24-hour cure time, or the label was applied to a silicone or textured surface where adhesive cannot bond. Start with surface prep — wipe with alcohol, let dry completely, then apply. If peeling continues after correct preparation, check whether the surface is silicone or heavily textured. If it is, switch to the plastic nipple ring or rim as the label surface.
Do I need different labels for bottles vs. food containers vs. sippy cups?
No — the same waterproof label works on all smooth hard surfaces regardless of what the item is. What changes is the label size. A label sized for a narrow baby bottle will overhang the edges of a small sippy cup lid. Choose label sizes appropriate for each item's surface area. Our label sets include multiple sizes for exactly this reason — different sized items need different sized labels for a proper bond.
Can waterproof labels go in the microwave?
We do not recommend microwaving items with labels attached. The label adhesive and print are not tested for microwave use. Breast milk should always be warmed in a warm water bath rather than a microwave regardless of labels — the microwave creates hot spots that aren't safe for breast milk. For formula, remove the label or warm by another method.
How long do waterproof labels last at daycare?
With correct application — alcohol prep, full 24-hour cure, firm pressure across all edges — waterproof labels last years. Many parents report labels holding up through the entire daycare period and beyond with daily washing. The limiting factor over time is physical wear: labels applied to the top of the bottle near the nipple ring hold up better than labels applied to areas that take more direct handling and contact. Replace any label that starts showing edge lift before it peels completely — pressing down a lifting edge early extends its life significantly.
My daycare requires labels to be changed daily because of date requirements. How does that work?
Our write-on bottle labels are designed for exactly this situation. The label stays on the bottle permanently — the name is already printed on it and it doesn't need to be replaced. The daily date, ounces, and contents are written in the write-on area with a wax pencil each morning. Wipe off what you wrote the previous day before washing — the label itself stays on the bottle. The write-on area gives you a fresh surface for the next morning's information without replacing the label.
Do I need to order waterproof labels and clothing labels separately?
Yes — they're different products for different surfaces. Waterproof labels go on bottles, containers, and hard-surface gear. Clothing labels — iron-on or stick-on — go on fabric items. Your daycare will require both: labeled bottles for feeding and labeled clothing for the daily change of clothes. Our daycare label packs cover the bottles and gear. Our clothing label sets cover the daily outfits and shoes. Order both before day one.