Best 3D Print Adhesion Aids for Beginners

Updated 2026-10-30

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Quick answer: Fix bed leveling and Z-offset first. Then match the aid to the surface: a textured PEI sheet often needs no aid for PLA, glass usually likes a thin glue stick coat, and PETG on smooth PEI benefits from glue as a release layer. In our labelled example, glue costs about $0.10 per print.

Fix leveling before buying an aid

First-layer adhesion problems are almost always caused by a misaligned bed or incorrect Z-offset. Before buying any adhesion aid, ensure your printer's bed is perfectly flat and the nozzle is at the correct height.

Here's how to check:

Use a feeler gauge or business card to measure the gap between the nozzle and the bed at multiple points.
Adjust the bed screws or Z-offset in your printer's firmware until the gap is consistent across the entire bed.
Print a test square or brim to confirm the first layer sticks evenly.

Even the best adhesion aid won't fix a poorly leveled bed. A misaligned bed can cause warping, poor layer adhesion, or failed prints. Once leveling is correct, you can choose an adhesion aid that matches your bed type and filament.

Adhesion aid classes: the criteria table

Adhesion aids fall into four main classes. All prices below are labelled planning assumptions, not quotes:

Class	Best for	Watch out for	Example planning numbers
Glue stick	Glass beds; release layer for PETG on smooth PEI	Residue builds up if never washed	$3 stick for 30 prints = $0.10 per print
Liquid adhesive	Even coats on glass or smooth sheets	Check the label for bed compatibility	$8 bottle for 100 prints = $0.08 per print
Painter's tape	PLA on unheated or low-temperature beds	Must be replaced when torn	$5 roll for 50 prints = $0.10 per print
Textured PEI sheet	PLA and PETG with no aid at all	Upfront cost; keep it free of skin oil	$40 sheet, no recurring cost per print

Use these numbers only to compare classes. Your real cost depends on coat thickness and how often you wash the bed.

Matching the aid to the bed surface

Your bed surface decides most of the answer:

Glass: a thin glue stick or liquid adhesive coat is the classic pairing. Clean with warm water and dish soap between coats.
Textured PEI: usually no aid for PLA or PETG. Wipe with isopropyl alcohol to remove fingerprints.
Smooth PEI: PLA usually sticks directly. PETG can bond too strongly, so many makers suggest a glue stick as a release layer.
Unheated beds: painter's tape is a simple aid for PLA.

Always follow the bed surface maker's guidance on what is safe for the surface.

Matching the aid to the filament

Different filaments need different help:

PLA: sticks to most clean surfaces. Glue stick on glass or tape on an unheated bed both work.
PETG: sticks very hard. Use glue as a release layer on smooth PEI or glass.
ABS and ASA: need the bed temperature on the maker's label and an enclosure; glue stick or liquid helps on glass.
TPU: often grips well on its own; a light glue coat can make removal easier.

For anything else, check the filament maker's recommended bed surface and temperature.

Cost per print and clean-up

Using the planning numbers from the table:

Glue stick: $3 / 30 prints = $0.10 per print. Washes off with warm water.
Liquid adhesive: $8 / 100 prints = $0.08 per print. Clean-up per the label, often warm water.
Painter's tape: $5 / 50 prints = $0.10 per print. Peel off and replace.
Textured PEI sheet: $40 once. After 400 prints that is $0.10 per print and falling.

Over 200 prints, glue costs $20 and liquid costs $16. The difference is small; pick the one you will actually keep clean.

How to pick your first aid

Check your bed surface: glass, smooth PEI, textured PEI or bare/unheated.
Check your filament: PLA, PETG, ABS/ASA or TPU.
Start with no aid on a clean, leveled bed. Add an aid only if the first layer still lifts.
Pick the cheapest matching class from the table.
Test with a single-layer square in each corner before a long print.

For example, glass and PLA: start with a thin glue stick coat. Textured PEI and PLA: start with nothing.

Worked example: Choosing an adhesion aid for a glass bed and PLA

Let's say you have a glass bed and use PLA filament. You want to choose between a glue stick and a liquid adhesive. Here's how to calculate the cost:

Glue stick cost: $3 for 30 prints = $0.10 per print.
Liquid adhesive cost: $8 for 100 prints = $0.08 per print.
Over 200 prints:

- Glue stick: $0.10 x 200 = $20. - Liquid adhesive: $0.08 x 200 = $16.

Difference: $20 - $16 = $4.

So, using a liquid adhesive saves $4 over 200 prints. However, liquid adhesives can be messier to clean up. If you prefer simplicity, a glue stick may be better despite the higher cost.

Final check: The math confirms that liquid adhesive is cheaper per print, but the choice depends on your preference for clean-up and budget.

Common mistakes

Not fixing leveling first: Even the best adhesion aid can't fix a misaligned bed.
Using the wrong aid for the filament: Check the filament maker's guidance; PETG can bond too hard to smooth PEI without a release layer.
Overusing adhesive: Thick coats leave lumps that lift the first layer; a thin even film is enough.
Ignoring manufacturer guidelines: Some PEI beds require specific cleaning solutions to avoid damage.
Not cleaning the bed: Residue from glue sticks or liquid adhesives can build up over time, reducing adhesion.

Who this is not for

This guide is not for users who need industrial-grade adhesion solutions, professionals with specialized printing needs, or those using bed types not covered here (e.g., specialty coated plates with their own maker rules). It's designed for US beginners using common desktop FDM printers and standard filaments like PLA, PETG, and ABS.

Labelled planning example: textured PEI vs glue over a year

Planning assumptions, not quotes: 300 prints a year, glue at $0.10 per print, a textured PEI sheet at $40 that lasts the year.

Glue for a year: 300 x $0.10 = $30.
Textured PEI for a year: $40 once.
Year two: glue is another $30, while the sheet keeps working until it wears.

Final check: 300 x 0.10 = 30. Glue wins in year one by $10; the sheet usually wins after that, and it saves the cleaning time every print.

First-layer troubleshooting before you buy anything

Only one corner lifts: re-level that corner; an aid will not fix a tilted bed.
Whole first layer fails to stick: lower the Z-offset in small steps and wipe the bed with isopropyl alcohol.
Lines look round, not squished: the nozzle is too high.
Nozzle scrapes the bed: the nozzle is too low.
Parts stick too well: add a thin glue coat as a release layer, especially with PETG.

Change one thing at a time and print a single-layer test square in each corner after every change. Write down what worked so the next filament swap is faster.

FAQ

Q: Can I use the same adhesion aid for all filaments? A: Not always. PLA, PETG, ABS and TPU behave differently on each surface, so check the filament maker's and bed maker's recommendations.

Q: How often should I replace my glue stick? A: Replace it when it runs out. In our planning example one stick lasts about 30 prints, but thin coats can stretch that a lot.

Q: Is liquid adhesive easier to clean than glue sticks? A: It depends on the product. Many water-based liquids and washable glue sticks both clean up with warm water; follow the label.

Q: What's the best aid for a heated bed? A: Most beginner beds are heated, and washable glue sticks and liquids are widely used on them. Painter's tape suits PLA on a cool or low-temperature bed.

Q: Can I use painter's tape on a PEI bed? A: Usually there is no need. Textured PEI is designed to grip filament directly, and tape adds a step without a clear benefit.

Use our filament cost calculator to estimate how much your adhesion aid will cost per print. This tool helps you compare options and choose the best one for your budget and printer setup.

Related guides

Questions about this guide? Email hello@charlandandco.com.