Gomagom Cyanoacrylate Glue for 3D Printing: Review

What Is Gomagom and Why Is It in the Mr Resin Catalog?

Gomagom is a Spanish cyanoacrylate adhesive brand — the classic "super glue" — producing formulations for scale modeling, repairs, and DIY projects. It's part of the Mr Resin catalog because it fills exactly the gap every 3D printing enthusiast eventually runs into: joining broken parts, assembling multi-piece models, and gluing supports or reinforcements without breaking the bank.

Cyanoacrylate is an adhesive that cures on contact with ambient moisture and the surfaces themselves, forming a rigid bond in seconds. It's not exotic technology or anything new — it's the same chemistry that's always existed, but Gomagom offers it in formats designed for fine detail work, which is exactly what printed parts demand.

For 3D printing, this makes perfect sense. When you split a large model into sections to fit the build plate, or a figure snaps along a weak layer line, you don't want to order industrial adhesive in bulk. You want a small tube, a precision applicator, and a fair price. That's exactly where Gomagom delivers — and why it sits alongside the other Gomagom adhesives and glues available in the store.

Which Gomagom Products Are Useful for 3D Printing?

For 3D printing, the most useful Gomagom products are the gel-formula cyanoacrylates (No. 22 Super GOM), the flexible formula (6 Super GOM) for elastic materials, and the brush-tip liquids for precise bonding. The right choice depends on whether you're gluing rigid resin, filament, or flexible parts.

The range is broad, so it helps to break it down. Here are the products that genuinely work for printed parts:

• GomaGom No. 22 Super GOM (gel, 3g): extra-strong gel-formula cyanoacrylate. The gel consistency won't run or seep into joints, making it ideal for vertical surfaces and imperfect fits. Compatible with plastic, rubber, hard woods, glass, and more.
• GomaGom 6 Super GOM (flexible, 3g): specifically formulated for flexible materials, where standard cyanoacrylate cracks when the bond flexes. The obvious choice for flexible resin parts or TPU prints.
• GomaGom No. 35 Super Instant Glue (5g, with brush): clear formula with a brush applicator. The brush gives you precise control over small surfaces and thin edges.
• GomaGom 7 Multi-Surface (20g): multi-surface formula in a bottle. According to the manufacturer, a single drop is enough — hold pressure for 15 to 30 seconds, and full strength is reached within 12 hours.
• GomaGom No. 61 Total Adhesive (20g/ml): large-bottle total adhesive, positioned as brand-quality performance at an affordable price point.

If you're bonding resin-printed parts, the No. 22 gel is the first one I'd reach for; for joints that will flex under stress, go with the 6 Super GOM.

How does Gomagom cyanoacrylate work on resin prints?

Gomagom cyanoacrylate works excellently on fully cured rigid resin parts. The smooth, non-porous surface of cured resin actually promotes a clean, fast bond. The key is making sure the part is completely washed, cured, and dry — any residual IPA or uncured resin will ruin the adhesion.

SLA/MSLA resin, once properly washed and UV-cured, leaves a dense, stable surface that CA glue grips with no issues. Since cyanoacrylate cures with ambient moisture, it sets quickly on non-porous surfaces like resin and produces a rigid bond. For figure and miniature assembly — where parts are constantly being broken down and put together — that's exactly what you want.

That said, rigidity is a double-edged sword. A CA bond on resin handles direct tension well, but it's brittle under impact: the joint can snap clean right where you glued it. This is exactly why the Nº22 gel works so well here — it fills the micro-gaps between two printed faces that never sit perfectly flush due to layer lines, and that gel layer gives the joint more body than a thin liquid alone.

Something I learned the hard way: if your resin still feels tacky, it's not fully cured, and cyanoacrylate won't grip properly. Cure the part completely before gluing.

I've glued a joint, left it overnight, and found it loose in the morning simply because the part was still off-gassing that sticky, greasy feel. Two extra minutes under UV can save you from redoing the entire assembly.

What about PLA and PETG parts?

On PLA, Gomagom cyanoacrylate bonds well because it's a rigid plastic with a receptive surface. PETG is trickier — it's a low surface energy material with a slightly waxy feel, so CA doesn't grip as well. Sand the bonding area and clean it thoroughly before gluing for best results.

PLA is straightforward. Being rigid and fairly porous between layers, cyanoacrylate soaks in and forms a solid bond without much fuss. For gluing 3D printed filament parts in PLA, any of the Gomagom liquid formulas gets the job done — go with the gel if your mating surfaces aren't perfectly flat.

PETG is trickier. Its surface has lower chemical affinity, so bonding is never as reliable as with PLA. A few tips that actually help:

• Lightly sand the contact area to create micro-roughness.
• Clean with isopropyl alcohol and let it dry completely before applying adhesive.
• Use gel instead of liquid — it fills gaps and compensates for the weaker adhesion.

ABS behaves similarly to PETG in that it's not the ideal material for CA glue, though many people go straight to acetone to weld the plastic instead. If your part is structural PETG that will be under load, cyanoacrylate isn't my first choice — for that I'd reach for epoxy, as we'll cover below.

How to properly apply cyanoacrylate glue on 3D printed parts

To get a strong bond with Gomagom cyanoacrylate, you need clean, dry, dust-free surfaces, a minimal amount of adhesive, and firm pressure held for 15–30 seconds. Full strength is reached at 12 hours according to the manufacturer. Less glue bonds better than more — excess CA cures poorly and leaves white residue.

Here's the step-by-step process I use with printed parts:

1. Prep the surfaces: make sure they're clean, dry, and free of dust. Resin parts should be fully cured; PETG parts should be sanded and degreased.
2. Apply sparingly: one drop is usually enough for a small joint. Gel is easier to control when working vertically.
3. Join and hold: bring the parts together immediately and maintain firm pressure for 15–30 seconds without shifting them. This is what creates the initial grip.
4. Allow to cure: don't stress the joint before it's fully set. Maximum strength is reached at 12 hours, so if the part will be under load, give it time.

A note on porous surfaces: on fabric or highly absorbent materials, cure time increases significantly. This is consistent with how cyanoacrylate works, and printed parts with a very porous or rough finish can behave the same way. If you need to speed up curing, CA accelerators exist — but use them sparingly, as they tend to make the bond more brittle.

Gomagom 9 Super Glue 10g | Precision Cyanoacrylate for 3D Printing

If you work with small parts in 3D printing or scale modeling, precision makes all the difference. The Gomagom 9 features a built-in brush applicator so you can place adhesive exactly where you need it — no mess, no excess. Exactly what we've been talking about throughout this article.

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When NOT to use CA glue — and why epoxy is the better choice

Gomagom cyanoacrylate isn't the best option for joints that will take impacts, heavy mechanical stress, or need to fill large gaps. In those cases, two-part epoxy wins: it creates stronger, impact-resistant bonds and performs better when mating surfaces aren't a perfect fit.

CA glue is excellent when bonding small parts with tight-fitting surfaces. Where it falls short:

• Impact and flex resistance: CA bonds are rigid and can snap cleanly under sudden impact. For functional parts that get handled frequently, epoxy holds up much better.
• Large gaps and uneven surfaces: cyanoacrylate needs close-fitting surfaces to work properly. If there's a gap, epoxy fills it while still providing structural strength.
• Flexible materials: neither standard epoxy nor CA will cut it here. If the part bends, standard CA will crack — that's where GomaGom 6 Super GOM flexible adhesive comes in.

My go-to rule is simple: CA glue for figures, model assembly, and everyday repairs. If the part is load-bearing or will take a beating, reach for epoxy. They don't compete — they complement each other, each covering the other's weaknesses.

My experience bonding 3D printed parts with Gomagom

Working with printed parts, I've seen a consistent pattern with Gomagom cyanoacrylate: on properly cured resin and PLA, it easily handles what most of us actually need — joining sections and fixing breaks. I find the gel version the most versatile for 3D printed parts, since it doesn't wick into joints and forgives surfaces that aren't perfectly flush off the printer.

CA glue won't work miracles on greasy surfaces like PETG, or on joints that are going to take real stress. For those situations, you need to sand, degrease, and — if it's a critical bond — switch to epoxy without hesitation. And if the part flexes, the GomaGom 6 Super GOM flexible formula is the only version that makes sense, because a rigid CA on an elastic material will crack on the very first bend.

As for the brand, Gomagom gets the formats right: 3 to 5 gram tubes with a precision applicator for detail work, 20 gram bottles for heavy use, and a reasonable price point. For the 3D printing hobbyist who wants a solid CA glue without overpaying, it delivers. For me, the No. 22 Gel is the one that's always in the drawer — I go through the rest of the range depending on the mood or project, but that tube I replace on a regular basis.

Frequently Asked Questions

Does Gomagom CA glue work on flexible resin or TPU?

Standard CA glue doesn't — it cracks when the bond is bent. For flexible materials, you need the GomaGom 6 Super GOM, a specific formula that retains some elasticity at the joint and won't crack when the part flexes.

How long does it take to set and fully cure?

Initial grab takes just seconds with 15 to 30 seconds of sustained pressure. Full strength is reached at 12 hours according to the GomaGom 7 manufacturer specs. On porous or very rough surfaces, curing time may be slightly longer.

How do I remove CA glue residue?

Acetone dissolves cured CA glue, but be careful — acetone can also attack certain plastics. On resin or PLA parts, test on a hidden area first. For skin contact, use warm soapy water, and never pull bonded skin apart by force.

Why does it sometimes leave white residue?

That white haze (blooming) is caused by using too much adhesive and by CA vapors curing in the air around the joint. The fix is to apply less product and work in a well-ventilated area. It's another reason to use CA glue sparingly.

Can I paint over a CA glue joint?

Yes — once the joint is fully cured and clean of residue, you can prime and paint it just like the rest of the part. If there's any blooming, sand it lightly before priming so the paint adheres evenly.

Now let's get to work (or better yet, to the resin) 😎