Super Gom Precision GomaGom 2 3g | Cyanoacrylate Pen for 3D Printing

The Super Gom Precision Gomagom 2 is the maximum precision cyanoacrylate in the Gomagom family: 3 grams of clear adhesive in a pen-style applicator with an extra-fine tip, designed for work where even a single normal drop of super glue is too much material. It's the format jewelers use to set gems in mounts, scale modelers use to attach photo-etched parts and micrometric details, and makers use for tiny bonds on 3D printed parts with ultra-fine details. The manufacturer itself illustrates the product with the image of a gemstone ring — that's exactly its natural use case. For standard-sized 3D printed parts or general assembly work, you'll be better served by the Gomagom 9 (brush applicator, 10 g) or the Gomagom 7 (conical nozzle, 20 g).

Why the pen format changes the game for micro-precision work

There's a level of detail where both a conical nozzle and a brush applicator are simply too large. Gluing a 2 mm gem into a prong setting, attaching an N-scale photo-etched train part, securing a rigging line to a naval model mast, repairing a broken glasses arm, or joining a 3D printed part with sub-millimeter details — these are all situations where the problem is NOT the bonding strength of the cyanoacrylate (any brand will hold), but application control.

The Gomagom 2 solves this with a pen-style applicator and extra-fine tip. The application area is reduced to approximately half a millimeter, allowing you to deposit a literally pinhead-sized dot of adhesive with ease. You apply exactly where you need it, without encroaching on adjacent parts or contaminating delicate finishes.

Typical use cases

The Gomagom 2 excels in scenarios where application control matters more than adhesive volume:

Jewelry: setting gems, pearls, and decorative elements in mounts. The packaging itself highlights this as the primary use case. The extra-fine tip deposits the minimum necessary amount without the adhesive creeping onto the visible face of the gem or the mount.

N, Z, HO, and similar scale modeling with micrometric details. Attaching railings, photo-etched parts, rigging threads, electrical connections, and cabin details on scale models where individual elements are on the order of a single millimeter.

3D printed parts with ultra-fine details. Assembly of sub-millimeter geometries found especially in high-resolution UV resin printers (Mono X 4K, Saturn Ultra, Photon Mono M5s, etc.). Bonding tiny neodymium magnets, printed connectors, articulated model joints, and more.

Repairs on small, delicate objects. Glasses arms, handles on fine porcelain cups, non-mechanical watch parts, corners of small picture frames, toys with tiny components.

Small-scale figure modeling. 28–32 mm miniatures have the kind of detail that the Gomagom 9 brush handles well; for smaller scales (15 mm, 6 mm, historical scales), the Gomagom 2 pen offers significantly more control.

When to choose Gomagom 2, 9, or 7

We carry three cyanoacrylates from the Gomagom family, organized by precision level:

• Gomagom 2 (this one, 3 g, pen applicator): maximum precision. Jewelry, photo-etched parts, fine-scale modeling, 3D printed parts with sub-millimeter details. For when even a brush applicator is still too coarse.
• Gomagom 9 (10 g, brush applicator): moderate precision. Wargaming miniatures, fine-detail assemblies, small 3D printed parts. The go-to standard for modelers.
• Gomagom 7 (20 g, conical nozzle): general use. Large 3D printed part assembly, workshop repairs, everyday household use.

Experienced makers and modelers typically end up keeping all three in the drawer, each one reserved for its own type of work. They're not substitutes for each other — they're complementary tools.

How to Use

The process is standard for any cyanoacrylate adhesive — the pen applicator simply changes how you apply it:

1. Clean, dry surfaces. Both parts to be bonded must be free of dust, grease and residue. For jewelry work, wiping the setting and the gem base with isopropyl alcohol before bonding noticeably improves adhesion.

2. Apply a minimal amount of adhesive with the pen tip. With cyanoacrylate, less is more. On pieces small enough to warrant using this format, you'll typically need just a fraction of a drop. The extra-fine tip deposits the minimum effective amount.

3. Join and hold for 15–30 seconds. This is the standard initial cure time for cyanoacrylate. Keep the pieces in position without moving them during this time. For jewelry with small gems, precision tweezers are very useful for holding the position without touching the visible face.

4. Full strength reached in around 12 hours. For pieces that will be handled or worn (rings, earrings), it's best to wait until the next day before subjecting them to full stress.

As with any cyanoacrylate, avoid skin contact when bonding pieces. If your fingers get stuck together, use GomaGom Adhesive Remover 21.

Material Compatibility

According to the manufacturer's official safety data sheet, GomaGom 2 bonds:

• Rigid plastics (including PLA, PETG, ABS and cured UV resin)
• Ceramic and porcelain
• Rubber and silicone
• Hardwoods
• Marble
• Metals (gold, silver, steel, brass — jewelry settings)
• Mother of pearl
• Ivory
• Glass

NOT compatible with: polyethylene, polypropylene, PTFE/Teflon and highly flexible plastics. For 3D printed parts, we recommend properly washing and curing UV resin pieces before bonding, and wiping with isopropyl alcohol to remove any monomer residue.

Technical Specifications

• Type: liquid cyanoacrylate adhesive (ethyl 2-cyanoacrylate)
• Net content: 3 g (legally declared with ℮ symbol)
• Applicator: pen with extra-fine tip for maximum precision
• Appearance: colorless / transparent when dry
• Relative density: 1.05
• Fixture time: 15–30 seconds of pressure
• Full strength: approximately 12 hours
• Typical applications: jewelry (gems in settings), scale model photo-etched parts, 3D printed parts with micrometric detail, precision repairs
• 3D printing compatibility: cured UV resin, PLA, PETG, ABS (sub-millimeter detail)
• Other materials: rigid plastics, ceramic, porcelain, rubber, hardwoods, marble, metals, mother of pearl, ivory, glass
• NOT compatible with: polyethylene, polypropylene, PTFE/Teflon, flexible plastics
• Storage: between 5 and 25 °C, in a cool, dry place away from direct sunlight
• Safety: skin and eye irritant — avoid contact with skin and eyes. Contains hydroquinone (stabilizer) which may cause allergic reaction
• Manufacturer: DUNSA (GomaGom brand, Spain)
• References: SKU GG16030

Why Buy It from Mr Resin

This isn't the cyanoacrylate you'll go through every week — it's the one that lives in the drawer for those specific moments when you're setting a tiny gem, assembling an N-scale model kit or repairing something with very fine detail. For those moments, having it on hand is the difference between finishing the job in 5 minutes or smearing the piece trying to apply super glue with a toothpick. If you're already placing an order for resin, filament or paint, adding it to your cart ships in the same package at no extra cost. Free shipping to mainland Spain on orders over 79 €.

Mr Resin has been serving over 5,000 makers across Spain, Portugal, and France for years. Our catalog is built around what the community asks for: printers and materials as the core, plus the workshop consumables that become part of everyday use.

Frequently Asked Questions

Can it be used to glue gems in jewelry?
Yes, it's one of its best use cases — the manufacturer's own packaging highlights it as the primary application, showing a ring with a stone. The extra-fine tip deposits the minimum amount of adhesive without it spreading onto the visible face of the gem or the rest of the setting. For silver or gold jewelry, we recommend cleaning the surfaces with isopropyl alcohol beforehand to improve adhesion.

How does it differ from the GomaGom 9 with brush?
In the application area. The GomaGom 9 brush deposits a zone of around 2–3 mm — perfect for wargaming miniatures and standard detail assemblies. The GomaGom 2 pen deposits a zone of approximately half a millimeter — necessary for jewelry, fine-scale modeling photoetch parts, and printed pieces with sub-millimeter details. If your work is at the level of 28–32 mm scale miniatures or standard printed part assemblies, the 9 is enough. If you work below that level of detail, the 2 is the right choice.

Does it work on UV resin printed parts?
Yes, it works like any cyanoacrylate on cured UV resin. It's particularly useful for assembling printed parts with ultra-fine details only achievable with high-resolution SLA printers. We recommend that parts are properly washed and cured, and that contact surfaces are wiped down with isopropyl alcohol before applying.

Why only 3 g — isn't that too little?
Because for the intended uses of this format — jewelry, photoetch, micro-precision work — consumption per job is minimal. A single jewelry application may use the equivalent of one-tenth of a drop. A 3 g tube can last dozens or even hundreds of pinpoint applications before needing to be replaced. If your use requires more volume because you're working with larger parts, this format isn't the right fit — take a look at the GomaGom 7 in 20 g.

How long does the tube last once opened?
Like any cyanoacrylate, once opened it begins to degrade through absorption of ambient moisture. Stored correctly between 5 and 25 °C — in a cool, dry place away from direct sunlight (as explicitly stated in the safety data sheet) — a tube can last many months with occasional use. Always close the applicator tightly after each use.

What if I get my fingers stuck together?
Standard procedure for any cyanoacrylate: do not pull apart by force (it can tear skin), apply GomaGom 21 Adhesive Remover to the bonded area, wait 2–4 minutes, and gently separate. Any residue can be removed by washing with soap and water. If the situation is serious (eyes, open wounds, children), seek medical attention.