Quick answer: There is no difference. Cyanoacrylate, CA glue, and super glue are three names for the same adhesive. “Cyanoacrylate” is the chemical name, “CA glue” is what woodworkers and hobbyists call it, and “super glue” is the everyday consumer name. The real differences are between products: viscosity (thin, medium, thick), purity, and additives, not between the names.
Why the same glue has three names
Super glue, cyanoacrylate, and CA glue all describe the same family of fast-bonding cyanoacrylate adhesive. Different groups simply adopted different names. Woodworkers, model-builders, and serious hobbyists say “CA glue” or “instant glue.” Industrial users say “cyanoacrylate.” People who buy it at the drug store or hardware store for occasional home use call it “super glue.” Same chemistry, different audiences.
Cyanoacrylate bonds by reacting with trace moisture, both on the surfaces being joined and in the air, which is why it grabs in seconds without clamps or mixing.
Where products genuinely differ
The meaningful differences are not in the names but between formulas:
- Viscosity. Thin CA wicks into tight joints and sets fastest; medium is a versatile general-purpose choice; thick fills gaps and gives you a few seconds to position parts.
- Purity and freshness. A high-quality, fresh CA bonds stronger and lasts longer in the bottle than a cheap one.
- Additives. Rubber-toughened and gel formulas exist for parts that flex or take impact.
Strengths and limits
Cyanoacrylate forms very strong, rigid bonds and is highly versatile, working on wood, glass, ceramics, metals, and many plastics and rubbers. Because it is rigid and somewhat brittle, it is weaker under heavy impact or peel, and is not the right choice for critical structural joints under high shear, where an epoxy or polyurethane is better suited.
Tips for using CA glue
- Surface prep: work with clean, dry, slightly rough surfaces for the best bond.
- Use sparingly: a single drop covers a surprising area; too much actually weakens the bond.
- Wear gloves: CA bonds skin readily.
- Store it sealed and cool: wipe the nozzle, cap tightly, and keep it cool to extend shelf life.
Frequently asked questions
Is cyanoacrylate the same as super glue?
Yes. They are the same adhesive. “Super glue” is the consumer name for cyanoacrylate.
Is CA glue the same as super glue?
Yes. “CA” is short for cyanoacrylate. CA glue is often sold in higher-performance, multiple-viscosity versions for makers.
Is Krazy Glue the same as cyanoacrylate?
Yes, Krazy Glue is a brand of cyanoacrylate. For a deeper explainer, see what is cyanoacrylate.
Super glue vs epoxy: which is stronger?
For tight, rigid joints CA is excellent and far faster. For load-bearing joints that flex or take impact, a two-part epoxy is tougher.
How do I remove cyanoacrylate?
A non-acetone CA debonder softens it gently. See how to remove super glue.
Choosing the right CA glue
Match the viscosity to the job: thin for infiltrating, stabilizing, and high-gloss finishes; medium for general repairs and close-fitting parts; thick for gap-filling and parts that need positioning time.
Professional-grade cyanoacrylate in every viscosity.
Starbond makes high-purity CA glue trusted by woodworkers, makers, and pros. Explore Starbond CA glue.
