Bob Smith Industries Insta-Set Super Glue Accelerator 2 fl oz - Fast Drying Liquid Activator for Cyanoacrylate Adhesives Review (2026)

What Insta-Set does at the bench

Insta-Set is an accelerator, not a glue itself, meant to be used alongside cyanoacrylate adhesives such as Bob Smith Industries own Insta-Cure line. Once CA glue is applied and parts are pressed together, a light spray of Insta-Set on the seam cures the glue in about 6 to 8 seconds according to the manufacturer, letting a builder move on to the next step instead of holding a joint closed while it sets. This is especially useful on small or awkward parts, like antennas, photo-etch details or tiny resin bits, where holding a joint steady for a full CA cure time is impractical. The manufacturer also markets it as a cleaning agent for adhesive residue and scuff marks, giving it a second use beyond just curing joints.

Surface compatibility and format

The manufacturer states Insta-Set is compatible with all surfaces that cyanoacrylate glue bonds to, including clear plastic and white foam, which matters for builders working with canopy parts or foam-based scenery where some accelerators can cause fogging or damage. It ships in a 2 fluid ounce pump spray bottle, one of three formats Bob Smith Industries sells this accelerator in alongside a larger 8 ounce refill and an aerosol can, so the pump size reviewed here is the smallest and most travel-friendly option. The pump format gives more direct control over where the mist lands compared with an aerosol can, which matters when working close to a model's surface.

Overspray and finish concerns

Accelerators like this one work by shifting the surface chemistry of CA glue to speed up curing, and a side effect common to this category of product is a white or hazy frosting where overspray lands on bare or lightly painted plastic. Builders generally manage this by spraying only the immediate area of the joint, masking off nearby painted surfaces, or applying the accelerator to a cotton swab or brush tip rather than spraying it directly when working near a finished paint job. Because the bottle is a pump rather than a fine-mist aerosol, it is a little easier to direct the spray precisely than an aerosol can, but it still benefits from a steady hand and a bit of distance control.

Working alongside CA glue in a kit

Since Insta-Set has no adhesive properties on its own, it is only useful to builders who are already using cyanoacrylate glue for at least part of an assembly, whether that is Bob Smith Industries own thin and medium Insta-Cure formulas or another brand's CA. Builders who rely mainly on plastic cement or two-part epoxy for their kits will not get much use from this product, since it has no effect on those adhesive types. The strawberry scent Bob Smith Industries adds to the formula is a minor but noted difference from some competing accelerators that carry a stronger chemical smell, though ventilation is still recommended given the product remains a chemical accelerant.

Verdict and who should pick something else

For builders regularly using CA glue who want joints to set in seconds rather than minutes, Insta-Set is a dependable, widely stocked accelerator that matches our score of 8.4 out of 10, backed by a pump format that is easy to control on small areas and a formula that pairs naturally with Bob Smith Industries own glues. It is a weaker fit for anyone doing delicate work on clear canopies or finished paint right next to a joint, where overspray frosting is a real risk without careful masking or spot application. Builders who want a lower-mess alternative might consider dabbing accelerator onto a brush or swab rather than spraying directly, or stepping up to the aerosol only when covering larger assemblies.

Frequently asked questions