Adhesives and Sealants — FAQ
What's the difference between CA glue and traditional wood glue?
CA (cyanoacrylate) super glue cures almost instantly through moisture reaction, creating rigid bonds ideal for small repairs. PVA wood glue (like Titebond) dries by evaporation, forming flexible bonds that are stronger for large wood-to-wood surfaces and better withstand wood movement.
Can I use super glue on outdoor furniture repairs?
Standard CA super glues break down with UV exposure and moisture. For outdoor use, choose waterproof PVA wood glue (Titebond III) or specifically UV-resistant CA formulas. Regular super glue works temporarily but fails within months outside.
How do I prevent super glue from drying out in the bottle?
Store tubes upright with caps tightly sealed. Refrigerate unopened bottles to extend shelf life. For opened CA glue, squeeze air out before capping and store in an airtight container with silica gel. Anti-clog caps help but don't eliminate evaporation completely.
Is gel or liquid super glue better for woodworking?
Gel formulas excel for repairs and vertical applications—they don't run and fill minor gaps. Liquid penetrates deeper into tight joints and spreads thinner for invisible glue lines. Keep both: gel for general repairs, liquid for precision joinery on perfectly mated surfaces.
How long should I clamp wood when using super glue?
CA glue requires only 30-60 seconds of firm pressure to set. However, hold for 2-5 minutes for full strength development. Unlike PVA glue, you don't need extended clamping—super glue achieves 80% strength in the first minute. Use accelerator for instant bonds.
Can I stain or paint over super glue on wood?
CA glue creates a hard, non-porous plastic that rejects stain, leaving visible spots. Sand thoroughly to level the surface, then seal with shellac before staining. For invisible repairs, use PVA wood glue which accepts stain similarly to wood fibers. Paint adheres to sanded CA glue better than stain does.
