How the Wicking Method Works:

Thin CA has the viscosity of water. When applied to the outside of a joint, capillary action draws it deep into the microscopic gaps between wood fibers. It cures inside the joint, creating an invisible structural bond.

1. Identify the loose joint — Wiggle the furniture. You're looking for movement between a tenon and mortise, a rung and leg hole, or any joint that's separated slightly.
2. Clean the area around the joint — Wipe with a dry cloth. Remove any finish, wax, or polish near the joint line. CA needs clean wood to wick into.
3. Apply Thin CA (100 CPS) to the outside of the joint — Use a fine applicator tip or a syringe. Put drops along the joint seam where the two pieces meet.
4. Watch it disappear — The thin CA will visibly wick into the crack. You'll see the joint darken as it soaks in. This is capillary action in real-time.
5. Apply more until saturation — Keep adding CA until it stops wicking in immediately. You want to saturate the joint completely.
6. Optional: Mist with accelerator — For instant cure, lightly spray accelerator 12" away. Otherwise, let it cure naturally for 10-15 minutes.
7. Test the repair — Try to wiggle the joint again. It should be rock-solid. If there's still movement, apply more CA and repeat.

💡 Why This Works Better Than Traditional Wood Glue

Wood glue requires surface contact and clamping pressure. If the joint is loose, there's a gap—wood glue won't bridge it effectively. Thin CA wicks into the gap, bonds to both surfaces inside the joint, and creates structural strength without disassembly or clamps.

• Chair rungs (spindles) loose in legs: The #1 use case. Apply thin CA around the rung where it enters the leg. Wicks in, locks it solid. No need to knock the chair apart.
• Loose table leg joints: Especially effective on mortise and tenon joints that have shrunk slightly over time.
• Drawer joints coming apart: Dovetails or box joints that are separating. CA wicks into the seams and locks them back together.
• Decorative trim and molding: When edge banding or applied molding starts lifting, thin CA wicks underneath and rebonds it.
• Doweled joints: Dowels that rotate or pull out slightly. CA fills the gap between dowel and hole.

⚠️ Critical: Use THIN CA (100 CPS), Not Medium or Thick

Medium and thick CA won't wick effectively. They're too viscous to flow into tight joints via capillary action. They'll just sit on the surface and create a cosmetic mess. For wicking repairs, only thin CA works.

For Hairline Cracks (Less Than 1/16"):

1. Open the crack slightly if possible — Gently flex the wood to expose the crack. Don't force it—just enough to let CA penetrate.
2. Apply Thin CA (100 CPS) along the entire crack — Use a fine applicator tip. The CA will wick into the crack via capillary action.
3. Release pressure and let the crack close — The CA is now inside the joint. It will bond as it cures.
4. Wipe away surface excess immediately — Use a cloth dampened with acetone (or CA debonder). Don't let CA cure on the surface—it's difficult to sand off.
5. Clamp if possible — While not necessary with CA, clamping ensures tight contact for maximum strength.

The Sawdust + CA Method:

1. Collect fine sawdust from the same wood — Sand the piece with 220-grit paper and collect the dust. Matching color is key.
2. Pack the crack with sawdust — Use a putty knife or your finger to press sawdust deep into the crack. Overfill slightly.
3. Saturate with Thin CA (100 CPS) — Apply thin CA liberally over the sawdust. It will soak in and darken. The sawdust becomes a hardened filler bonded by CA.
4. Add more sawdust + CA in layers if needed — For deep cracks, build up in multiple thin layers. Each layer cures in seconds.
5. Let cure 5 minutes, then sand flush — The CA-saturated sawdust sands like plastic. Work through grits (80 → 120 → 180 → 220) to blend it into the surrounding wood.
6. Refinish as needed — The repair will take stain differently than bare wood. Test on scrap first.

Use Thick CA (1500 CPS) for gaps that need bridging capability:

• Thick CA can span gaps up to 1/8" (0.125") without filler
• For larger voids: Pack with sawdust first, then cap with thick CA
• Thick CA doesn't shrink, so the repair stays flush
• Sand after 5-10 minutes of cure time

💡 Pro Tip: The Baking Soda Accelerator

For instant structural repairs: Apply thick CA to the crack, sprinkle baking soda on top. It creates an exothermic reaction and hardens instantly into rock-hard filler. This is stronger than wood itself. File/sand to shape. Perfect for edge chips and corner damage.

Regluing Lifted Veneer:

1. Gently lift the veneer edge — Use a thin palette knife or card. Don't force it—you're just creating access.
2. Clean underneath if possible — Remove old glue, dirt, or debris. A small vacuum nozzle works well.
3. Apply Thin CA (100 CPS) to the substrate — Not the veneer back. Apply to the wood surface underneath. Thin CA wicks and spreads better than medium.
4. Press the veneer down firmly — Work from the center outward to avoid trapping air bubbles. Use a roller or smooth block.
5. Wipe away squeeze-out immediately — CA can be removed before cure with acetone. After cure, you'll be sanding.
6. Clamp or weight for 10 minutes — Place wax paper over the repair, then add weight or clamps. Prevents sticking.

For small edge chips (less than 1/4"):

1. Clean the damaged edge thoroughly
2. Apply Thick CA (1500 CPS) to build up the edge. The thick viscosity creates a moldable bead.
3. Let cure 5 minutes, then file/sand to match the original profile
4. Touch up with matching wood filler or finish markers

For larger missing sections:

You'll need to patch in matching veneer. Use medium CA to bond the patch, then blend edges with filler and finish.

⚠️ Controversy: CA vs. Hide Glue for Antique Veneer

Purist furniture restorers argue that hide glue is reversible and CA is not. For museum-quality antiques, this matters. For functional furniture repair, CA provides superior strength and speed. Choose based on the piece's value and your restoration goals.

⚠️ CA Bonds Skin Instantly

Always keep acetone or CA debonder nearby. If you glue your fingers together, soak in acetone or warm soapy water and gently work them apart. Don't force it. Nitrile gloves prevent most accidents.

⚠️ Finish Compatibility

CA can create a white bloom or fogging on some finishes, especially lacquers. Test on an inconspicuous spot first. Wipe away excess CA immediately before it cures on finished surfaces.

✓ Storage Tips

CA glue has a shelf life of 6-12 months after opening. Store bottles upright in a cool, dry place. Refrigeration extends shelf life. Keep caps clean—cured CA in threads prevents opening.

Thin CA (100 CPS)

Loose joints, hairline cracks, capillary wicking

8 oz Bottle

Medium CA (700 CPS)

General repairs, veneer bonding, small gaps

8 oz Bottle

Thick CA (1500 CPS)

Gap filling, chip repair, large cracks

8 oz Bottle

CA Accelerator

Instant cure for production repairs

6.8 oz Aerosol

Loose Joints

Thin CA only
Wicking technique
No disassembly needed

Cracks & Splits

Thin for hairline cracks
Thin + sawdust for wider
Thick for gap bridging

Veneer Repair

Thin for regluing lifted veneer
Thick for edge chips
Clamp after application

Structural Repairs

CA + baking soda for instant fill
Accelerator speeds cure
Sand after 5 minutes