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Collage of metal

The assembly of two pieces of metal can be done by gluing, with single-component glue, quick setting, suitable for copper, aluminum and steel, or two-component epoxy glue, usable for most materials.

Necessary material

  • Emery cloth
  • Cloth
  • Trichlorethylene
  • 2-component epoxy adhesive
  • Wooden spatula
  • Clamps
  • Alcohol to burn
  • Fast setting glue

Steps

  1. Preparation of the support
  2. Two-component epoxy glue bonding
  3. One-component adhesive gluing

Preparation of the support

Clean surfaces to stick

Clean surfaces to stick

1. Start by cleaning the surfaces to be glued, here a part of plate and an aluminum profile. Pick them with emery cloth.

Degrease the surface by rubbing with a cloth soaked in trichlorethylene

Degrease the surface by rubbing with a cloth soaked in trichlorethylene

2. Degrease them by rubbing them with a cloth soaked in trichlorethylene.

Two-component epoxy glue bonding

Mix the adhesive and its hardener

Mix the adhesive and its hardener

1. On a wooden board, or glass, place the adhesive and its hardener in equal parts. Mix them with a small wooden spatula.

Spread the mixture on both surfaces to be assembled

Spread the mixture on both surfaces to be assembled

2. Spread the mixture thus obtained on the two surfaces to be assembled.

Keep the two glued parts in contact with two clamps

Keep the two glued parts in contact with two clamps

3. Using two clamps, hold the two glued parts in contact. Wipe off the glue with a cloth lightly moistened with alcohol. Do not wait for drying; hardened, the burrs would be much more difficult to eliminate.

The curing time of the adhesive varies according to the ambient temperature

The curing time of the adhesive varies according to the ambient temperature

4. This glue cures in 24 hours at a temperature of 20° C, in 3 to 4 hours at 40° C (temperature obtained by placing the assembly on a central heating radiator for example), and in 45 minutes at 80° C (oven temperature).

One-component adhesive gluing

Apply the glue on one of the pieces to be assembled

Apply the glue on one of the pieces to be assembled

1. To assemble with a single-component, quick-setting adhesive, surfaces must be prepared as before, by stripping them with emery cloth and degreasing them with alcohol. Unscrew the tip of the glue tube and its cap; pierce with a pin, then replace the applicator tip. Apply the glue, in a very thin layer, on one of the pieces to be assembled.

Keep both parts in contact with clamps

Keep both parts in contact with clamps

2. Hold both parts in contact, using clamps, or by hand. Indeed, this product takes in 10 to 20 seconds. Wipe off excess glue with a cloth soaked in solvent. A trick for gluing decorating metals: moisten with precision the edge of the surface to be glued, the burrs will not take on the humidified metal.

(photos / visuals: © DIY-Prod, except special mention)

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