Plastic laminates are most commonly used for countertops and cabinet parts. Formica is a brand name of plastic laminate. Laminate is typically mounted using contact cement. Changes in humidity and/or temperature will cause the highly flexible adhesive to contract and swell, which, over time, can cause it to release. This will result in a Formica edge or top with a lifted section that gets progressively looser and begins to peel away from the substrate. The old glue will need to be removed and new contact cement applied.
Things You'll Need
- Lacquer thinner
- Putty knife
- Contact cement
- Heat gun
- Rubber mallet
- J roller
Pull the edge of the peeling Formica away from the surface gently to access the space behind. Prop it away from the surface wit a wooden dowel or pencil.
Apply lacquer thinner or acetone from a plastic squeeze bottle onto the face behind the Formica and back of the Formica. Allow this to work on the adhesive for 30 seconds to soften it.
Scrape the softened adhesive from the back of the Formica and the surface behind with a flexible putty knife. Wipe the used adhesive from the putty knife with a clean rag dampened with acetone.
Leave the dowel propping the piece away from the surface to allow the surfaces to dry completely to prevent the new adhesive from being softened.
Apply a medium-heavy coat of contact cement on the back of the laminate and the surface behind the laminate, using a small paintbrush.
Adjust the setting on your heat gun to medium and blow warm air behind the loose laminate for 15 to 20 minutes until the contact cement is completely dry to the touch.
Remove the dowel from behind the loose laminate and press the laminate down, so that the two glued surfaces meet. Press the laminate into place with a J roller, working from the inside out.
Pound along the outside edge with a rubber mallet to seal the laminate fully and press out any excess air underneath it.
Use the acetone-dampened rag to remove any excess contact cement from the face of the laminate. Double-check the edges of the laminate to ensure that the edges are fully pressed down, once the excess glue is removed, and tap it in place with the mallet if needed.
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