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Original Gorilla Glue is not a good choice for laminate countertops. It is not a contact cement, which is the best choice for this material, and it does not explicitly state that it should be used on laminate. Perhaps the best reason to avoid using Gorilla Glue on laminate is that it expands three times its original size, which could lead to your laminate being pushed away from the countertops.

The frequency for sealing granite countertops depends on several factors, including the type of sealant used, the color of the granite, and how heavily the countertops are used. As a general guideline, resealing is often recommended every 12 to 18 months, but some sources suggest it could be as often as every few months or at least once a year.

The type of sealant is a major factor: water-based sealants may need reapplication every six months to a year, while more durable solvent-based sealants can last for five to 10 years. Additionally, factors like heavy kitchen traffic, frequent use of acidic cleaners, and lighter granite colors may require more frequent sealing to prevent staining.

To determine if your countertops need resealing, you can perform a simple water test. Place a few drops of water or a wet paper towel on an inconspicuous area of the granite. After 10 to 15 minutes, check the spot. If the water has beaded up, the seal is still intact. If the water has been absorbed and darkened the stone, it's time to apply a new coat of sealant. You can choose to seal the granite yourself or hire a professional to ensure it's done correctly.

Butcher block countertops typically last around 20 years, and sometimes longer, with proper maintenance. This lifespan is comparable to granite and longer than laminate. Key maintenance tasks include regular cleaning after every use and resealing, ideally once a month. You can also sand and resurface the countertops to remove imperfections like deep scratches, stains, dings, and scorch marks. The longevity is also affected by the thickness of the wood strips used in its construction; thicker strips are generally more durable.

If you are building a laminate countertop from scratch, instead of buying premade laminate countertops, you can use particle board underneath the laminate. You will need to use a sheet of particle board for the substrate, along with four-inch strips underneath the edges. For proper installation, make sure that any seams are level and use a sander as necessary before installing the laminate.