How to level formica countertop warped at seam?

Hi Cathleen, so sorry you have a warped counter top. I hope this helps you fix your problem. Good luck how to level laminate countertop that has lifted - DoItYourself ...

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Feb 15, 2012 - how to level laminate countertop that has lifted ... middle sort of like warping from the weather. maybe a few mm's high and 40 or 50 mm's long.

Sometimes you can reactivate the adhesive. Place a cloth over the seam. Set an iron to warm and iron over the cloth. Keep the iron moving and check if the laminate is going down. remove the cloth and use a rolling pin, board, or a can of beans and roll over the laminate with a little pressure. If this doesn't work then you will need to use some contact cement glue and force it under the laminate and roll it down.

Every laminate countertop that I have seen with raised areas at a seam had problems bigger than needing to be reglued. The problem with laminate countertops is the surface material is glued to particle board which permanently swells when water gets into it. So. Yes, the glue probably did fail at the seam, but it was water getting in that caused the laminate material to raise up. You can try to cut the surface material off, grind back the particle board and then add a bonding filler and try to top it off with the pieces you cut off so your countertop at least somewhat looks like it did before damage. Problem is it probably will still look bad and water will keep getting in. You can grind the damage back (same process) then fill it with bondo and try to hand paint the spot. Or grind/fill and resurface the entire countertop. There are lots of options out there for this and you just might wind up with a better looking countertop than you originally had. I’ve used Spreadstone (water based, user friendly and inexpensive), with great results. Renters ruined it, then I decided to try epoxy. Epoxy is more expensive, and you really need to remove the sink (if in a kitchen) and that attached backsplash that comes on laminate tops. But when it’s done wow it is impressive. Everything needs to be done in the flat and must be level before applying the material. Watch videos at StoneCoatCountertops.com to see how it works and if you are up to it. If so you can shop around for lower pricing, but be careful to ensure you are getting a reasonable dry time for the color scheme you’ve planned and the temps in which you are working(hotter means quicker set times). Some brands set and cure faster than others and if you are just laying down a solid color a fast drying time is great but if your color scheme requires a lot of work on your part, you need a slower-setting material. Good luck!

Hello. If water has pentreated inside -beneath this seems there might be swelling of the underlayment and that would be difficult for any diy fix.

If the warp is at a seam: put cloth over the seam and then iron warm to soften the glue. Then use the tip of a paperclip or something similar to scrape out particles of the swollen particle board until it is level again. Apply water-proof clear adhesive in the space scraped out. Place parchment paper and then cloth over the seam. Iron again until smooth. Remove cloth and parchment paper. Let set 24 hours. Remove excess glue at the seam with q-tip and goo-gone.

Hello,

You will need to use, Evostick type glue, a pallet knife to spread it in and when done Put a heavy weight on top to hold it down.