When the moisture is gone the mat dries out and will have cut marks and dull your blade.
Cutting mat warp repair.
Another site suggested putting it on flat sheet and placing in an oven at 200 degrees fahrenheit.
They wrote that once a mat has been warped it can t be flattened.
Have you ever warped your self healing mat with heat.
I have one old mat soaking now.
This will cause to to slowly warm and the mat should then lay back flat.
Add a solution of cup white vinegar per gallon of cool water and let it soak for 15 to 20 minutes.
You can also try using an iron to fix a warped cutting mat.
Another great way of how to fix a warped cutting mat is by ironing it.
Make sure the water is cool.
The mat will be soft and be like new again.
However when the mat warps from improper storage or from being overheated it loses most of that usefulness.
Soak the mat in room temp water for about and hour let dry.
To soak your mat place it in a bathtub or container that is large enough so your mat can lie flat.
Warm or hot water can warp your mat.
Cover the mat with two layers of towels and set your iron to its lowest heat.
Place the mat and towel on an ironing board or iron proof surface.
But frisk another manufacturer of cutting mats say to leave the mat in direct sunlight or warm water for a period of time and it will resume its original shape.
That s all you have to.
If it doesn t do so on its own once it is good and warm you can place heavy objects on it like books and leave them there until the mat has cooled.
You might think this method is a little outrageous but it definitely works.
Here s how to fix that problem.
Start by using a damp cloth or towel and placing it over your cutting mat.
If you have a self healing cutting mat it needs to be re hydrated to stay self healing.