Cooking Oil Destroys Unsealed Non Woven
Here's a sample of an unsealed NW.
The stop watch is set at zero and we begin by pouring a cap full of Shop Rite's canola oil.
At 5.8 seconds on the clock you can see that the canola oil has already started to darken the NW material.
At 32 seconds I flipped the sample over to show that the oil is already though the back side and exhibits mottled staining.
At 56 seconds the material is a complete mess.
ANY liquid will travel through this very, very porous material and it is impossible to wash out.
At one minute and seventeen seconds you can see that the canola oil has not just stained the material, it has gathered in a liquid oil pool on the back side.
Once again, unsealed nonwoven are super porous delicates...these unsealed nonwovens have no plasticizing or vinylizing on the surface to prevent this kind of oil or moisture infiltration.
However sealed nonwovens--i.e. those with good vinyl protection--do not allow this kind of staining and are fine for kitchen and baths. If you have the sample book in your home you can do a little litmus test of the wallcovering for yourself. Windex is very good indicator of how well a material resists liquids and--unlike cooking oil--will evaporate after the test is done so you don't ruin the sample.
