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| How can I tell if the hardboard sheets I purchased at Home Depot is tempered or not? Bought sheets at different times; one is smooth on both sides, while the other is not. Iam using in my shop, and wish to use tempered hardboard only. I read once that one could tell the difference by looking at the stack-tempered has a red stripe on the ends,and a green stripe was non-tempered. I no longer see these stripes on the ends. Thanks for any thoughts. |
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Replies
hard smooth surface
Won't absorb water
doesn't scratch with thumbnail
Excellence is its own reward!
The tempered has a slick finish and is darker.
Whenever you are asked if you can do a job, tell'em "Certainly, I can!" Then get busy and find out how to do it. T. Roosevelt
Are both sides slick on tempered hardboard? The last ones are slick only on one side. the other side is rough?
Rough as in porous or rough as in pressed pattern?.
Excellence is its own reward!
The waffle face back or the smooth back depends the system that you used to make it and does not have anything to do with being tempered or not.
If I remember correctly "tempered" is coated with an oil to make it more water resistant.
I did a quick google, trying to find more details, but all of my hits are one artist supplies and discusion boards.
Seems that tempered is not recommended for art work because of the the reaction with the oil. Get back to the thread about using it to patch a ceiling and people said that the paint alligatored.
If it is hard and dark, it's tempered. If it's mushy it ain't.
I think there are only two types, hard and mush, no inbetweens.
Joe H
I don't know if this will help, but try a google search for "tempered hardboard or Masonite"
There is one link with a pdf file: http://www.panel.com
I can't get it to come up, but you'll recognize the "masonite; what is it" link and, after reading it, you'll be an expert.
BTW, oil tempering is just one method of tempering....and linseed oil is the oil of choice.
clipboards are tempered masonite..just for reference.Go Stab yourself Ya Putz! Ya think I Parked here?