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I'm impressed I didn't think it would be that easy to make a cement based shamrock I have been using 341 ( South Bay plastics ) 2 part acetate plastic and impregnating foam with it , the result is a hard light shamrock that is paintable and looks good the problem with it is it is very light and has to be anchored . I think it can be the base for your cement process instead of the paper base , this stuff lasts I have parts on the driveway that are over 6 years old . my 2 cents
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