Hi, I cast a piece in ecoflex 30 last week and had serveral failed attempts at seaming possibly due to "latex free" sponges (used to texture) contaminating my work, plus the patch that did set up did not stick. I had cleaned it thoroughly with acetone. Now a week has passed. Is it possible to clean with alcohol or some other substance and have my seam and paint stick or do I need to start all over since the 72 hr cure window closed?
Question 2: is there a tutorial on silicone seaming? I can't find one. Any help is much appreciated!