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<blockquote data-quote="Satcom1" data-source="post: 605582" data-attributes="member: 302061">I got the fabric at walmart weight of fabric is not important just that it stretches in both directions. By itself it forms a nice dish but resin cured dish has wrinkles. I have problems with the plastic drop cloth leaving wrinkles and am looking for a rubber or foam sheet. If foam sheet (by itself) is used it may be possible to wet it out with resin. I noticed that my foam rollers became very hard and structurely strong after cure. I looked for foam carpet pad but didn't find what I wanted.Another approach would be to place sand over a 5 mm sheet of plastic and heat the plastic from underneath until sand pushed down the plastic into parabola. With the proper materials a 3 meter dish should be possible. Cast it flip it and lay on reinforcing. Or use the drum method that Bombed1 suggested and leave it in the cylinder.I hope others try these ideas and improve on them.I'll be away on business for a couple of weeks so no new posts.</blockquote>

[QUOTE="Satcom1, post: 605582, member: 302061"] I got the fabric at walmart weight of fabric is not important just that it stretches in both directions. By itself it forms a nice dish but resin cured dish has wrinkles. I have problems with the plastic drop cloth leaving wrinkles and am looking for a rubber or foam sheet. If foam sheet (by itself) is used it may be possible to wet it out with resin. I noticed that my foam rollers became very hard and structurely strong after cure. I looked for foam carpet pad but didn't find what I wanted. Another approach would be to place sand over a 5 mm sheet of plastic and heat the plastic from underneath until sand pushed down the plastic into parabola. With the proper materials a 3 meter dish should be possible. Cast it flip it and lay on reinforcing. Or use the drum method that Bombed1 suggested and leave it in the cylinder. I hope others try these ideas and improve on them. I'll be away on business for a couple of weeks so no new posts. [/QUOTE]

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