wax sheet

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wax sheet

Author	Message
tha_pop	tha_pop posted 13 Years Ago HOT Topic Details
Group: Forum Members Posts: 17, Visits: 877	Hi, has any one used wax sheet when making molds e.g. making a cover for a part. after applying wax sheet to the part I applies some wax release hoping after several wax applications and polishing i will apply PVA but for some wired reason the wax reacted with the sheet and caused it to become sticky and gummy which ended up messing the smooth texture of the wax sheet , has anyone had this experience and how did they overcome this issue, lastly maybe my work flow was flawed in a way and it will be great if you could point me in the right direction and share the correct steps you follow leading to a perfect mold.
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SebRS	SebRS posted 13 Years Ago HOT Post Details
Group: Forum Members Posts: 29, Visits: 558	Hello, I used it too for an engine cover mould. Same reactions, i waxed several coat of wax, PVA at last. The sheet wax was sticky to the mould. I used the Green Epoxy gel coat and i didn't find a fix to this problem or what i did wrong. Regards, Seb.
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Joe	Joe posted 13 Years Ago HOT Post Details
Group: Forum Members Posts: 310, Visits: 1.5K	Hi, Here is what I did when I had to work with wax sheet: Once the sheet was applied, I covered it with aluminium tape. Its very thin, and with meticulous placement (aka avoiding overlaps) you'll have minimal sanding work to do on your mold once you're done. Hope it helps. A $1000 electronic device will always protect a 10 cents fuse
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tha_pop	tha_pop posted 13 Years Ago HOT Post Details
Group: Forum Members Posts: 17, Visits: 877	thanks, that sounds like a good option
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ajb100	ajb100 posted 13 Years Ago HOT Post Details
Group: Forum Members Posts: 346, Visits: 4.4K	im undertaking a project which i have used this thread for inspiration. as my final piece will essentially be a very large flat area, any uneveness would show instantly so i wanted to minimise any sanding/correction in the mould. my plan is to do as you have suggested with the aluminium tape but then key it and put a thick layer of paint on which will be flatted and polished to give the gloss finished required thought this idea may have been of some use to you
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Matthieu Libeert	Matthieu Libeert posted 13 Years Ago HOT Post Details
Group: Forum Members Posts: 955, Visits: 3.4K	If I'm understanding everything well, I'm not sure paint will bond well on aluminium foil, pollishing it will rip it in pieces I guesse... just giving my opinion on what I understand could be i'm totally not thinking the same way you are Matthieu Libeert Founder MAT2 Composites X Sports website: www.mat2composites.com
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r0bsk1	r0bsk1 posted 13 Years Ago HOT Post Details
Group: Forum Members Posts: 38, Visits: 307	Use brown packing tape instead of the ali tape. Resin will not stick to the packing tape. Its self releasing and does not need wax/PVA
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wozza	wozza posted 13 Years Ago HOT Post Details
Group: Forum Members Posts: 688, Visits: 5.4K	I use wax sheet quite a lot, this is my method. 1: Apply wax/release agent to the part/mould ( I use EC Easylease) 2: Lay the sheet wax (sticky side down) over the part/mould. If the part is concave gentle heat via a heat gun will help the sheet fall into the mould. Use gentle finger pressure to coax the sheet into the contours. 3: No release agent is required on the wax sheet for obvious reasons. 4: Apply gel coat. I spray the gel coat however it can be applied by brush but be careful not to get brush strokes in the wax. 5: Once the gel coat is cured apply your chosen mould material. I use the EC Uni-Mould system. 6: Once cured split the mould from the part. The wax sheet should be stuck to the mould not the part. 7: The wax sheet can now be scraped off with a plastic scraper. 8: A polish and the mould is ready for use. Hope the attached photos help. Warren. Carbon Copies Ltd
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ajb100	ajb100 posted 13 Years Ago HOT Post Details
Group: Forum Members Posts: 346, Visits: 4.4K	matthieutje65 (10/09/2012) If I'm understanding everything well, I'm not sure paint will bond well on aluminium foil, pollishing it will rip it in pieces I guesse... just giving my opinion on what I understand could be i'm totally not thinking the same way you are High quality ally tape is just very thin aluminium so can easily be keyed up and Painted just like any other form of aluminium. If you're careful with it and don't go crazy, it can be sanded to give a level surface, still has the rough surface but you can't feel ridges. I use this method to to seal foam plugs with good results
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