Making this part in CF, no mould

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Making this part in CF, no mould

Author	Message
Sol	Sol posted 11 Years Ago HOT Topic Details
Group: Forum Members Posts: 8, Visits: 34	Hi, so I'm planning to make this part in CF. Plan was, coat it in a clear coat to get a smooth surface. Wax and use PVA release agent, then apply epoxy, and lay few layers of CF. (3 of 2/2 twill 400g) Then extract the new part, and cut and do some gentle sanding with fine grit. Then, once its reasonably clean, apply a few layers of clear coat and sand those back as I hear sanding on laminating resin can go through easy. Any thoughts/advice? Thanks
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ChrisR	ChrisR posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 363, Visits: 3K	3 layers of 400gsm twill will add a lot of thickness to the part so it may not fit back in! If you intend to sand a clear coat to smooth a roughish finish you will need to use a high build 2k clear coat
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Sol	Sol posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 8, Visits: 34	Yeah, it's okay its not got a tight space to fit in so won't cause any problems there! Could I get away with 2? I plan on buying some 2k clear!
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ajb100	ajb100 posted 11 Years Ago Post Details
Group: Forum Members Posts: 346, Visits: 4.4K	If your going to,coat the part, you'd be better off using resin instead of gel coat, or if you must use gel, you need to use a wax additive
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dbcrx	dbcrx posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 46, Visits: 1.2K	i think youll also struggle to get the cloth down over the tight corners and narrow edges without vacuuming it, especially with a 400 gsm cloth. if you dont want to make a mold, it may be worth considering making a new blank from foam with simpler edges and then laying acouple of layers onto that.
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Sol	Sol posted 11 Years Ago Post Details
Group: Forum Members Posts: 8, Visits: 34	ajb100 (14/05/2014) If your going to,coat the part, you'd be better off using resin instead of gel coat, or if you must use gel, you need to use a wax additive Sorry I don't understand! I was going to buy a 1kg of laminating resin, and simply just use that! And then at the end do one coat over the whole product, leave to cure then spray some 2K clear coat. Then sand it back?
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ajb100	ajb100 posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 346, Visits: 4.4K	My fault, for some reason I read the first "clear coat" as gel coat!
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Fasta	Fasta posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 468, Visits: 3.5K	You may not even need any sealing coat as often the epoxy resins do not stick to these plastics. Maybe just wax but do a test on the back first. Having said that though, it looks like way too much shape, detail and corners to do with 200g or any carbon and expect it to look good. Too hard! Fastacraft Facebook page
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