K.Y.Mak wrote:
請問有冇人知，邊度有脫模用的 PVA 賣？
國生行會唔會有呢！
國生行會唔會有呢！
深水埗南昌街入大南街一直前行過中電機樓左手邊數前約十間舖有一間化工原料供應商.不彷走走！
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| Author: | K.Y.Mak [ Thu Jul 14, 2005 10:43 pm ] |
| Post subject: | 想買 PVA |
請問有冇人知，邊度有脫模用的 PVA 賣？ 國生行會唔會有呢！ |
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| Author: | Y C Lui [ Thu Jul 14, 2005 10:52 pm ] |
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國生行有。不過 PVA 好難用掃上﹐因為會走珠﹐要用噴槍至得﹐仲要噴幾浸﹐好麻煩﹐我都好少用。阿麥你要黎做也 ? |
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| Author: | K.Y.Mak [ Fri Jul 15, 2005 12:42 am ] |
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希望第日可以做中空仟維机， 有可能會用到 PVA，所以想試一吓先 |
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| Author: | Y C Lui [ Fri Jul 15, 2005 5:00 pm ] |
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一般黎講用蠟已經好掂﹐蠟既好處就係唔會有 build-up 同埋可以令個模面光滑D﹐但壞處就係唔可以保證脫到模﹐譬如 epoxy 模打蠟如果掃完纖維後囉去焗﹐我既經驗就係實黐模﹐另外如果掃青膠(polyester)落一D抵受唔到腐蝕既模具( ABS﹐ PVC 等塑料)﹐D膠就會穿過浸蠟那溶件模具。PVA 就可以解決上述問題。 阿麥如果你要試脫模劑我就推薦 ACP 既 FREKOTE 750 MOLD RELEASE http://www.acp-composites.com/acp-vbes.htm 呢種噴劑用起上黎方便過蠟同 PVA 好多﹐噴重手左都唔會有 build-up。掃完纖維後囉去焗都唔會黐模﹐最大好處就係噴一次就可以起幾個模都唔駛番噴﹐雖然貴D﹐但超級好用。我用咁耐都未試過 high 野。 |
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| Author: | philip heung [ Sat Jul 16, 2005 1:55 am ] |
| Post subject: | Re: 想買 PVA |
K.Y.Mak wrote: 請問有冇人知，邊度有脫模用的 PVA 賣？ 國生行會唔會有呢！ 深水埗南昌街入大南街一直前行過中電機樓左手邊數前約十間舖有一間化工原料供應商.不彷走走！
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