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 Post subject: 噴油問題
PostPosted: 13 Aug 2004 12:26 pm 

Joined: 20 Jul 2004 04:16 pm
Posts: 43
已用油性噴油 + 光油, 用噴油噴之後, 個表面無打磨, 乾左就噴光油. 但噴完個表面無仍然無'立立另'既感覺.

想問無立立另係咪因為無打磨, 個表面吾光滑所至呢?


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PostPosted: 13 Aug 2004 02:13 pm 

Joined: 08 Jun 2004 07:14 pm
Posts: 92
Location: TaiPo/TuenMun
laum, it is important to polish the color paint b4 the clear, you may gently polish it by 1000 or 1200 water sand paper, spray a thin layer after it fully dry, may use hair dry to dry it out, left the 1st layer clear paint semi dry, then u may do the 2nd layer, carefully spray around till you can see the reflection of the light as a mirror but without any tear drop, that is quite critical, but I am sure if you can do carefully everytime, you can do as what other ppl do, there are some other method to make shine and bright but that is a very very long story to tell, by the way, what sort of spray paint you use? Patrick


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PostPosted: 13 Aug 2004 03:05 pm 

Joined: 20 Jul 2004 04:16 pm
Posts: 43
Patrick,
thx for your information. I will try to pollish the body with water sand water, thx.

I am using Mr. Color gloss color spary.

I went to model shop today and ask the shopkeeper, he said after spary, better to 打臘 with 雙星臘水, do you think is it useful?


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 Post subject:
PostPosted: 13 Aug 2004 05:02 pm 

Joined: 08 Jun 2004 07:14 pm
Posts: 92
Location: TaiPo/TuenMun
laum, if the last layer of the clear laq. not thick and smaooth enough, I mean if you can see the surface still look like an orange skin under the lighting, you need to sand it with 1000 sand paper, and re-spray it or if the wax is suitable to do the finishing glaze, then you can make it shine. Tayami wax, I never try b4! Patrick


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 Post subject:
PostPosted: 13 Aug 2004 05:41 pm 
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Joined: 26 Feb 2004 05:31 pm
Posts: 741
Location: 沙田
我同朋友大約係十幾年前開始玩纖維飛機殼噴油﹐首先係飛機﹐跟著係直升機﹐我地用既顏色層係 ICI 既 Belco 汽車噴漆同長頸鹿/駱駝牌既手掃漆。 防 fuel 層就用飛魚牌既?#27833;霸?polyurethene 漆﹐有主劑同硬化劑﹐發覺效果好好﹐就咁多年都無轉過。我地鍾意呢隻油既幾個特性﹕
1)隻油既專用天拿水揮發較慢﹐令D油有足夠時間流平﹐唔會起好勁既 "荔枝皮?
2)隻油好硬﹐飛完一日隻機成身沙塵﹐抹機時難免會磨花隻機﹐令光油好快變啞油﹐油霸係呢方面既抗磨能力比起它油好好多。
3)日子耐左唔會變黃
4)表面非常光靚

但係呢隻油都唔係無缺點﹕
1)慢乾﹐24小時後可以用手摸﹐但要等最少4-7日至徹底硬化(大力用手指壓落去唔會留低手指模 ),為左令D油快D乾﹐我地一般都會用射燈或暖爐焗 ( 溫度大約 45 度 )
2)難拋光。由於隻油硬得黎好韌﹐D油噴到 "流眼淚\" 或起 "荔枝皮" 時好難用拋光劑卒走。

如果 laum 兄唔係噴油機﹐就無謂咁麻煩﹐因為上述工序需要用到噴槍同風泵﹐用田宮或郡仕等模型油實在太唔化算﹐建議用五金舖賣既?#27966;樂士?#32592;裝噴漆﹐有好多隻色揀﹐隻油又可以用省銅水或車臘(係磨臘﹐唔係油臘)卒靚﹐有心機既話卒到變鏡面都得。


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 Post subject:
PostPosted: 13 Aug 2004 05:58 pm 

Joined: 08 Jun 2004 07:14 pm
Posts: 92
Location: TaiPo/TuenMun
Y.C., I am not so agree to use pylox in model making, it is too thick in each layer and if cover with some other brand of paint, they will be eaten, some years ago, we have some other brand available in the auto color paint shop, one in Lok Shan Rd behind the Jockey Club, they actually professional use in auto car, plenty color, but not sure have cleat laq. or not, very good in quality.
Flying Fish is for using in floor, they even can let car running on it for some years but they are also too too thick and heavy, sure long time to set, you may try Dupoint next time, think you will have suprise, Patrick


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 Post subject:
PostPosted: 17 Aug 2004 02:13 pm 

Joined: 20 Jul 2004 04:16 pm
Posts: 43
PatrickYellow wrote:
laum, if the last layer of the clear laq. not thick and smaooth enough, I mean if you can see the surface still look like an orange skin under the lighting, you need to sand it with 1000 sand paper, and re-spray it or if the wax is suitable to do the finishing glaze, then you can make it shine. Tayami wax, I never try b4! Patrick


thx Patrick,
very detail info, thx.


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 Post subject:
PostPosted: 17 Aug 2004 02:16 pm 

Joined: 20 Jul 2004 04:16 pm
Posts: 43
Y C Lui wrote:
我同朋友大約係十幾年前開始玩纖維飛機殼噴油﹐首先係飛機﹐跟著係直升機﹐我地用既顏色層係 ICI 既 Belco 汽車噴漆同長頸鹿/駱駝牌既手掃漆。 防 fuel 層就用飛魚牌既?#27833;霸?polyurethene 漆﹐有主劑同硬化劑﹐發覺效果好好﹐就咁多年都無轉過。我地鍾意呢隻油既幾個特性﹕
1)隻油既專用天拿水揮發較慢﹐令D油有足夠時間流平﹐唔會起好勁既 "荔枝皮?
2)隻油好硬﹐飛完一日隻機成身沙塵﹐抹機時難免會磨花隻機﹐令光油好快變啞油﹐油霸係呢方面既抗磨能力比起它油好好多。
3)日子耐左唔會變黃
4)表面非常光靚

但係呢隻油都唔係無缺點﹕
1)慢乾﹐24小時後可以用手摸﹐但要等最少4-7日至徹底硬化(大力用手指壓落去唔會留低手指模 ),為左令D油快D乾﹐我地一般都會用射燈或暖爐焗 ( 溫度大約 45 度 )
2)難拋光。由於隻油硬得黎好韌﹐D油噴到 "流眼淚" 或起 "荔枝皮" 時好難用拋光劑卒走。

如果 laum 兄唔係噴油機﹐就無謂咁麻煩﹐因為上述工序需要用到噴槍同風泵﹐用田宮或郡仕等模型油實在太唔化算﹐建議用五金舖賣既?#27966;樂士?#32592;裝噴漆﹐有好多隻色揀﹐隻油又可以用省銅水或車臘(係磨臘﹐唔係油臘)卒靚﹐有心機既話卒到變鏡面都得。


thx YC,
我係羅黎噴我架RC帆船既船身, 個船身都幾大, 係模型舖買實在吾化算.

想問磨臘係邊有得賣呀? 幾多錢?


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 Post subject:
PostPosted: 17 Aug 2004 02:46 pm 

Joined: 08 Jun 2004 07:14 pm
Posts: 92
Location: TaiPo/TuenMun
laum, you will join the contest this Sunday, or if you will have a watch there, I bring you some coz those polishing wax are around $100/litre, Patrick


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 Post subject:
PostPosted: 17 Aug 2004 08:58 pm 
User avatar

Joined: 26 Feb 2004 05:31 pm
Posts: 741
Location: 沙田
laum 兄﹐有樣野我唔記得講﹐?#27966;樂士?#65104;手掃漆﹐呢類油既硬度低﹐所以好容易用研磨劑 (磨臘﹐省銅水﹐牙膏等) 拋光﹐但除非你卒靚左之後唔再掂佢﹐否則好容易會花。

要保持長久光靚都係要用硬油。呢類油通常係分開主劑同硬化劑﹐用個陣至溝埋﹐仲一定要用專用既天那水﹐硬化劑一開罐就要儘快用完﹐否則幾個月後就會唔用得﹐非常麻煩。呢種油既化學成份一般都係 Epoxy 或 PolyUrethane(PU) .例子有飛魚牌?#27833;霸?#65104;K&B epoxy 油﹐ICI 2K, Dupont, Aikka 等。

Patrick, 你話要黎油地台既飛魚牌油會唔會係?#27833;寶?#65104;呢隻係 epoxy 油﹐而?#27833;霸?#20418; PolyUrethane 油﹐一般係用黎油機器﹐遊艇等﹐價錢比"油寶?#36020;﹐但比起 ICI 個類既名牌汽車油就平好多。


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 Post subject:
PostPosted: 18 Aug 2004 12:25 am 
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Joined: 02 Mar 2004 10:44 am
Posts: 8
Hi all,
Image
上面係小弟最近做既wing, 個表面係手掃上Aikkia光油,可能係手掃關系,個表面做唔到好平滑,有試過用air brush,但係又做唔番光令既效果,都好啞下。唔知係噴光油方法上有冇D野要注意呢?我噴左好多次都唔令,最後都係手掃。 :roll:


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 Post subject:
PostPosted: 18 Aug 2004 09:31 am 

Joined: 08 Jun 2004 07:14 pm
Posts: 92
Location: TaiPo/TuenMun
Y C Lui wrote:
laum 兄﹐有樣野我唔記得講﹐?#27966;樂士?#65104;手掃漆﹐呢類油既硬度低﹐所以好容易用研磨劑 (磨臘﹐省銅水﹐牙膏等) 拋光﹐但除非你卒靚左之後唔再掂佢﹐否則好容易會花。

要保持長久光靚都係要用硬油。呢類油通常係分開主劑同硬化劑﹐用個陣至溝埋﹐仲一定要用專用既天那水﹐硬化劑一開罐就要儘快用完﹐否則幾個月後就會唔用得﹐非常麻煩。呢種油既化學成份一般都係 Epoxy 或 PolyUrethane(PU) .例子有飛魚牌?#27833;霸?#65104;K&B epoxy 油﹐ICI 2K, Dupont, Aikka 等。

Patrick, 你話要黎油地台既飛魚牌油會唔會係?#27833;寶?#65104;呢隻係 epoxy 油﹐而?#27833;霸?#20418; PolyUrethane 油﹐一般係用黎油機器﹐遊艇等﹐價錢比"油寶?#36020;﹐但比起 ICI 個類既名牌汽車油就平好多。


You are right YC, I screw them up, sorry Laum, but polyurthene is really not hard enough to do polishing, if not spray well, it almost cannot brighten, except using some kind of cutting cream (wax) to repair, can be shine but cannot last long.


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 Post subject:
PostPosted: 18 Aug 2004 11:24 am 
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Joined: 26 Feb 2004 05:31 pm
Posts: 741
Location: 沙田
Martin Liu wrote:
....唔知係噴光油方法上有冇D野要注意呢?


呢個問題真係好難答。以前開始玩個陣噴得唔靚大致有幾個原因﹕

1) 天那水份量唔正確
太多天那水會容易?#27969;眼淚?#65104;又會搞到D油太稀﹐填唔到省底油時留低既沙紙痕。太少天那水會搞到D油太杰﹐好難流平﹐結果起沙面或?#33620;枝皮?。

2) 天那水揮發太快
我個陣揀飛魚牌?#27833;霸?#26082;原因之一係因為佢既專用天那水輝發得較慢﹐令D油噴到施工面後有多D時間保持係稀釋狀態﹐比較容易流返平﹐減低?#33620;枝皮?#24773;況。天那水如果揮發得太快仲會令施工面過度冷卻﹐凝聚水氣﹐另D油發白。田宮既 TS 系列噴油就有呢個問題﹐噴完我要用風筒吹先至可以令表面光靚番D。但都唔係好靚。

3) 枝噴槍既噴嘴同風泵氣壓較得唔好
唔識用文字形容﹐你有機會試下就知道。

4) 噴油既手勢唔好
呢樣野真係有排練﹐掃枝槍得太快會令油層太薄﹐起沙面﹐太慢則會令油層太厚﹐流眼淚。除速度外﹐仲要控制噴槍同施工面保持適當距離 (大概一到兩呎)

5) 噴油場地唔夠通風
我以前住舊樓個陣有間好簡陋既噴油房﹐兩邊有窗﹐加把電風線(向窗外吹)﹐空氣對流就好好﹐係通風差既環境下﹐空氣中D半乾油點會跌番落去施工面﹐形成沙面﹐好肉酸。

其實仲有好多野要留意﹐不過我已經無噴油好耐﹐好多野都唔記得﹐依家叫我再噴都幾難噴得靚啦﹗


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 Post subject:
PostPosted: 18 Aug 2004 01:00 pm 
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Joined: 02 Mar 2004 10:44 am
Posts: 8
Thanks Y C,
睇完你的reply後,我諗問題應該在,噴油噴得太薄,令到個面起沙,同通風唔好所致。
謝謝你的reply,等我再試試先 :wink:

呀,我仲想問噴筆方面,有冇野須要注意?我而家用緊噴摸型個D,會唔會細過頭呢?



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 Post subject:
PostPosted: 18 Aug 2004 10:44 pm 
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Joined: 26 Feb 2004 05:31 pm
Posts: 741
Location: 沙田
Hi Martin,

模型用既噴筆肯定會細過頭﹐我用既係下面個枝大噴槍。價錢大約 HK$300。好多地方都有得賣。

Image


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 Post subject:
PostPosted: 18 Aug 2004 11:17 pm 

Joined: 02 Mar 2004 10:18 pm
Posts: 208
Y C Lui wrote:
Hi Martin,

模型用既噴筆肯定會細過頭﹐我用既係下面個枝大噴槍。價錢大約 HK$300。好多地方都有得賣。

Image

YC, 想問吓D"油霸"在那裏有得賣?
還有枝槍用完後用咩洗噃干淨?


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 Post subject:
PostPosted: 19 Aug 2004 12:16 am 
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Joined: 26 Feb 2004 05:31 pm
Posts: 741
Location: 沙田
Hi Hendry, 油霸可以係好多油漆舖買到﹐洗噴槍用最 cheap 既天那水就得架啦 ﹗


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 Post subject:
PostPosted: 19 Aug 2004 01:52 am 
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Joined: 02 Mar 2004 10:44 am
Posts: 8
YC,
Thanks alot of your information.
咁,隻咁大既噴槍係邊D地方有得賣? :P


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 Post subject:
PostPosted: 19 Aug 2004 08:31 am 

Joined: 03 Apr 2004 10:27 pm
Posts: 42
Martin Liu wrote:
YC,
Thanks alot of your information.
咁,隻咁大既噴槍係邊D地方有得賣? :P


如果你左近有買風動工具既五金都多數會有,或者大間d既五金都有,旺角新填地街﹑上海街一帶更多。


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 Post subject:
PostPosted: 19 Aug 2004 06:40 pm 
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Joined: 02 Mar 2004 10:44 am
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thx guys :)


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 Post subject:
PostPosted: 26 Aug 2004 03:48 pm 

Joined: 20 Jul 2004 04:16 pm
Posts: 43
Y C Lui wrote:
laum 兄﹐有樣野我唔記得講﹐?#27966;樂士?#65104;手掃漆﹐呢類油既硬度低﹐所以好容易用研磨劑 (磨臘﹐省銅水﹐牙膏等) 拋光﹐但除非你卒靚左之後唔再掂佢﹐否則好容易會花。

要保持長久光靚都係要用硬油。呢類油通常係分開主劑同硬化劑﹐用個陣至溝埋﹐仲一定要用專用既天那水﹐硬化劑一開罐就要儘快用完﹐否則幾個月後就會唔用得﹐非常麻煩。呢種油既化學成份一般都係 Epoxy 或 PolyUrethane(PU) .例子有飛魚牌?#27833;霸?#65104;K&B epoxy 油﹐ICI 2K, Dupont, Aikka 等。

Patrick, 你話要黎油地台既飛魚牌油會唔會係?#27833;寶?#65104;呢隻係 epoxy 油﹐而?#27833;霸?#20418; PolyUrethane 油﹐一般係用黎油機器﹐遊艇等﹐價錢比"油寶?#36020;﹐但比起 ICI 個類既名牌汽車油就平好多。


YC 兄,
thx, 試過派樂士, 真係好掂, 買左噴的, 先遠距離噴幾層, 每層噴既時間相隔大約1小時, 再近距離(大約8-10cm) 噴2層, 每層噴既時間相隔大約1日, 就攪掂.


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 Post subject:
PostPosted: 26 Aug 2004 03:48 pm 

Joined: 20 Jul 2004 04:16 pm
Posts: 43
Y C Lui wrote:
laum 兄﹐有樣野我唔記得講﹐?#27966;樂士?#65104;手掃漆﹐呢類油既硬度低﹐所以好容易用研磨劑 (磨臘﹐省銅水﹐牙膏等) 拋光﹐但除非你卒靚左之後唔再掂佢﹐否則好容易會花。

要保持長久光靚都係要用硬油。呢類油通常係分開主劑同硬化劑﹐用個陣至溝埋﹐仲一定要用專用既天那水﹐硬化劑一開罐就要儘快用完﹐否則幾個月後就會唔用得﹐非常麻煩。呢種油既化學成份一般都係 Epoxy 或 PolyUrethane(PU) .例子有飛魚牌?#27833;霸?#65104;K&B epoxy 油﹐ICI 2K, Dupont, Aikka 等。

Patrick, 你話要黎油地台既飛魚牌油會唔會係?#27833;寶?#65104;呢隻係 epoxy 油﹐而?#27833;霸?#20418; PolyUrethane 油﹐一般係用黎油機器﹐遊艇等﹐價錢比"油寶?#36020;﹐但比起 ICI 個類既名牌汽車油就平好多。


YC 兄,
thx, 試過派樂士, 真係好掂, 買左噴的, 先遠距離噴幾層, 每層噴既時間相隔大約1小時, 再近距離(大約8-10cm) 噴2層, 每層噴既時間相隔大約1日, 就攪掂.


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 Post subject:
PostPosted: 26 Aug 2004 10:16 pm 
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Joined: 26 Feb 2004 05:31 pm
Posts: 741
Location: 沙田
恭喜恭喜﹐laum 兄果然又認真又好心機﹐日後摸索到D好招數記住過番D料黎。


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