Easy Composites' GC50 Epoxy Compatible Polyester Gelcoat

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Easy Composites' GC50 Epoxy Compatible Polyester Gelcoat - First time!

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Carbon Tuner	Carbon Tuner posted 13 Years Ago HOT Topic Details
Group: Forum Members Posts: 104, Visits: 422	Here it is boys, something I like to think as the last step in getting a perfect part! After stepping into the clearcoating/painting business I can tell you, with or without a paint both it is a total PITA. I cant stand clear coating a part after de moulding, then the clearcoat gets wavy or a bug in it. then i san and polish, still not perfect. I'm starting to learn this real fast; the key to a perfect part, is taking a mould from a perfect part and polishing it there. I plan to make some really perfect molds, then try this. The site says you can brush it on, we for my size parts that would be really connivent. Now matter what the surface of the part will be perfect but if your paint strokes on the back are to thick you may see your weave get a little wobbly. When making parts smaller than ".5 meter" I think my cup gun is a bit much? think an air brush system would work? If Brute Force Isn''''t working your not using enough...
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marc37i	marc37i posted 13 Years Ago HOT Post Details
Group: Forum Members Posts: 16, Visits: 566	Matt (Staff) (10/07/2012) A typical nozzle size for gelcoat is around 4-6mm so anything that's a fraction of a mm will be a struggle. As for thinning the gelcoat out, acetone is a no-no as this will certainly damage the gelcoat. Styrene monomer would thin the gel without damaging it but really from a health-and-safety point of view, cranking up the styrene and then atomising it through a gun is a pretty scary idea. I'm not a health and safety nut but I would personally not fancy this without a full air-fed mask. Thanks for the reply Matt. I understand that using a cup gun and a 4-6mm nozzle would normally be fine when spraying a medium to large size mold but I'm trying to find a solution for spraying the gelcoat in small molds hence me trying to find a way of using a spot repair gun. You state that thinning the gelcoat with styrene would not cause any damage, would you have any information on the maximum percentage of styrene I could use? I totally agree with your concerns regarding the H&S aspects of doing this.... but I do have a full air-fed mask setup as I already spray 2k clearcoat on my parts.
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Matt (Staff)	Matt (Staff) posted 13 Years Ago HOT Post Details
Group: Forum Members Posts: 680, Visits: 1.9K	You can add styrene up to about 7 % of the resin/gel but you'll find that at that ratio it might start to affect the resin/gel (causing it to become more brittle when cured) so try to add as little as you can get away with. Matt Statham Easy Composites / Carbon Mods - Technical Sales
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Easy Composites' GC50 Epoxy Compatible Polyester Gelcoat - First time!

Carbon Tuner - 13 Years Ago

Would be interested to see more results of this gel coat especially brushed on! Also would be good...

Dave - 13 Years Ago

well you can guess the weight by how much you measure out for your part, then subtract whatever you...

Carbon Tuner - 13 Years Ago

Hi Guys, Brushing this gelcoat if fine for smaller parts, you will need approximately 200-300...

Paul (Staff) - 13 Years Ago

I've used the GC50 gelcoat brushed on to the mould at a rate of 300gsm, you need to work quite...

stuart321 - 13 Years Ago

[[EDIT - DOUBLE ANSWERED! YOU ARE LUCKY!!]] Spraying will certainly mean that you can put it on...

Matt (Staff) - 13 Years Ago

Will thiss stuff protect from UV, as aLacquerwould? Alex

pk_090 - 13 Years Ago

Hi Alex, No, epoxy doesn't protect from UV like a polyurethane paint or a polyester gelcoat would....

Matt (Staff) - 13 Years Ago

Thanks guys, Sounds like I will be spraying it on. My question about the pva was not if it would...

Carbon Tuner - 13 Years Ago

[quote] My question about the pva was not if it would de-mould well but if I spray it on the pva,...

Matt (Staff) - 13 Years Ago

What would be the best gun to use for spraying small molds? would an airbrush work or would a small...

marc37i - 13 Years Ago

Well All I have is a big top feed gun, I can use this in the future buut a bit big for the size of...

Carbon Tuner - 13 Years Ago

[quote][b]Carbon Tuner (30/06/2012)[/b][hr] In my air brush searching I found "PAASCHE AIRBRUSH" #...

marc37i - 13 Years Ago

Have you tried a chemical semi-permenant release agent such a easylease or similar? You will get a...

Warren - 13 Years Ago

Cool, yes I think I will try that next. I did post somewhere around here that the wax and pva...

Carbon Tuner - 13 Years Ago

in theory as long as you have a 100% even coat of wax in one hit then fine. However usually you do...

Warren - 13 Years Ago

Thanks for the heads up marc. Wel I gave my shot at covering the part in wax. I think it came out...

Carbon Tuner - 13 Years Ago

Well I decided to test the gel coat. I bought this paint sprayer in fear that my big 20oz. one...

Carbon Tuner - 13 Years Ago

Hi Carbon Tuner, It looks like it's gone down evenly but it does look a bit 'dimply'. I think what...

Matt (Staff) - 13 Years Ago

Well The Part came out like you guessed, looks nice but fiber is dimpled. I decided to try...

Carbon Tuner - 13 Years Ago

Hi Carbon Tuner, answers to your questions: [quote] #1. do I have to order these cups for the...

Matt (Staff) - 13 Years Ago

If your parts are ever going to see direct sun light your going to have to use a UV protective clear...

fgayford - 13 Years Ago

Go read the info on GC50... If this is not UV protection why the heck am I even wasting my time with...

Carbon Tuner - 13 Years Ago

GC50 is a UV protective layer . It's been well tested in this capacity and works as well as a clear...

Matt (Staff) - 13 Years Ago

Carbon Tuner..... I think the 0.8mm nozzle on your gun maybe a little small for spraying a gelcoat,...

marc37i - 13 Years Ago

A typical nozzle size for gelcoat is around 4-6mm so anything that's a fraction of a mm will be a...

Matt (Staff) - 13 Years Ago

[quote][b]Matt (Staff) (10/07/2012)[/b][hr]A typical nozzle size for gelcoat is around 4-6mm so...

marc37i - 13 Years Ago

You can add styrene up to about 7 % of the resin/gel but you'll find that at that ratio it might...

Matt (Staff) - 13 Years Ago

Great, thanks for all the input! Then My next step is getting this cup gun and mastering a good...

Carbon Tuner - 13 Years Ago

This could help you to see the correct handling of the gun and application technique of a gel. This...

Kevin-Lee - 13 Years Ago

Thanks for the video feed, I will definitely be trying to mimic their technique! Gun is on the way,...

Carbon Tuner - 13 Years Ago

If I had such blonde hair I woudn't spray gelcoat like that :D:D:D

NikCFC - 13 Years Ago

Hey guys, For when I need a smaller amount of GC50, I made me a smaller cup adapter, so I dont...

Joe - 13 Years Ago

Definitely will be giving this a try for some of my products! [quote][b]Joe (12/07/2012)[/b][hr]Hey...

Dave - 13 Years Ago

STILL WAITING ON THIS CUP GUN'

Carbon Tuner - 13 Years Ago

Bang Joe you nailed it, for the most part this guns nozzle and cup adapter is WAY too BIG for nearly...

Carbon Tuner - 13 Years Ago

O how I need this now....

Carbon Tuner - 13 Years Ago

Well I brushed it on and it just fisheyed like mad. Mad it thicker - still fisheye. Waited a bit for...

mikew - 13 Years Ago

Hi Mike, What's the release agent on your mould surface? --Matt

Matt (Staff) - 13 Years Ago

Easylease. I cleaned the mould and tried again, no problems second time round. Not sure why it was...

mikew - 13 Years Ago

I wonder whether there was any trace contaminents (silicone or polish on the cloth etc.). A few...

Matt (Staff) - 13 Years Ago

Well for the LOVE of god will someone post a pic of what this is suposed to look like once sprayed...

Carbon Tuner - 13 Years Ago

Yesterday my Easy Lease made it to AMERICA! I had given up on it, turns out it must come by slow...

Carbon Tuner - 13 Years Ago

Hi Don, I'm glad it's arrived with you. I think it hitch-hiked all the way there! For your release...

Matt (Staff) - 13 Years Ago

Thanks Matt, Ok I get what your saying about laying it down, Now that I know .5mm is the max...

Carbon Tuner - 13 Years Ago

Hi, I use the GC50 Gel Coat a lot these days. It has taken me a while to get the technique right....

wozza - 13 Years Ago

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