Gelcoat GC50 application

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Gelcoat GC50 application

Gelcoat GC50 application

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Miroslav	M Miroslav posted 7 Years Ago HOT Topic Details
M Group: Forum Members Posts: 4, Visits: 34	Dear Sir, yesterday I have received my order, gelcoat GC50, and found that it is very jelly or thick. I need to apply it by spraying to obtain a relatively thin and uniform layer. I have a spray gun with 2mm nozzle. My feeling is that I need to dilute the gelcoat with styrene monomer. Please can you suggest how to do it without loosing gelcoat proprieties? What weight percentage of styrene can be added? Many thanks in advance, best regards, Miroslav
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MarkMK	MarkMK posted 7 Years Ago HOT Post Details
Group: Forum Members Posts: 338, Visits: 2K	Adding to Warren's advice, you'll find that you'll get better results using a bigger nozzle also If using the recommended G100 cup gun set-up, the FN6 (4.7mm) or, perhaps, the next size down will give good results. It will likely spray okay, if warm, through a 2mm nozzle but it will take a long time to achieve good coverage on anything but quite small moulds
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Gelcoat GC50 application

Miroslav - 7 Years Ago

We do not recommend thinning down GC50 before spraying. With the correct gelcoat cup gun and compressor set up, GC50 will spray without issue. In the current climate, you may find the resin has...

Warren (Staff) - 7 Years Ago

Adding to Warren's advice, you'll find that you'll get better results using a bigger nozzle also If using the recommended G100 cup gun set-up, the FN6 (4.7mm) or, perhaps, the next size down will...

MarkMK - 7 Years Ago

The G100 Gelcoat cup gun we sell already comes with the FN6 nozzle so is good to go with GC50 straight out the box. It is the gun we use to apply GC50 in the Bonnet Making Video

Warren (Staff) - 7 Years Ago

hello, I just tried the gelcoat GC50, a test with air gun and another with a brush, and my problem is when I put the carbon fiber, I try to stick it to the mold with acetone as in the tutorial but th...

Nishitate Luis - 7 Years Ago

The formulation of GC50 has changed slightly since the video was published (there is a pop up box). The new formulation does not become tacky with acetone so that technique does not work with the...

Warren (Staff) - 7 Years Ago

Thanks for your answer, what technique can I use now to stick the carbon fiber? I do infusion and needed to stick well to the mold so that I do not have bubbles.

Nishitate Luis - 7 Years Ago

You'll get best results using a spray tack adhesive. A light mist on the fabric will be enough to hold everything where you need it I use Cytec's Aerofix 3, which leave no visible traces when used.....

MarkMK - 7 Years Ago

You need to be very sparing with any spray tack material as it will be trapped between the GC50 and the fabric so will show up, especially if you over apply it.

Warren (Staff) - 7 Years Ago

You should be able to use virtually any spray adhesive behind an in-mould coating like GC50 and not see any trace of it, provided you don't just pump the stuff on. Even hair spray would be invisible....

Hanaldo - 7 Years Ago

thank you very much for your help.

Nishitate Luis - 7 Years Ago

When did the formula change because of the acetone? I have a cup from January which I wanted to use...

SHaas - 7 Years Ago

The formulation changed around 5 years ago.

Warren (Staff) - 7 Years Ago

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