Brush applied GC50 gel coat


Author
Message
Jess8bit
Jess8bit
Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)
Group: Forum Members
Posts: 133, Visits: 566
Warren (Staff) (27/06/2013)
What we do in the workshop with polyester gels is to use a applicator rollerin a special way to take out the lines and smooth the surface.

All you do is push your finger onto the edge of the roller plastic cradle to stop the roller rotating, then very lightly float it over the surface of the gel to remove the highspots and fill any gaps.  You dont need to apply any force as such.


oh I see, like a fine comb ? 
Thanks for the trick Warren Smile I'll try that !
Warren (Staff)
Warren (Staff)
Supreme Being (22K reputation)Supreme Being (22K reputation)Supreme Being (22K reputation)Supreme Being (22K reputation)Supreme Being (22K reputation)Supreme Being (22K reputation)Supreme Being (22K reputation)Supreme Being (22K reputation)Supreme Being (22K reputation)
Group: Administrators
Posts: 2.5K, Visits: 8.5K
SHould smooth it a bit more!

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
Jess8bit
Jess8bit
Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)Supreme Being (841 reputation)
Group: Forum Members
Posts: 133, Visits: 566
Ok here's the result of my last test :

- the rigt side with the brush (and the fish eyes) :

http://www.talkcomposites.com/Uploads/Images/d5091aac-b79e-4858-ad14-f9e1.jpg


You can see, the fish eyes is visible unfortunately, as the resin and the gel coat are not equally clear (gel coat seems much misty, milky than the clear resin) I guess I cannot correct this at polishing step ?
You can also obsere the visible result of the tracks made by the brush.

- the left side, with roller :

http://www.talkcomposites.com/Uploads/Images/72fb027b-3c8b-4fea-94b7-f4f7.jpg


the carbon has a lumpy look, because of the many medium spots left by the roller. Too bad, the 2/2 twill is not that nice, deformed like this.
As matter of fact, if you put aside the fish eyes and "track effect", the brush gives a better result, regarding the carbon look.

note : the fish-eyeing could have been provoked by the chem. release agent : I wipe one layer before gel coat, an d mybe did not wait enough time in between.

Well, so, guess I have to come back to the spray gun way. I'll probably try the brush + roller trick to smoothen the tracks though.
GO

Merge Selected

Merge into selected topic...



Merge into merge target...



Merge into a specific topic ID...




Similar Topics

Reading This Topic

Explore
Messages
Mentions
Search