Thread sealer.

[njhussey]

Good, I look forward to all your "look what I've done" posts so looking forward to seeing what you produce with this...😀

[Wal]

Hehe. Hopefully not a mess... I've been having a go at the cold enamelling process and want to make as good a job of it as possible, hence the tank to squeeze out them bubbles...

Here's a test piece that looks alright from a distance - I assumed the sparkle resin to be a paste and got my mixing ratios wrong and had to hurriedly mix in black paste after the pour. Loads of flaws in the epoxy, but it's got potential..!



Wal.

[njhussey]

Looks good to me Wal!! Does pressure do it? I thought you vacuum degassed to pull out bubbles in things? Where do you get your cold enamel from? I fancy having a go myself

[Wal]

Yep, after a bit of research I decided to go with pressure - you can de-gas your mixed epoxy prior to pouring it (and that's probably best practice) but you'll end up pouring through the bubbles that accumulate on the surface and you'll likely introduce more bubbles whilst distributing and prodding the epoxy into the harder to reach areas. I can get a pretty bubble free mix by leaving the resin/hardener standing in advance and then taking care not to 'whisk' whilst mixing - you just need to go really steady with it. By allowing the epoxy to cure under pressure, you'll hopefully squeeze down any left-over bubbles - in theory 4 BAR should give a 4x reduction in volume of a given bubble.

I bought my epoxies from Cookson Gold, you'll need:

Hardener
Resin
Colour pastes

You've also got the small quantity pearlescent effect colours - they come in pots the same size as the pastes, but they're resins and need to be mixed directly 2:1 with the hardener. In addition, a small set of digital scales and loads of latex gloves will help. Like most epoxies, it's nasty stuff so take care with it..!

Wal.

[Clive S]

Wal you can buy small syringes 2mand 10m from Coronation St. Reddish http://www.lewis-plast.co.uk/diagnos...sable-syringes near you I use them when I mix very small amounts of epoxy.

[Boyan Silyavski]

A bit late to chime in, but normally for this job i use epoxy. My vacuum station is all sealed with epoxy, so is my compressor and mist system. If i am in doubt that will have to unscrew it later, i use the 2euro epoxy from a chinese shop. Which works well. if propane or oil is involved, i use expensive epoxy.

As a friend said once- " all you need is one hand distance aways from you, just look around, you have it"

[mekanik]

Also i think the double syringe item shown will mix the epoxy in the nozzle so no air entrainment ?
Mike