any updates on uni binder?

[steveo3002]

i know theres been a few bits of chat over the uni binder that converts 2k into non iso air drying paint

anyone got anything to add ? hows it holding up now etc

and.... hows it used exactly ? is it added at the stage when the factor makes the paint up or simply added to the mixed colour instead of hardner ?

 

[richie00boy]

You buy a 2:1 mixing ratio 2k direct gloss or clear as normal, but you don't buy the hardener for it. The hardener is replaced by the Uni Binder. You need to add 2k thinners, but much more than normal as the Uni Binder is thick. Typically equal Uni Binder to thinners ratio. Fast thinners usually.

Because of the high thinners content the coating is more at risk of creating the same problems as normal 1k coatings.

It is important to point out that Uni Binder is not a hardener and the coating won't perform as well as if it had been isocyanate activated. However, from speaking to people that have used it, it does perform better than RFU 1k clears.

Jawel are advertising it saying it mixes at 2:1 +10% thinners, which is incorrect. It should be 2:1:1 as I said above. They are also advertising it as a hardener, which it is not. It is just a drying agent.

 

[steveo3002]

does that fact you water it down more with extra thinners make direct gloss colours see through? assume it must do really

whats the drying times like between coats and to be hard enough to sand /polish or be put into use

does the uni bindered paint keep in a tin or go off once mixed

 

[richie00boy]

You can't lay it on as thick as 2k because it doesn't harden and has more thinners to evaporate, so you need more coats. Yes, the opacity of each coat is less, but the final film thickness will end up similar to what you would get with 2k so the opacity ends up the same. This is exactly the same with cellulose.

Leave 10-15 minutes between coats. It's hard enough next day.

You can mix up the paint and put it into a container and it will stay the same. It is not a hardener.

 

[steveo3002]

right cheers ...sounds like it might be ok

the paint is rock hard like normal 2k once set up?

 

[richie00boy]

Well to a degree, yes. But cellulose goes pretty rock hard too.

If you are looking for 2k performance you will not find it... because it's not 2k, it hasn't cross linked.

 

[steveo3002]

well part of the reason i ask , i need to paint a bit on my car , the only place i can do it is my lock up grage with no leccy

jawel do thier rattle cans with this binder ..i was considering using that in the hopes its reasonbly durable , otherwise i think you can get iso clear coat cans ? might have to get base coat in cans and use that

i want better than celly , but realise cans arent ideal

 

[richie00boy]

When used with a spraygun it comes out nicely and holds up well. But then again I can say the same of the solid colour cellulose I've used.

This Uni Binder is a similar thing to what HB Body use in their Autoclear 496 aerosol, they label it as 2k. It's not 2k, but performance is supposed to be a bit better than the traditional products.

Any custom mixed acrylic aerosol is likely to have the same kind of performance.

 

[steveo3002]

yeah id heard about the hb ones ...i think theres some proper 2k ones with a little button you press that lets the hardner in ?

 

[Daz1968]

My advice is it's ok in top coat but don't use it in primer, I found it difficult to sand without pick up and when over coated with solvent base coat the thinner in basecoat softened the primer so had to be careful it's no substitute for 2k but probably better than cellulose for top coat or clear coat, but I also found upol smart clear 1k ok and can't see any reason to use unibinder over this. I have almost a litre of unibinder and if you were close you could have it to try as I have now gone airfed so will be using normal hardener in future.

 

[steveo3002]

i was planning to use it with direct gloss ..did you find the top coat goes properly hard ? dont want something that goes sticky in the sun etc lol

if you arent using that unibinder id be happy to sort out a courier sometime ?

 

[old yellar]

i have a bit of an update to this,after a pm from steve i had a poke around a freinds garage and found some leftover uni-binder.now the temps in ireland at the mo are between 3 and 9 deg celsius and i can tell ye this stuff was neer solid in the can,sort of like molasis i suppose.i eventually got a decent amount out of the can and put a heat gun under it at a low setting.within a few mins it was roughly the same consistancy as un thinned paint,so this answers the question can it be sprayed without using mad amounts of thinners.i reckon if ye can start with a paint level of viscosity in the unibinder then add the norm 10% thinners ye should bea lot nearer were ye need to be.its never going to be 2k strong but its better than 1k and it wont kill ye if ye treat it with respect.i hope this helps steve.

 

[vw1]

I know its been a while but how did you get on with this paint ? as am thinking of buying some from jawel paints.

 

[steveo3002]

i went with 2k ...didnt want to risk doing the job twice

 

[vw1]

Think i shall be doing the same but shall not be spraying as i do not have air feed mask set up so brush on for me its only chassis parts for now . Does it bond ok to epoxy 121 ?

 

[steveo3002]

whats that? does 2k bond to 121? will do if its keyyed up

have you started the job ? if its for underbody id be inclined to just do 2x black epoxy and then some enamel top coat , as its all "safe" to spray

 

[richie00boy]

Yes as long as you scuff the epoxy.

 

[vw1]

Yes i will advice on grade please ?

 

[charlysays]

Any updates on this stuff guys? I was looking at a jawel paints iso free 2k bundle which I assume uses unibinder... Or is the valspar stuff better (or is jawel just rebranding valspar?)?