Brand Comparison | Cara Jane Polymer Clay Brand Comparison | Cara Jane Polymer Clay

Brand Comparison

Posted on March 16, 2010

First published March 2010 – updated slightly May 2019

For years I used Fimo polymer clay which is readily available here in the UK. Recently I found Cindy Leitz and having read a lot on her blog and seeing her beautiful colour mixing recipes I decided I ought to try Premo clay. I’ve collected some other brand reviews and comparison on Pinterest here. Being a fan of Donna Kato’s work and having her excellent book I decided to try Kato polymer clay at the same time.

Here are some photos and notes about the different brands of polymer clay I tried; Kato, Premo, Fimo Soft and Fimo Classic.

First findings:
Kato – Very crumbly as it came out of the packet. This was written in 2010 – Kato has improved a lot and is no longer crumbly as it comes out of the packet. You do still have to put more work into conditioning it but nothing like it was 10 years ago. Had to work it to warm it up before I was able to run it through the pasta machine. Firm, more difficult to shape. This polymer clay has quite a strong smell.

Premo – Very soft from the packet and was able to put it straight through the pasta machine. Soft to work with.

Fimo Soft (my normal brand in 2010) – Soft from the packet was able to put straight through the pasta machine. Very soft to work with.

Fimo Classic – I found this much the same as Fimo soft which surprised me. It wasn’t quite as soft when first out of the packet but after being passed through the pasta machine a few times is was just as soft as the Fimo soft. Now in 2019 there is Fimo Proffesional but it wasn’t available when I wrote this originally

Flower Cane
First of all I made a Spliced Flower Cane in Blue, White and Green. I tried to keep the colours  the same as possible but didn’t go to great extremes of colour mixing (I’m not that good at it – yet!)

Polymer clay Brand comparison by Cara Jane Hayman. Kato, Premo, Fimo soft, Fimo Classic
From left to right Kato, Premo, Fimo soft, Fimo classic spliced flower canes all made the same way as much as possible
The top row was a slice cut with a tissue blade just after the cane was finished and the bottom row is the same brands cut after a rest (overnight). I realised that my blade wasn’t as sharp as it used to be but this didn’t seem to matter for the firmer Kato clay. I am sure I can improve my cane slicing technique (and I have also since bought a new blade). I can see very clearly that it pays to leave your clay to cool down before slicing what ever brand you use. I know many people recommend putting it in the fridge for a while – I must try that. Wow the difference shocked me – the Kato one (made in exactly the same way) looks very different. I accept there may have been a slightly larger area of white in the middle but even so the definition that the cane retained is far superior.
Brand comparisons - Kato and Premo
Brand comparisons – Kato and Premo
A closer view of the Premo and the Kato flower cane slices

Geometric Cane

I realised that the spliced flower cane wasn’t a completely ‘repeatable’ cane so decided to make a simple geometric cane to see how that turned out.
Cara Jane Polymer brand comparison Kato, Premo, Fimo Soft and Fimo Classic
From left to right Kato, Premo, Fimo Soft and Fimo Classic
Again top row was cut straight away and the bottom row was cut the next day. As I was making them I thought the fimo looked different but couldn’t work out why – hmm I realise now I only did half the job. Not sure what happened to the next day kato sample but needless to say it looked much the same, insignificant deformation. Although the difference wasn’t as marked as the spliced flower cane – I still much prefer the results of the kato. I like the feel of the baked kato too. The Kato white appears more white and I think part of this is being firmer it stays cleaner.
Cara Jane Brand Comparison close up of Kato and premo canes
A close up of the Kato and Premo canes


As I was working the spliced flower canes I thought I would prefer the Premo. I didn’t like the work needed to condition the Kato clay and it was much firmer to work with even when thoroughly conditioned. The firmness is sometimes a disadvantage and sometimes an advantage. It was a disadvantage making the splice flower cane in the pinching the sides down. Also squashing the cane stacked quarters into a flat piece was quite physically demanding with the kato clay. At other times the firmness was an asset, cutting the bullseye canes into quarters was easier, less deformation. Things held their shape better and weren’t floppy as they were with all the other brands at times. There was much less waste with the Kato et every stage. Even making skinner blends there was less waste from the Kato as it distorted less. It is very much a personal preference and all sorts of things will effect your choice from where you live (temperature etc), how you buy your clay (I have to buy Kato online can’t get it in any local shops in the UK), the strength of your hands, what you like to make, how you work etc. Also if you don’t want to mix colours the Kato range is rather limited. However after I had seen the sliced and baked canes my mind was set – I’ll give this Kato clay a go. I will probably invest in a little chopper to aid conditioning it isn’t something I enjoy but I would say the results make that extra effort worthwhile. 2019 Update – After this blog posted I started using Kato Polyclay for most of my cane work (which is most of my polymer work – it’s the thing I enjoy most). In 2019 Kato Polyclay is still my brand of choice for making canes.


  1. Thanks for the info…please post if you find other ways of conditioning Kato Clay. I haven’t used it because many have told me that it smells and is very tough in conditioning. My wrists are bad as it is…so, I use Fimo Soft for making canes.

  2. I am writing up my post on different ways to condition Kato clay , none are any where near as easy as conditioning fimo soft. They have just reformulated Kato clay to be easier to conidtion – haven’t got any yet so if anyone else has some before me please let me know what it’s like – is it still firm to work with?

  3. I started my clay experience using Sculpey III, as it was the cheapest. It was very easy to condition, for the most part, but very sticky to work with and slices tended to mash down. I was also told it’s the most brittle after baking.

    I’ve started the switch over to Premo!, and actually like that so far. I have physical limitations and this one is not too stiff for me to condition.

    I’ve heard the Kato clay is the best, which makes sense, since an expert designed it. But I don’t think I’m physically capable of conditioning it without some mechanized aide. I’m looking forward to your future post, to learn how you manage to do the conditioning. I’d love to have the slices come out the way I planned them too!


  4. I have just started using polymer clay, and am using Cernit, which was recommended by Emma Ralph on her shop/website It is not too bad to condition except I’ve just broken the cheap pasta machine I bought – it’s just seized up and the rollers won’t turn. I’m currently having to condition it by hand which is hard as I have weak hands. I have just made a klimt cane and once the clay is soft it’s hard to keep it in shape. i’ve just realised I have to let it cool down to cut it if I want to keep any definition.
    I don’t know If I’d be able to manage Kato either shiborigirl, my hands are very weak and my left hand is hurting from turning the extruder!

  5. I must try Cernit as I know a few of you use it.

    I would definitely recommend putting canes in the freezer for 10 minutes or so before slicing if you have a soft clay. Or leave it for a few hours but I am too impatient for that!

    I am still writing up my Kato conditioning post – it’s a long one! There are several different ways but they all involved some effort. Also the Kato is firmer to work with even when it is conditioned which for me is a plus as it means I am less likely to distort my work but if youhave limitations with hand strength you will probably find a problem.

    I find fimo so sticky now and my canes are more sloppy than they used to be becuase I am used to having the firmer Kato clay now. I probably ought to leach the fimo but I am too impatient.

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