Orange 260qs (solid colour) seem to inflate significantly smaller than other colours. This is pants.
Do sempertex orange 260s do any better?

It's the way the pigment effects the latex, yellow and orange blow up thinner and Purple Violet I have found to be fatter.

Ok I have to be honest and say I have never really noticed a big difference in size BUT I thought it was worth checking out.

I have measured some balloons using an engineers measuring gauge thing (cant remember what its real name is). Now Qualatex are measured in inches (260 is 2 inches by 60 inches) but none of the balloons I measured came anywhere near close to the right diameter, they are all roughly around 1 and 5/8th of an inch across (I guess 1 and 5/8th60Q doesn't have the same ring as a 260Q)

From now on I will use millimeters as I find it easier to measure small distances that way and my measuring gauge didn't do inches
I first measured white and this was 41 mm (1 and 5/8th of an inch)

Next was Orange which measures at 39 mm, that is 2 mm smaller than the white

Pale blue came out at 42 mm and red was 40mm

Chocolate brown was back down to 39mm and mocha was 41mm, At this point the doorbell rang and my neighbour wondered what on earth I was doing measuring modelling balloons so I stopped.

So, in conclusion, yes they are smaller but so are some others too, maybe its the colour that makes it look smaller? or maybe you had a batch which actually was smaller. I wonder if the ink had anything to do with it too?

Here is something you have not thought about. Maybe the orange ones are not the problem? maybe every other colour is actually too big?  :lol:

Anyway, that is today's research done, I must go and write a paper about it and publish it to the national geographic magazine.

Rob

I heard somewhere certain colours are dipped more than others and this causes the difference in the colours. I have no idea if this is true or even what it means lol x

I have no scientific explanation such as Rob's however I to have also noticed this phenomenan

I always find the orange to be harder to blow up than any other colour, again no idea why but it is always the case?

Vernier calipers will be the name of the tool I thnk you were looking for Magicrob

I just did a quick search for this as I'm struggling with a particular Tiger design. The orange just seems less flexible than other balloons, Think I'll order some Sempertex and see if they are any better.

SoniaPayne: balloons are made by dipping a form, the shape of the finished balloon, in liquid latex. I don't think one colour is dipped more times than another. There is a video of how Qualatex balloons are made. Probably it is on YouTube.

Quote from: "mickfox"I just did a quick search for this as I'm struggling with a particular Tiger design. The orange just seems less flexible than other balloons, Think I'll order some Sempertex and see if they are any better.

Try softening the balloon by pulling it through your fingers so you warm the balloon up, this will make it more flexible.