Hello all,

Today I started to make some small car part moulds - headlight bowl and indicator pod. Anyway, I quickly realised that the digital scales that I bought from EC are not sensitive enough to do a mix of 50-100g of Coupling coat.

Is there any info on the number of ml per gram? I have a syringe which will make the job much more accurate. I know 1 gram go water is 1ml so shall I assume the same for the MEKP?

Cheers

Al

MEKP has a specific gravity close enough to 1:1 to not worry about it, you can assume 1ml to be equal to 1g. 

What you don't want to do is also measure whatever you are catalysing by volume. Always measure this by weight, and then catalyse accordingly measuring the catalyst by volume if need be.

Just a side note about using a syringe - I'd recommend doing a test before doing anything critical. The rubber stoppers in a syringe will get attacked by the MEKP, and in some cases this can contaminate the mix and cause inhibition. Pipettes are better if you can get them, though I have enough experience to know that 90% of the time syringes aren't a problem either.