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Npp filtering issues?

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  1. #1
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    Npp filtering issues?

    Anyone have any issues with filtering NPP? just went through 3 Millipore filters with nothing to show for it.....
    (Product was warm so it would filter easier the filters specs are max 50?c and it was below that.)

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    Were you using a steri cup? if so what was the psi you were using to filter?
    I never see what has been done; I only see what remains to be done -buddha

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    Npp filtering issues?

    What is the membrane made out of... My guess is you're using the wrong type... A hydrophobic membrane will not allow product to filter.

    Recommended membranes are PES, PVDF, PTFE...
    Last edited by colochine; 06-23-2014 at 09:23 AM. Reason: mispelling

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    It was a pes membrame and the psi I didnt even make it to 5 each time before they broke, id just filtered 500mls of test prop via 2 of the filters before trying the npp which worked without any issues

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    What was the recipe, what oil did you use, how many mg/ml. WHere is the powder from? I just filtered a 240/120 Test C/Npp brew about 2 hours ago. It was slower than usual but hey it was 360mg/ml. What broke when you tried to pump up the psi? Npp is just a powder with an ester and displacement you dissolve in solvents. No different from any other AAS.

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    I just used basskillers calculator to make 500mls at 100mg. Powders from china Ive used it before test e, eq, test p all worked fine had a few filters crack but learnt to keep the psi around 5-6. The paper membrane broke within 20 seconds

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    Probably a shitty filter. NPP runs through PES filter at 50% EO for me very easily. Also at 150mg/ml.

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    I ordered some more filters will have to wait and see.

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    PES filters are incompatible with Benzyl Benzoate. Use nylon or PVDF
    Source: http://www.nationalscientific.com/su...Comp-Chart.pdf

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    So my nylon membrane nalgene filters arrived yesterday, had no dramas filtering eq, test e, tren a but the npp has broken 2 already my technique is identical to the others keep the psi low same bb/ba ratios. Wtf?

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    That is weird man. I just tried to filter some 150mg/ml test prop today and the receiver cracked at 25psi. Then I had a spare and the filter just blew right around 35. Fucking garbage cellulose nitrate filters. I've had some cellulose acetate filters up to 70psi with a pyrex bedia bottle. I just bought some Surfactant-Free Cellulose Acetate filters. They are supposed to be better even. Durable? I will find out. I just bought some corning .45 syringe filter steriles just to get by in emergency. For like a buck a piece. I am wasting a lot of money on these bottle filter systems.

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    Yeah the watmans are reliable but I hate sitting there squeezing them, im using the .22um size filters so it sterilizes the gear instead of having to bake it and damage the hormone. Just had 1 break at 3-4 psi

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