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There has been some threads already dealing with rubbers hardness, but none is doing extensive measurements.
Having received many rubbers since April, i have a large panel of results I would like to share with you.
But first of all, science comes with good protocol. So what was mine ? I bought a Shore C Durometer, because it was the one advised for that kind of sponge, but also a Shore A because come here claimed a Shore C was not the right tool. Disclaimer : they were wrong. Shore A gives very little results, nowhere near the theoretical values (never above 25°).
So I used a Shore C Durometer. How ? As instructed by the user manual of course. But hey, there's a margin, and 2 people might not get the same result, because of their interpretation of the user manual. My results are, thus, not absolute values. But since I respected the same protocol for all the rubbers, the relative values are right. I also took between 5 and 8 different points of measurement on each rubber and made an average.
For some rubbers that I boosted, I forgot to measure before boosting, which makes the measurement irrelevant.
Here are my results. Only the sponge was measured :
When measure has not been noted, it's because I did not receive the rubber yet, but it's on its way. I'll update the table regularly.
I regret not having measure the rubber side too. Maybe I could do it with the rubbers being glued. Give my your opinion. Should I measure the rubbers glued on my blades ? (I won't unglue just for that)
Having received many rubbers since April, i have a large panel of results I would like to share with you.
But first of all, science comes with good protocol. So what was mine ? I bought a Shore C Durometer, because it was the one advised for that kind of sponge, but also a Shore A because come here claimed a Shore C was not the right tool. Disclaimer : they were wrong. Shore A gives very little results, nowhere near the theoretical values (never above 25°).
So I used a Shore C Durometer. How ? As instructed by the user manual of course. But hey, there's a margin, and 2 people might not get the same result, because of their interpretation of the user manual. My results are, thus, not absolute values. But since I respected the same protocol for all the rubbers, the relative values are right. I also took between 5 and 8 different points of measurement on each rubber and made an average.
For some rubbers that I boosted, I forgot to measure before boosting, which makes the measurement irrelevant.
Here are my results. Only the sponge was measured :
When measure has not been noted, it's because I did not receive the rubber yet, but it's on its way. I'll update the table regularly.
I regret not having measure the rubber side too. Maybe I could do it with the rubbers being glued. Give my your opinion. Should I measure the rubbers glued on my blades ? (I won't unglue just for that)
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