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    1. Top | #1
      lodro is offline
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      Yasaka Rakza 7 is doming the wrong way

      This rubber, Rakza 7 right after taking out of it's envelope has developed a dome.
      It curls up exactly the opposite way as it would when one uses the boosters on the sponge.

      I got another couple of rubbers (61 seconds) that are doing the same.

      When glued down using either revo3 or XVT glue-sheets , then left overnight in a press it comes out alright
      but within a couple of hours the rubber are "doming and come off the glue completely.

      Does this happen often and what would be the remedy ?

      thanks for you input
      lodroClick image for larger version. 

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      Last edited by lodro; 2 Weeks Ago at 01:58 AM.

    2. Top | #2
      yogi_bear is offline
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      Try waiting for 2 to 3 days before gluing. Also, is your blade sealed?

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      lodro (2 Weeks Ago)

    4. Top | #3
      lodro is offline
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      Thank you,
      Yes, the blade has been sealed and lightly sanded with 600grit...................long long ago.

      Are we expecting the rubber to come flat again ?
      Because while this one is new out of the packet, the 61 second rubber has been domed forever and whenever i check it it is still domed.

    5. Top | #4
      Konrad Bak is offline
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      No.
      Fastarc g1 has the same attitude.

    6. Top | #5
      yogi_bear is offline
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      also take note that Rev. 3 has some sort of speed glue-like effect though minimal. even if this is a new sheet, are sure this is a fresh batch or this has been sitting in a shelf for a long time already?
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    7. Top | #6
      Attitude is offline
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      My rakza 7 did the same and even worse.
      But it never got lose or even off the racket after gluing. The dome is acutally way too weak to peel itself off of a blade. Maybe you failed to glue propperly. Happens to the best

    8. Top | #7
      Tango K is offline
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      It’s modern rubber, not paper ))) nothing wrong in the photo. U might have just not put enough glue on it.

    9. Top | #8
      burhanayan is offline
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      I find this good for boosting. Dome flattens earlier.

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    10. Top | #9
      flash is offline
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      I have had Rakza 7 dome the wrong way new out of package before. I think that the booster they use at factory has dried up, or the rubber has been on shelf for long time, or around to high of heat, which ever the oil in sponge has evaporated.

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      lodro (2 Weeks Ago)

    12. Top | #10
      lodro is offline
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      Quote Originally Posted by Attitude View Post
      My rakza 7 did the same and even worse.
      But it never got lose or even off the racket after gluing. The dome is acutally way too weak to peel itself off of a blade. Maybe you failed to glue propperly. Happens to the best ������
      Thank you for your kind input.
      Yes indeed I have made 1 or 2 mistakes in my life before

      Thing is, I prepared both FH and BH rubbers together and the red Tibhar MX-.S sticks perfectly fine.
      I will let the Rakza out in the open air for a few days and then try again

    13. Top | #11
      lodro is offline
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      Quote Originally Posted by burhanayan View Post
      I find this good for boosting. Dome flattens earlier.

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      Thank you, so it would be perfect if i would boost - but I never have and unless forced at gunpoint i probably never will

    14. Top | #12
      lodro is offline
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      Quote Originally Posted by flash View Post
      I have had Rakza 7 dome the wrong way new out of package before. I think that the booster they use at factory has dried up, or the rubber has been on shelf for long time, or around to high of heat, which ever the oil in sponge has evaporated.
      I see . I did not know that these rubbers were factory boosted. So, it serves me right.
      As for the other points you are making, I have no control over these things. I pays me money and get what they give me.

      Thanks for your kind input

    15. Top | #13
      lodro is offline
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      Quote Originally Posted by Tango K View Post
      It’s modern rubber, not paper ))) nothing wrong in the photo. U might have just not put enough glue on it.
      Thank you.
      I used the same procedure and same amount of glue on both sides and the other side, a MX-s sticks fine

    16. Top | #14
      zeio is offline
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      Welcome to the club of Tensor where rubbers reverse dome like a loaf of bread.
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    17. Top | #15
      lodro is offline
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      Quote Originally Posted by zeio View Post
      Welcome to the club of Tensor where rubbers reverse dome like a loaf of bread.
      Thank you very much for your post.
      It helped me re-gain my sanity as i can now stop wondering what kind of mistake i made

      cheers
      lodro

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