Best ball plug??

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Posts: 572
Joined: August 11th, 2014, 8:07 pm
THS Average: 225
Positive Axis Point: 5.75" x + 3/8"
Speed: 17+ off hand (camera)
Rev Rate: 375
Axis Tilt: 12
Axis Rotation: 45
Heavy Oil Ball: Radical Guru Master, Track Paradox
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Re: Best ball plug??

Post by stevespo » April 26th, 2018, 4:25 am

The few times I've had problems with cracking, I think it was due to over mixing (really fussing over the color) and introducing a lot of air bubbles. I also fill the big thumbs in 2 parts.

How warm is your shop?

The air temperature seems to play a big role in how hot the mix gets and how long it takes to cure. In the winter the shop is 65F, and I need to increase the hardener a little bit (+10%). In the summer (temps more like 75F) I may decrease it a little, or the fill gets a little brittle. This is using 3:1 Pro Choice 6 hour from Innovative.

Other things that seem to improve results - sand hole for good mechanical bond. Blow out and vacuum. Clean area with acetone. I also wait 24 hours or more before touching it, although I might cut it back to within 1/32" and let that sit over night as well.

18-19 mph (15.5-16.5 on monitor), 375 rpm, PAP 5 1/2 x 3/8 up, AT: 12*, AR: 45*

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Positive Axis Point: 15 15/16 x 3/16
Speed: 13.5 (Qubica)
Axis Tilt: 13
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Location: Hawesville KY/Tell City IN

Re: Best ball plug??

Post by JohnP » April 26th, 2018, 3:43 pm

Depending on how deep the hole is, with that large a diameter you may have to plug it in three steps. -- JohnP

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Joined: August 31st, 2014, 8:00 pm
THS Average: 190
Positive Axis Point: 5.625" x 0
Speed: 17 off hand
Rev Rate: 360
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Re: Best ball plug??

Post by snick » April 27th, 2018, 12:29 am

I use CS Hybrid to fill large holes to 3/4 depth, then top it off with Techline.
Benchmark Bowling Pro Shop

PAP: 5.625" x 0
SPEED: 17mph at release
AR: 55º
AT: 7º

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