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Anyone ever use double-sided tape for sacrificial tops? (RAS top or other scenarios)

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Forum topic by williamhdixon posted 04-04-2019 12:18 AM 436 views 0 times favorited 2 replies Add to Favorites Watch
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williamhdixon

17 posts in 1109 days


04-04-2019 12:18 AM

Topic tags/keywords: radial arm saw ras double sided tape sacrificial top

Hi all,

I’m in the process of tuning my Radial Arm Saw, and replacing the top (3/4 ply main top, 1/4 ply sacrificial). This is the first time I’ve replaced the entire top, usually I’ve just replaced the sacrificial top and fence. But the main top needs replacing this time. (It’s the original flakeboard top that came with the saw 30 years ago, and it’s getting real soft around the edges.)

So far, I’ve always attached my sacrificial top with small brads, and just tried to stay away from the normal saw paths. But it occurred to me that if I tape it down, I wouldn’t have to worry about hitting a nail with the saw blade. I asked the manufacturer of the tape (XFasten) how it would hold up if it holds 2 boards together for years, and they say it should work just fine. But I’m not 100% sure they really understood what I was asking.

So, I figured I’d ask here.

Has anyone here ever used double-sided tape for long term use? If so, how did it work? Did it keep the boards secure the entire time? Did it release okay when the time came?

Thanks for any feedback.

Bill


2 replies so far

View John Smith's profile

John Smith

2721 posts in 1042 days


#1 posted 04-04-2019 10:37 AM

no – I have not used it. only the 1/4” material like you described.
but – using the double faced tape may be an issue when it comes
time to replace it with adhesive that will not come off.
I would experiment first. make an insert section where the blade makes
the most contact (damage) to the table and attach that panel with D/F tape.
not the whole panel. attach the rest of the sacrificial layer with screws
out of the way of the blade’s travel lanes.
let us know how it turns out for you.

I bought a new Craftsman RAS back in the late ‘70s and it got a LOT of use.
I sold it when I was transferred overseas with the military. I often see the
same vintage model for sale here and there and they all seem to have the same
problem of heavy use where the arm does not clamp tight to cut true angles.
all in all, it was a good saw.

.

.

-- there is no educational alternative to having a front row seat in the School of Hard Knocks. --

View Fred Hargis's profile

Fred Hargis

6497 posts in 3372 days


#2 posted 04-04-2019 10:46 AM

My sacrificial tops are always 1/4” MDF, and I always flip them over (once) before replacing. Any double coated tape that will hold it down will also damage the surface not allowing me to flip it over. So I don’t use it. The only nails I put in are a couple of pin nails near the center of the back (either side of the saw kerf), so far that’s never caused me a problem. The corners and edges are less likely to catch the blade, but I still use solid brass screws (small ones) so flipping and /or replacing it is a fairly quick job.

-- Our village hasn't lost it's idiot, he was elected to congress.

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