profile on undermount sinks

[Anylastwords]

for the past twenty five years or so we have been doing an "eased" edge on the top rim of our under mount sinks.(1/8 th round). in the last few years we have gotten more and more repairs for chips on the edges mostly from pots and pans hitting the rim. my question is, what are most fabricators out there doing for an edge on the under mount sinks?

[clhilde]

We had the same problem when we started up so we went to a 1/4 rnd and havent had a problem since

[Randy Gallion]

I do the same
More radius = less chips

[topshop]

I've always done a 1/4" bevel on my tops - No complaints from the customers. My brother in law still managed to chip my sinkhole at my house though.

As a repair guy I used to get lots of chip repair work off other fabricators work in my area who love the eased on stones like Ubatuba. I think some of them have smartened up and are making the profile a bit bigger because I get few calls for chips these days.

[mikedean]

ZR r=10.

10mm radius similar to 1/4 round.

[Rick George]

We give our customers the choice of square, 1/4 radius, or bevel and this is usually determined by the edge profile selected. If they don't care, we do 1/4 radius as we never get call backs with this one.

Now we only started doing this since got cnc 6 years ago, before that everything was square.

[Andy Ross]

We do a 1/8" to 1/4" radius depending on how big the chips are from cutting it out. Never had a customer say jack about the sink profile. And have never been called about one. I've often wondered if 1/8" radius is the most functional choice. I would be fine doing a 1/4 bevel but people seem overwhelmed with all the other options involved (color, sink, faucet, edge profile). I'm not in a hurry to add any more to the list.

[graffster]

At least a 1/4 to avoid the call there's a chip in my sink.

[BenJ]

The trend is moving towards larger radii or bevels, and for good reason.

[Curtis R. Marburger]

we been doing 3/8 for so long i fergot how long ,
we found by consensus among polishers at our shop 3/8 was the favorite to do

[Boru]

I have always used a 1/8 - 3/16 round and honostly have never had an issue with chipping. It usually occurs wherever there are sharp lines and angles. Make a point of reducing the transition between radius and face either by cnc or hand polish. Removing the sharp line will also reduce the chipping reports.

[Chris Mills]

1/4 round for us.

[Ahjort]

Our "standard" edge profile is the 3cm "A" profile, so we run this inside the sink cutout as well. It makes for a very forgiving edge when it comes to impacts!

[Matt Lansing]

A30 R10.

[politefab]

guess I'm the odd man out here i do a 3/4" aka half bull nose in our shop

[rtams]

1/4" round