Laminating and Solid Surfacing

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How to clamp V-Grooved Solid Surface C-Tops

David Smith  Member


We are looking for feedback on clamping the front edge of solid surface tops that are V-Grooved and then folded over. We use a profilematic V-grooving machine and have been having issues with how the seam looks after we apply glue, fold it over, then sand and polish. Most of the time we can see a seam line as well voids (sometimes large) within that seam where glue should be. Our clamping method is just to apply a thin bead of adhesive, fold the edge over, then just use tape to hold it in place.

This has been driving us nuts for a very long time now. We have tried changing the angle on our cutters, played with how much glue we put into the seam, used different tapes, etc...

Since we got machine i have felt that we got better results and seams that you can barely see by doing it the old fashion way which is the build up method. With the right color and pattern and if fabricated properly, it should be very difficult for someone to locate the seam. But with using this machine it is just so obvious that there is a seam and it drives me nuts.

So, is there anyone out there that also uses the V-groove method to fab solid surface tops and what method of clamping are you using to get successful results? Any feedback or recommendations would be great.

Also, we typically fabricate tops that are 25" wide with a 1 1/2" fron edge.

Thank you!


10/8/15       #2: How to clamp V-Grooved Solid Surfac ...
rich c.

Are you running a full strip of tape centered on the seam as a hinge before folding?

10/9/15       #3: How to clamp V-Grooved Solid Surfac ...
David Smith  Member


Im sorry,yes we are.

10/20/15       #4: How to clamp V-Grooved Solid Surfac ...
Dave Edgerton  Member

hot glue a beveled strip of wood on each length and use spring clamps. You are not getting the pressure you need by folding the edge over and you will see the seam. make the strip triangluar so that when you glue the strip the pressure from the clamp is perpendicular to the joint.

10/21/15       #5: How to clamp V-Grooved Solid Surfac ...
Dave Edgerton  Member

Like this

View higher quality, full size image (840 X 718)

10/21/15       #6: How to clamp V-Grooved Solid Surfac ...
David Smith

Dave, thanks you for the tip! I will try this the next time we run solid surface throught the shop, which will be soon. The only problem with that method is how much labor is added when your doing 20 tops...

10/28/15       #7: How to clamp V-Grooved Solid Surfac ...

Something you might check...on our Profilematic, the aluminum anvil roller was poorly machined. The bearing pockets were not even remotely concentric to the outside diameter. This caused the v-groove to vary in depth for every revolution of the roller. A local machine shop trued it up for us and the results were much better.

10/29/15       #8: How to clamp V-Grooved Solid Surfac ...
David Smith

Matt, Thank you for your response. I WILL look into this. I just looked at that part and it does seem to have some damage to it already. And it makes sense that if it's off, so will the depth of your cut.. Great response..

10/29/15       #9: How to clamp V-Grooved Solid Surfac ...

David, Glad to help.

Regarding your original question on how to clamp the miter-folded edge; please see the attached sketch. I have a couple benches configured this way. Fast, easy and perfect edges every time. 1-5/8" tall curb w/ 1/4" foam. A 4-5/8" curb is used for folded back splash.

Good luck to you.


Click the link below to download the file included with this post.


10/29/15       #10: How to clamp V-Grooved Solid Surfac ...
David Smith

Matt, do you clamp the top in place?

So, you just fold the edge over and then push it up against the curb?

10/29/15       #11: How to clamp V-Grooved Solid Surfac ...

Large (i.e. heavy) tops just push in place. Sometimes a small one needs a clamp.

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