craig tufankjian
Posts: 308
Joined: 2004-02-01
Location: syracuse ny 13208
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HI WILLIAM,
THE PROPER METHOD FOR SANDING A VENEERED TOP IS A BUFFERING WIDE BELT SANDER, OR A HESSMAN VENEER POLISHER. THESE OF COURSE ARE EXPENSIVE BUT THERE ARE SHOPS WHO HAVE THEM. I AM A VENDOR FOR STICKLEY DOING PRIMARILY THE VENEERED TOPS FOR STICKLEY, I'M LOCATED IN SYRACUSE. I DONT THINK THE FINISHING DEPARTMENT USES THESE TYPE OF SANDERS FOR "SANDING" PER SAY, BUT MORE FOR POLISHING THE FINISH. THE TOPS I SUPPLY HAVE TO BE SANDED AND READY TO FINISH PRIOR TO REACHING THE FACTORY.
THESE LARGE MORE EXPENSIVE WIDE BELT SANDERS HAVE PRECISE DIGITAL CALIBRATION AND VACUUM HOLD DOWN BED TO PRECISELY SAND TO A CALIBRATED THICKNESS. AS WELL AS HAVE SEGMENTED PLATENS FOR THE OCCASIONAL ODD BALL THICKNESS.
IN MY EXPERINCE, ANY SANDER ROTATING IN A CIRCLE IS AN ACCIDENT WAITING TO HAPPEN. DYNABRADE'S AND STANDARD ORBITALS ARE FAR TO AGGRESSIVE. BEFORE YOU HAVE A CHANCE TO BLINK YOU COULD BE LOOKING AT SUBSTRATE.
WE USE A SPECIAL METHOD TO REMOVE VENEER TAPE . THIS METOHD DOES NOT INCLUDE SANDING , WETTING OR SCRAPING THE TAPE OFF. ONCE THE TAPE IS OFF, I SEND THE TOPS THRU A WIDE BELT SANDER, ONCE, ANY ONLY ONCE. THIS IS DONE NOT TO SAND THE SURFACE BUT TO LEVEL THE SURFACE. THE FACE WAS ALREADY SANDED PRIOR TO PRESSING THE FACE ON TO THE TOP. HOW? TWO PLY. I CANT STESS THIS PROCEDURE ENOUGH. IT'S FAR LESS EXPENSIVE TO THROW AWAY A FACE THAN TO TRY TO REPAIR AN FINISHED TOP. IT STILL HURTS BUT NOT AS MUCH. THE PROCESS IS A SIMPLE AND INEXPENSIVE ONE, AND IT YEILDS A BETTER PRODUCT.
ME ALSO MAKE EXTENSIVE USE OF VENEER TAPE, USE EVIAN OR AN EQUIVILENT. AS FAR AS WATER IS CONCERNED. DO NOT LEAVE WATER IN YOUR DISPENSOR , THE WHEEL BELOW THE TOP WHEEL GENERATES RUST IN THE WATER SO CHANGE THE WATER OFTEN. YOU'LL REGRET IT IF YOU DON'T. JUST WHEN YOU THINK YOUR SAILING ALONG, THERE IT IS , THE UNEXPLAINED BLUE OR BLACK STAIN ON YOUR LAY UP. CHEMICALS AND OTHER PROPERTIES IN REGULAR TAP WATER JUST DONT COOPERATE WITH SOME SPECIES SUCH AS CHERRY, MAPLE AND OAK.
ONCE YOU HAVE A LEVEL SURFACE, FINISH SANDER. THEN HARD BLOCK HAND SAND WITH CORK GLUED TO THE BOTTOM OF THE BLOCK. AFTER FINISHING USE A HARD BLOCK WITHOUT THE CORK ON THE BOTTOM. FOR A GOOD SANDED FINISH YOU CAN NOT AVOID HAND SANDING. HOPE THIS HELPS
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