Bruce Wedlock replies: You are using the wrong glue. If you are still having a problem, you could try using the original two-part Unibond 800 with a blocking additive that is designed specifically to prevent bleed through in figure woods. If you cover a panel smaller than 24×24" with a single piece of veneer, yellow woodworking glue works well. It’s an easy mistake to make. Also, keeping the panel under vacuum for too long with a water-based glue can cause mold spores to grow, producing unsightly stains. Longer open work time – extended open time required for most panel work. It is also the recommended glue by the veneering and laminating industry. Or use UnibondOne which is a one-part glue that works well. VENEER PRESS VISE GLUE CLAMP SCREW FOR WOODWORKING WOOD GLUING FRAME PRESSURE. Heavy Duty Veneer Vacuum Press Bag 48” x 70” ... (14) 14 product ratings - VENEER PRESS VISE GLUE CLAMP SCREW WOODWORKING WOOD GLUING FRAME PRESSURE NEW. Making curved panels in a vacuum press requires a reliable bag and evacuation system. Unused glue can be returned to container. Additionally, a vacuum press actually draws air out of the cells of the wood, which is replaced by adhesive. About Us About Us. Unibond One is a one part PVA adhesive specifically designed and formulated for wood veneering and laminating providing a extra hard glue line, long open work time and will … 45min – 2 hrs depending on wood species, room temp and humidity. $28.95. I can glue large … Shop-cut Veneers. Any ideas on how to prevent or minimize this?— But first make sure you are not putting too much glue on the surfaces. Here is a short video on VAK-Bond 2000. I will typically make sure to get it a little thicker around the edges just to be safe. It takes a lot of scaping to remove the glue. 90 sold. Free shipping. Personally I've never understood the need for Cold Press Glue as Titebond 1 works so well. It takes a lot of scaping to remove the glue. Do not use when temperature, glue or materials are below 50°F. Whereas Vacuum Presses range from $50,000 upwards to $90,000. PVA High Performance Wood Adhesive – A high solids poly vinyl acetate, water base, cross-linking Type II water resistant glue that has an exceptionally rigid glue line. No mixing – Use straight from the bottle. A small cabinet job, where a single sheet of figured veneer plywood would have cost me more than $400, motivated me to build my first flip-top vacuum press. Not recommended for exterior use or where moisture is likely. Description. JoeWoodworker's vacuum press plans have certainly made that affordable and fool proof, so I offered to provide a FAQ on the methods I use to make curved panels. If you want to use hide glue you can do it with old brown glue (room temp hide glue) in a press (either vacuum or a bunch of clamps). Once smoothed to the surface of the weave, the cloth will also help prevent the epoxy from being drawn into any wrinkles in the vacuum bag. Extra hard glue line – Minimizes crazing and cold creep. works great with vacuum press. A wide variety of vacuum press glue options are available to you, such as other adhesives. Each press comes complete with automatic temperature control, 375 watt infra-red heaters, single or double tray operation, Busch vacuum pump, interior fan cooling, double ribbed tray gasket for an airtight seal, pneumatic tray cylinder/support, PLC for storage and operation of program parameters, and a soft-touch HMI control panel. Eliminates bleed through – Will stop bleed through on most unbacked commercially sliced veneer. Clamp time for PPR is 5 hours. Depending on what you are trying to do, you might try Unibond 800, a two part adhesive which has a really hard glue-line, and a long open time to allow you to work with it. $28.95. This is a thin watery glue thats super strong and almost invisible! Unibond One is our newest offering in the Unibond family of gluing products. Neutral tan color – Suitable for lighter and medium tone woods. In both of these, they are formulated to not bleed through, but occasionally they do, in which case you can use a blocking additive. Our website offers several free plans for building your own vacuum veneer press. I don’t think that Titebond III is a great choice. Owain Harris replies: It’s possible that you are using too much glue. In addition to building furniture and cabinets for 20 years, Keil has written for leading woodworking publications, served as a technical consultant to woodworking facilities, and taught veneering classes in the U.S. and abroad. Roll glue out, ensuring you have put an even coat over the entire surface leaving no dry spots. It spreads the perfect amount of glue but it works best if you roll it onto both surfaces. I buy 2' wide nylon bags by the foot (as long as you need). What we used to seal up the bags was a sticky play-do like material. Vacuum Pressing Systems for Laminating & Veneering Vacuum Pressing Systems offers two types of veneering and laminating systems. stocks a variety of vacuum veneering bags sizes ranging from a small 4' x 27" bag, to a large 10'6" x 72" bag! Guide to Membrane -vs- Vacuum Presses. Titebond Cold Press for HPL is specifically designed for laminating flexible materials and is not suited for other types of assembly applications. The latest development from VLT is the Vacuum Frame Press. I find that the waterproof Titebonds II & III are a little less viscous than the original and therefore more prone to bleed through. Website maintained by DesignME Creative Group. Marc, I went to a school that taught us how to vacuum bag composites like fiber glass, and other materials. Membrane vacuum press film water based polyurethane reactive adhesive PU glue Membrane press adhesive is used for vacuum forming products like vacuum forming door, kitchen cabinet panel, it has excellent performance on heat resistance, fast drying, small particle diameter, endurance bonding strength and atomization It is designed to make the process of vacuum pressing even faster and easier. This press answers the demand from our customers for a top loading vacuum press with easy access. Enviormentally friendly – No harmful vapors. UnibondOne or Titebond Cold Press are one-part veneer glues formulated to resist bleed-through. The vacuum pressing “Bag” system which completely envelops the woodwork and the vacuum press table “Frame” system with a hinged lid that drops down over the wood panel being pressed. A moulded and sometimes routed MDF core is sprayed with a polyurethane dispersion adhesive and allowed to dry. Veneer softener It is not a perfect solution, but it works. You can also choose from construction, fiber & garment, and packing vacuum press glue There are 53 suppliers who sells vacuum press glue on Alibaba.com, mainly located in Asia. NEW Membrane presses typically start at $190,000 and can go up to as much as $600,000 depending on the features. Vacuum Forming Curved Panels By Rick Kemper. Less with heat. For over 25 years, Vac-u-Clamp has been researching, developing and producing vacuum press technology from it’s Oceanside, California factory. A vacuum bag will give the most uniform pressure. Or pony up a bit of cash and buy a small vacuum bag and used pump and use Titebond 1 - easier and faster. I use a fuzzy an adhesive applicator roller from Wooster which you can buy at Home Depot. The most popular size vacuum veneering bag is the 8'6" x 52". The very first vacuum press for use in the woodworking industry was invented by author DARRYL KEIL. Build your own vacuum press and save big bucks! Unlike mechanical clamping systems, a vacuum press applies even, consistent pressure over the entire surface of the workpiece, creating "intimate contact" between the veneer and the substrate. My design is an upside down version of Joe's frame press with a few changes/additions inspired by the commercial flip-top frame presses… We offer vinyl and polyurethane vacuum press bags in over a dozen sizes from 2x2 to 5x15 foot. The Pro-Glue product groups are: Urea Resin Wood Glue – A modified per-catalyzed dry powder resin available in a light or dark color, activated by mixing the powder into water. Other glues cure by water or solvent migrating away from the joint, VAK-Bond 2000 veneering glue cures by a chemical reaction for a rigid and high water and heat resistant glue line. There are instructions for building a system that is powered by an electric vacuum pump as well as instructions for using compressed air to create vacuum. The panel, with dried adhesive is then covered with a PVC foil and placed in a membrane or vacuum press which heats the foil, applies vacuum for decompression, applies pressure and reactivates the glue line. The most demanding woodworkers will want to consider the VS polyurethane vacuum bags. Perfect Score Technologies, LLC is a dominate provider of Automatic Glass Cutting and Processing equipment for IG (Insulated Glass) , glass fabricators and glazing professionalsPerfect Score Technologies is a low cost USA provider of high performance computer controlled (CNC) glass cutting systems, abrasive & water jet cutting machines, insulated window assembly machines and glass … White and dark brown tints are availible for extremely blond woods as well as extra dark ones – One 8 oz. Q.V.P. These incredibly resilient laminating bags are ideal for commercial and industrial vacuum pressing. Quality VAKuum Products, Inc. offers vacuum veneering bags in 4 different styles: 20 Mil and 30 Mil Vinyl, and 20 and 30 Mil Polyurethane. Shop-made Vacuum Press Bag A thin layer of fine mesh cloth creates a uniform finished look as the epoxy cures in the vacuum bag. Use VAK-Bond 2000 veneering glue with 20-30 minutes of open time. Adhesive application systems, Vacuum tables, Hydraulic presses Making the change from a manuel process to a fully automatic system can be a very big step. The principle of the working process is that vacuum builds up below the rubber membrane which then forms itself exactly around the workpiece providing the exact amount of pressure needed to bond the material on to the workpiece. Laminating curved panels and bent laminations. Section 1: Mounting Equipment (Note: newest listings appear on latter pages) #123- - Rotary Press and Glue Machines #124- - Potdevin / Assorted Gluers and Rotary Presses #114 - Potdevin Gluers and Rotary Presses #101- - Miscellaneous and Accessories #105- - Cold Vacuum Presses #107- - Corona Vacuum Heat Presses #118- - Dry Mount Presses #119- - Dry Mount Presses #122- - Dry Mount Presses Richard Oedel replies: Use a different glue, and a blocking additive. I would consider using either Titebond I or better yet, Unibond One, which is a one part PVA glue especially formulated for veneering and lamination. The press is easy to use; you glue and lay up the project, sheathe it with the breather netting, place all within the vinyl bag, seal the open end of the bag with the butyl rubber tape, then suck the air from the bag using the hand pump attached to the one-way valve. Remember that the glue-up should not remain in the bag longer than an hour when using cold press veneer glue, as it needs exposure to air for the glue to dry properly. It allowed us to change the size of the area to be vacuumed. For larger panels, or those with seams, Matt uses a one-part cold-press veneer glue [Supplies on Demand, below], “because its longer open time provides more time to work, and its thicker viscosity reduces squeeze-out through the seams.” Some manufacturers offer light-, medium-, and dark-colored varieties that help any glue line blend better with the veneer. I've used Titebond's hyde glue but often its to thick. Free shipping. As always, test first. Glue Bleed-Thorough on a Vacuum Press More often than not, when I remove a piece from a vacuum press, I get bleed-through of the glue (Titebond III) through figured cherry veneer (MDF substrate). Vacuum pressing should only be used for veneers up to 1/16 inch in thickness. It's rigid glue line minimizes spring back. Hide glue can not be used in a vacuum press unless the appropriate salt or urea is added. We even used a play-do press to form it into long strings. bottle of tint will color a full 5 gallon pail at full strength. I apply the glue to just the substrate using an adhesive roller that applies the glue in a thin layer. Assembly glue for furniture, cabinets, and general joinery. Any ideas on how to prevent or minimize this?— Steve Colello. ... Our patented “Thin Air Press” system is a safe and easy-to-use manual vacuum press system for wood bending projects. Surface both faces to be glued, apply a coating of urea resin to one face (5 mil), assemble and slide into the bag. Our Story Our Team Thin Air Press Patented Technology Sustainable Forestry Initiative Buy Local MVP 300 The MVP 300 membrane press is perfect for the pressing of veneer panels, curved workpieces, laminates and similar materials. I've been searching for a glue with a long open time for quite some time. 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