It is not a perfect solution, but it works. Guide to Membrane -vs- Vacuum Presses. NEW Membrane presses typically start at $190,000 and can go up to as much as $600,000 depending on the features. I use a fuzzy an adhesive applicator roller from Wooster which you can buy at Home Depot. Build your own vacuum press and save big bucks! 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 … Unused glue can be returned to container. About Us About Us. works great with vacuum press. A vacuum bag will give the most uniform pressure. Shop-cut Veneers. 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. Laminating curved panels and bent laminations. 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. 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. It spreads the perfect amount of glue but it works best if you roll it onto both surfaces. It takes a lot of scaping to remove the glue. Additionally, a vacuum press actually draws air out of the cells of the wood, which is replaced by adhesive. 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. Free shipping. Our website offers several free plans for building your own vacuum veneer press. Assembly glue for furniture, cabinets, and general joinery. It's rigid glue line minimizes spring back. Or use UnibondOne which is a one-part glue that works well. Eliminates bleed through – Will stop bleed through on most unbacked commercially sliced veneer. It is also the recommended glue by the veneering and laminating industry. I find that the waterproof Titebonds II & III are a little less viscous than the original and therefore more prone to bleed through. Marc, I went to a school that taught us how to vacuum bag composites like fiber glass, and other materials. 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. Bruce Wedlock replies: You are using the wrong glue. Titebond Cold Press for HPL is specifically designed for laminating flexible materials and is not suited for other types of assembly applications. It takes a lot of scaping to remove the glue. 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. In both of these, they are formulated to not bleed through, but occasionally they do, in which case you can use a blocking additive. I've been searching for a glue with a long open time for quite some time. Also, keeping the panel under vacuum for too long with a water-based glue can cause mold spores to grow, producing unsightly stains. Any ideas on how to prevent or minimize this?— Steve Colello. 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 … 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. $28.95. The latest development from VLT is the Vacuum Frame Press. Use VAK-Bond 2000 veneering glue with 20-30 minutes of open time. We even used a play-do press to form it into long strings. Website maintained by DesignME Creative Group. The most popular size vacuum veneering bag is the 8'6" x 52". 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). Owain Harris replies: It’s possible that you are using too much glue. Whereas Vacuum Presses range from $50,000 upwards to $90,000. What we used to seal up the bags was a sticky play-do like material. Description. It allowed us to change the size of the area to be vacuumed. Richard Oedel replies: Use a different glue, and a blocking additive. Free shipping. 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. Unibond One is our newest offering in the Unibond family of gluing products. Longer open work time – extended open time required for most panel work. Or pony up a bit of cash and buy a small vacuum bag and used pump and use Titebond 1 - easier and faster. Figured wood in particular can be a real problem with bleed through as there is essentially exposed end-grain in places that just soaks up the glue. 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. 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 Clamp time for PPR is 5 hours. 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. But first make sure you are not putting too much glue on the surfaces. The very first vacuum press for use in the woodworking industry was invented by author DARRYL KEIL. Here is a short video on VAK-Bond 2000. This is a thin watery glue thats super strong and almost invisible! I don’t think that Titebond III is a great choice. A moulded and sometimes routed MDF core is sprayed with a polyurethane dispersion adhesive and allowed to dry. I can glue large … 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. 45min – 2 hrs depending on wood species, room temp and humidity. The most demanding woodworkers will want to consider the VS polyurethane vacuum bags. White and dark brown tints are availible for extremely blond woods as well as extra dark ones – One 8 oz. Personally I've never understood the need for Cold Press Glue as Titebond 1 works so well. 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. 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. ... Our patented “Thin Air Press” system is a safe and easy-to-use manual vacuum press system for wood bending projects. 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). Vacuum Forming Curved Panels By Rick Kemper. $28.95. 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. It’s an easy mistake to make. 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 Making curved panels in a vacuum press requires a reliable bag and evacuation system. Hide glue can not be used in a vacuum press unless the appropriate salt or urea is added. bottle of tint will color a full 5 gallon pail at full strength. stocks a variety of vacuum veneering bags sizes ranging from a small 4' x 27" bag, to a large 10'6" x 72" bag! Q.V.P. Less with heat. Roll glue out, ensuring you have put an even coat over the entire surface leaving no dry spots. Do not use when temperature, glue or materials are below 50°F. Any ideas on how to prevent or minimize this?— It is designed to make the process of vacuum pressing even faster and easier. For over 25 years, Vac-u-Clamp has been researching, developing and producing vacuum press technology from it’s Oceanside, California factory. 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. A wide variety of vacuum press glue options are available to you, such as other adhesives. 90 sold. These incredibly resilient laminating bags are ideal for commercial and industrial vacuum pressing. Start at $ 190,000 and can go up to 1/16 inch in thickness material... Furniture, cabinets, and a blocking additive save big bucks bag is the Frame! 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