Ground Glass
How do I open the stuck plastic stopper of a wide neck ground glass reagent bottle?
(its brand new!)
First off, you could send it back if it’s brand new. First, though, try warming it. Hot water is often good enough. You might then be able to get it loose (does depend somewhat on the reagent you’re dealing with… I wouldn’t try it with something really reactive). Often a few gentle taps can free up a stuck stopper, too… be careful, though, you need to hit it hard enough to make a difference, but not so hard as you break it.
Good luck!!!
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Ground Glass Focusing View Sun Hood/Shade For Horseman 4×5 Large Format Camera $95.99 |
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New Ground Glass Focusing View Sun Hood/Shade For Linhof Technika 4×5 Camera $95.99 |
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New Ground Glass Focusing View Sun Hood/Shade For Toyo 4×5 Large Format Camera $95.99 |
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Ground Glass with Grid for Any 2×3 6×9 Camera $17.99 |
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Ground Glass for Any 2×3 6×9 Camera $11.99 |
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Ground Glass for any 4×5 Camera $16.99 |
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Ground Glass for Any 4×5 Camera with Grid $26.99 |
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Hasselblad Ground Glass Adapter – Excellent + $180.00 |
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Sinar F 8X10 frame, no ground glass $75.00 |
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Mamiya Ground Glass Back Sheet Film Holder for Universal Press Super 23 Camera $99.00 |
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ground glass holder for DIY static 35mm DOF adapter $59.00 |
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HASSELBLAD V TYPE 500C/M CAMERA MODEL FOCUSSING SCREEN GROUND GLASS CLEAN POUCH $49.99 |
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Meter on the ground glass with the Vintage Gossen Microsix-L $59.95 |
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Pacemaker Speed & Crown Graphic 4×5 Spring Back with Ground Glass $24.95 |
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4.5cm x 6 cm NEW! GROUND GLASS, Buy it Now!!! $12.00 |
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Mamiya Model P Focusing Hood Universal Ground Glass w/ Graflock For 4×5? $259.99 |
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Feather-Lite Adaptor for American Films, Hollywood Photo, w/ Ground Glass $14.00 |
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LINHOF TECHNIKA 8x GROUND GLASS LOUPE +CASE CLEAN NICE $125.00 |
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Printex 4×5 View Camera Spring-back Ground Glass Focussing Back with Hood $34.99 |
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11X14″ GROUND GLASS: Custom made for Large Format Cameras $45.00 |
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8×10″ GROUND GLASS: Custom made for Large Format Cameras $28.00 |
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Linhof 4×5 Ground Glass – Gridded – Excellent! $75.00 |
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11″x14″ NEW,Ground Glass,corners clipped,BUY IT NOW $58.95 |
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11″x14″ NEW,Ground Glass,highest quality BUY IT NOW $54.95 |
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Toyo View/Omega 4 X 5 Revolving Graflok Back. No Ground Glass. 10999 $229.00 |
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4×5 Ground Glass with Clipped Corners and Grid for Cambo $26.99 |
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4×5 Ground Glass with Clipped Corners for Cambo $17.99 |
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4×5 Ground Glass with Clipped Corners and Grid for Busch $26.99 |
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4×5 Ground Glass with Clipped Corners for Busch $17.99 |
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Cambo / Calumet 8X10 Ground Glass Back $179.00 |
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BEATTIE INTENSCREEN 8×10 INCH GROUND GLASS WITH GRID $95.00 |
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ANTIQUE & RARE – THE WATCH CAMERA BY EXPO, WITH GROUND GLASS FINDER $900.00 |
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ARRI 16mm Ground glass TV 1:37 $50.00 |
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ARRI 16mm SR3 Ground glass TV 1:33 $50.00 |
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ARRI 16mm Ground glass TV 1:33 $50.00 |
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ARRI 16mm Ground glass TV $50.00 |
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ARRI 16mm Ground glass TV $50.00 |
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Ground Glass Focussing Hood MAMIYA PRESS CAMERA $169.99 |
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Omega Toyo-View 4×5 Graflok Spring Back with Grid Ground Glass (black) $60.00 |
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4 Pieces Ground Glass 1 3/8″ x 2″ x 1 1/8″ Thick $14.99 |
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1 Piece Ground Glass 1 3/32″ dia 1/16″ Thick $14.99 |
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Redrock Micro M2 35mm Lens Adapter w/ Nikon mount and extra ground glass $100.00 |
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4×5 Toyo-View Graflok Spring Back with Grid Ground Glass $79.95 |
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Wooden back for stereo camera Mentor 46×107 mm with ground glass viewer $39.00 |
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Focusing Back with Ground Glass Genuine 56mm x 72mm for Linhof Camera? $11.50 |
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NEW GENUINE ORIGINAL PRAKTINA GROUND GLASS CAMERA FOCUSING SCREEN $29.99 |
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Ground Glass Screen for 4×5 camera Toyo Linhof Sinar $30.99 |
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ARRI ARRIFLEX GROUND GLASS TV-ISO BL 35 NEW / RARE LOOK $565.25 |
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ARRI ARRIFLEX GROUND GLASS 1.85/TV GLOW 35 BL4 ARRIGLOW NEW / VERY RARE LOOK $649.00 |
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TOYO LARGE FORMAT GROUND GLASS LOUPE MAGNIFIER $19.95 |
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Toyo 4×5″ Back w/Ground Glass and Bright Screen $85.00 |
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Graflex 3 1/4 x 4 1/4 Ground Glass Focusing Spring Back w/Hood $9.95 |
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Polaroid MP-4 Standard Ground Glass 44-50 Focus Screen $75.00 |
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Focusing Screen(ground glass) for 35mm DOF adapter $23.00 |
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Replacement Ground Glass for Letus Extreme $35.00 |
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Original Special Linhof Ground Glass 4X5 + Frame $198.00 |
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Custom sized ground glass 3 micron hand ground up to 30mm x 40mm $29.90 |
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Custom sized ground glass 3 micron hand ground up to 60mm x 60mm $39.90 |
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Fresnel Screen and Ground Glass w/ grid for 4×5 Sinar F1 F2 P1 P2 Cambo Camera $53.00 |
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4×5″ Ground Glass to fit Sinar Cameras (and other brands) $25.00 |
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Used Graflex G+ Camera with Rodenstock 220mm f6.6 Lens and ground glass $1,399.99 |
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SCREW MOUNT SPEED-O-COPY GROUND GLASS FOCUSING ATTACHMENT FOR LEICA $55.00 |
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Ground Glass Focussing Hood FOR MAMIYA PRESS CAMERA $159.99 |
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Deardorff 5×7 Ground Glass, grid lines and logo, NEW! $95.00 |
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Deardorff 5×7 Reversible Spring Back, new hardware and ground glass with logo $295.00 |
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5×7 Large Format Camera Ground Glass Focusing Screen $49.99 |
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8×10 Ground Glass, with 10mm GRID, NEW, Highest Quality $44.95 |
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8″x10″,Ground Glass, With 10mm GRID, corners clipped,NEW!!BUY IT NOW $48.95 |
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4″x5″ CROWN GRAPHIC Ground Glass with 10mm grid, “drop in” $35.00 |
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5″x7″ GROUND GLASS with 10mm GRID,Highest Quality,BUY IT NOW!!!!!! $40.00 |
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GRAFLOK Ground Glass for 4×5 with 10mm GRID ,”drop in” new product $35.00 |
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4×5 Ground Glass with 10mm GRID clipped corners .NEW PRODUCT ,BIN $35.00 |
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NEW 4″x5″ Ground Glass with 10mm Grid for BUSCH PRESSMAN $35.00 |
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4″x5″ GRAFLOK Ground Glass with 10mm grid,”drop in” new product $35.00 |
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2 1/4″ x 3 1/4″ GRAFLOK Ground Glass with 10mm Grid,NEW PRODUCT $30.00 |
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2 1/4″ x 3 1/4″ GRAFLOK Ground Glass ,NEW PRODUCT $15.00 |
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55mmX168mm GROUND GLASS with 10mm Grid for LINHOF 617 $45.00 |
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GROUND GLASS CAP’ for BOLEX H16 NON-REFLEX 16MM MOVIE CAMERA PROTECTION CAP! $4.99 |
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3 1/4 x 4 1/4″ ” GROUND GLASS with 10mm grid.New product, Buy it Now!!! $34.00 |
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8 1/4″ x 9 15/16″ CAMBO Ground Glass with 10mm Grid,new Product $64.95 |
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6 1/2″ x 8 1/2″ Ground Glass with 10mm Grid,new Product $42.00 |
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Custom Sized 4×5″ Hand Ground Glass Focusing Screen w/ 1/2″ Transparent Grid $34.99 |
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6 1/2″ x 8 1/2″ Ground Glass with 10mm Grid,corners clipped .New Product $44.00 |
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2 1/4″ x 3 1/4″ GRAFLOK Ground Glass ….NEW PRODUCT $14.00 |
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8×10″ Ground Glass for CAMBO 8×10 (8 1/4″x9 15/16″) $45.00 |
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Spectra Ground Glass Photoreader Photo Research Corp $9.99 |
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Sinar Fresnel 4×5 P P2 F F2 X Ground Glass Accessory $94.95 |
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3 1/4 x 4 1/4″ ” NEW! GROUND GLASS, Buy it Now!!! $16.00 |
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NEW 4 x5″ Ground Glass,Corners clipped, Buy it Now!!!! $20.00 |
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3 1/4 x 4 1/4″ GROUND GLASS, Buy it Now!!! $16.00 |
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4×5 Ground Glass with corners clipped $20.00 |
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4″x5″ SPEED GRAPHIC, Ground Glass,NEW!! “drop in” $16.00 |
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8″x10″ NEW,Ground Glass,corners clipped 45 DEGREES $28.95 |
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4″x5″ GRAFLOK optical spacer glass,NOT GROUND GLASS “drop in” $12.00 |
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4″x5″ CROWN GRAPHIC, Ground Glass, “drop in” $16.00 |
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8×10 Ground Glass, NEW, Highest Quality $24.95 |
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8″x10″ NEW,Ground Glass,corners clipped,BUY IT NOW $28.95 |
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6 1/2″ x 8 1/2″ NEW GROUND GLASS,NEW,BUY IT NOW!!!!!! $24.95 |
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4″x5″ GRAFLOK Ground Glass,”drop in” new product $16.00 |
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8″x10″,Ground Glass,corners clipped,NEW!!BUY IT NOW $28.95 |
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Stone Ground Opaque Messy Single Rod $3 Getting Messy Has Never Been So Rewarding. Delphi artists adore the incredibly vibrant colors you get from Messy glass. Rod is about 13 long, thickness varies. Color may vary from batch to batch. 104 COE. Sold per piece, buy only what you need. These rods are imported and have long lead times. Delphi regrets we are unable to backorder this item. |
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Spring Triptych Stained Glass Window $324.95 Stained Glass Panels – Studio Craftsmanship and Original Designs A trio of panels depicting flowers of spring in iris purple and snow white are depicted on this beautiful Meyda Tiffany original window. Each panel has a textured white ground and is framed in dusky sky blue. The window is handcrafted utilizing the copper foil construction process and stained art glass and has brass mounting bracket and chains included. This panel measures 14 high x 25 wide. Every Meyda Tiffany piece is a unique, handcrafted work of art. Natural variation in the glass and finish make each and every one a masterpiece all its own. Photographs are a general representation of the product. Colors will vary. From Supplying the Tiffany Studio to Your Home Meyda Tiffany is known for their authentic Victorian styles, attention to detail, and quality that speaks for itself. Although founded in 1974, the Meyda Tiffany and 39;s roots actually date back to the early 1900s, supplying Louis Comfort Tiffany and Tiffany Studios with lighting products, and creating the original Coca-Cola stained glass lamps. Meyer Cohen and wife Ida (whose names were combined to make the company name Meyda) founded their first studio with a devotion to stained glass art and dedication to quality. Still family-owned and based in Yorkville, NY, their son Robert runs the company on the same strong principles. |
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Wall Sconce Hardware Kit $132.95 Combine artistic elegance and functionality with slumped glass wall sconces. Finish glass art created with stainless steel wall sconces 4270 and 4271. Easy-to-install hardware adjusts in width to fit your glass and gives a professional look to your sconce. Includes hardware bracket frame, socket fixture with ground, 2 washer nuts, 4 reset screws, 1/16 alen wrench and instructions. Maximum 100w, UL approved socket. Artist Michele Drobney created this wall sconce using X63452 Blackberry Cream OpalArt glass. |
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3/4 Inland Super Fine Bit $30.95 Super Fine grinder bits have an extremely fine grit diamond that produces a very clean, chip free ground edge. Super Fine bits are an ideal choice when preserving the integrity and smoothness of the ground edge is important. More usable diamond makes them longer lasting. |
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1 Inland Super Fine Bit $34.95 Super Fine grinder bits have an extremely fine grit diamond that produces a very clean, chip free ground edge. Super Fine bits are an ideal choice when preserving the integrity and smoothness of the ground edge is important. More usable diamond makes them longer lasting. |
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5 Polishing Disc $66.95 5 inch polishing disk from Inland. Material in the pad runs cool on the glass which allows more pressure and longer runs on polishing without the worry of heat build-up and breakage. It also stands up to an amazing degree of wear; outlasting the synthetic felt material by two to three times. Disk has a replaceable surface. Product Uses Polish ground edges on glass, fused and other hot worked projects Polish beads ends and other torch worked projects Polish new or reworked beveled surfaces Remove light scratches Image courtesy of Inland. |
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Duralife Lead Shears $9.95 Cutting your pattern apart with lead shears removes just the right amount of pattern to allow for lead. Projects fit together properly without growing. Precision ground stainless steel blades hold an edge longer. |
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1/4 Inland Fine Bit $29.95 Grinds tight inside curves easily. Works best when used with Second Story Work Surface 7225. Fine Grit grinder bits leave a clean, virtually chip free ground edge and work well on softer, more delicate glasses and materials. The more usable diamond makes them longer lasting. |
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Natural Remodeling For The Not-so-green House $24.95 To have a home thats more in touch with the earth, you don and 39;t have to start from the ground up. It and 39;s possible-and more environmentally friendly-to go green by renovating an existing home. With the help of Carol Venolia, an award-winning architect and bestselling author, and Kelly Lerner, a world-famous innovator in the field of sustainable development, even the least mechanically inclined person can make a difference in his or her dwellin…and to the planet. The two have produced a remarkable book—packed with information and photos, and the first ever in full color to cover the subject. Its lush and exquisite to look at, filled with motivational case studies and informative graphics, and completely user-friendly. |
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Magnalight Adjustable Light Magnifier $60.95 MagnaLight is an ideal light and magnifier for grinding, sawing, drawing or working with small items or intricate details. It comes with two adjustable mounting clamps which can be attached to any horizontal or vertical surface up to 2 in thickness. Two mounting clamps are provided so it can be moved quickly from one area to another without having to reinstall a clamp. The head features a swing away, 3 1/2 precision ground optical magnifier and revolves a full 360º. The head can be adjusted to a maximum vertical height of 16 above the mounting surface and rotates in a ball joint to an infinite number of positions. |
Replacing The Glass Face Of Your Watch?
Watches need to have glass facings on them so that you can read the time right? But no matter how careful you are about them, the glass does get dinged and dented with frequent daily use. It’s just a normal part of wearing a watch. But the larger the scratch, the worse the glass facing looks and eventually deeper scratches weaken the glass face causing cracks and breaking. The cracks may also allow dirt and water to seep into the watch dial, damaging it beyond repair. If you are worried about finding the exact replacement for your glass facing, I think this article can help you out tremendously.
Wrist watches- Most crystals for wrist watches are specially designed for them. The most common shape is round but you do get square, rectangular, and oval shapes which are cut to fit the watch face. The watch glass facings can also be made of several different materials like plastic for acrylic watches, glass for designer gold and dual-toned watches and of course the high-strength synthetic sapphire.
The acrylic crystals are the easiest to source and replace as they can be easily manufactured out of plastics and ground to fit any shape. If the acrylic facing gets cracked or scratched, special pastes can be used to remove the scratches and repair the cracks without removing the acrylic from fused cases. Most acrylic glass facings are fused in to the casings and cannot be removed. They also do not have the gasket to prevent water seepage and very water permeable.
Glass on the other hand is mostly available in the form of round facings which are used on round watch faces. But designer watches may need replacement elliptical, square, or even oval glass faces that are not easy to make or find. Watch makers then have to file each round glass piece to shape to fit individual watch faces. If the work is not done carefully, there are chances that there will be a leakage so watchmakers use an adhesive to seal the reworked glass face in to the casing. But almost all mineral glass facings have a gasket next to them to allow for sealing and moisture control.
Sapphire crystals are the best in the market at present but they are expensive. These crystals are commonly used in high-precision time pieces like dive watches or high-quality time pieces like Patek Philippe. The sapphire crystals are difficult to manufacture but are really resistant to pressure scratches and water leakage. This makes them well worth the money and effort to fit them into place. Sapphire crystals have to be locked in place to take in a lot of pressure. Most of them have tension rings to lock them in place and prevent seepage.
Do check with the company to find exactly what you need to replace the glass facings on individual models.
About the Author
Replacing glass facings on watches can be difficult and a little expensive too, but at https://www.watchtool.co.uk/consumables-glasses-c-293_294.html?osCsid=7e72d831355ab9bcdb3e8d54a2d79b3b you will get the latest in glass facings and info on how to do it right.
Mt. San Jacinto College to break ground in Banning
An artist’s rendering depicts modular buildings, which are designed to have a permanent appearance. Despite the green grass portrayed in rendering, the college intends to use drought-tolerant landscaping to complement its intention of being a model campus for environmental sustainability.