Phosphoric acid ester formula promotes paint adhesion to difficult substrates, like galvanized steel and aluminum. Laser Etching Glass: This tutorial tracks my process of using various software programs and a laser etching machine, glass acid etch and glue with a base plate of LEDs to make the glass sculpture. Don't etch large areas: The etching is most successful when there is a very small border area around the letters. However, for larger commercial jobs, older concrete, or worn floors we always recommend grinding before epoxy installation. Acid Etching This reaction results in the removal of some of the silica from the surface of the glass object from the oxide matrix, leaving a roughened, frosted appearance. $79.96 $ 79. Your Host and Tour Guide: ... marine epoxy (boat building - wood / fiberglass repair) industrial coatings - garage paint - underwater epoxies - thick putties - tabletop resins and supplies since the early 1990's. The glass doesn't always etch evenly, and the imperfections are much more obvious in large areas. Etching primer is for metal only, it will cause problems if used on fiberglass. 4. FR4) plated on one or both sides with copper. More Buying Choices $74.96 (2 new offers) You can see that I taped very close to the letters. Custom Shop Premium Self Etching Acid Etch Primer, 1 Gallon - Ready to Spray Paint, Excellent Adhesion to Bare Metal, Steel, Aluminum, Fiberglass - Use on Automotive Car Parts, OEM Industrial Coating. Developed in the mid-1800s, acid-etched glass became popular for its ability to shield patrons in drinking establishments from view while letting in natural light. CLR is a strong acid, although I do not know if it is as strong as Muratic acid. Etching cream doesn't work consistently on large solid areas. 3. The sheets of 6mm float glass has been hand cut and laser etched twice … Victorian and Edwardian homes quickly adopted the look, and today, glass etching designs appear on windows, mirrors, even glassware. Ideal for rub throughs in primer prior to application of color and new bare metal panels. Epoxy Surface Preparation and Degreasing, Acid Etching Page Prepare surfaces for coating/painting with epoxy and other coatings. 2. Etching acid is dangerous. Most refinishers use hydrofluoric acid to chemically “etch” a porcelain or ceramic tile surface in an attempt to make their coating “stick.” Hydrofluoric acid is so strong … Dip the board into a bath of etching solution to remove the excess copper not protected by the toner. Transfer the PCB trace layout to the copper surface with an etch resist or toner. Wash creates tiny pores in the surface that helps bond the primers to the topcoat. A typical DIY etching process might look something like this: Start with a clean board of fiberglass (e.g. The 2k high solids primer will be fine over the places where you sanded through. FREE Shipping. They are both very strong acids. Etching acid doesn’t always work. Acid washing is the single most important step in refinishing porcelain to achieve a long-lasting bond. The reaction is not an overly rapid reaction, and so it is easily controlled to produce a useful artistic product. However, if the CLR did not clean out the scale, I don't think that Muratic acid will either. 4.8 out of 5 stars 31. But if it didn't harm the tub, I think you are okay to try the Muratic acid. Acrylic or fiberglass tubs are easy to wash by sanding, but porcelain or enamel tubs require a different process of abrading. 96. Acid etching a garage floor is a great solution for those who are installing the floor themselves and do not have access to industrial grinders. 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