Sand the surface of the epoxy resin. Mary Coakley. Varnish. This web page is an edited version of the Resene Best System Selling training notes provided to Resene staff and is provided to enable you to gain a greater understanding of the substrates and paint systems you may encounter in your decorating project. It is used on boats so should work for this. Painting concrete, plasters and cement-based substrates - a "how to" guide. The first finishing tool on the slab pushes down rocks and brings the cream to the top of the concrete surface After pouring the concrete and screeding it level, it is time to begin finishing the slab, in this case, a small driveway addition. Both topside and bottom boat paint can be applied to fiberglass, metal and wood. Use either denatured alcohol or a 50:50 mixture of tung oil and turpentine as a last resort, as these products are harsh and can damage finishes. You can paint over epoxy resin to match the colour of the rest of the object it is applied to. To avoid contamination (and inferior results), do not use your varnish brush for any other purpose. You may have heard varnish used as a generic term for any finish, but traditional varnish describes an older form of finish that contains alkyd resin, oil, and solvents. 10. Outdoor, precast concrete water troughs, holding tanks, cisterns and bowls are subjected to interior water pressure as well as exterior hail, rain, snow and harsh sunlight. Livestock Water Troughs. Hi, not sure if you have this product available to you, but Yacht Varnish is excellent for outdoor work. Can You Spray Marine Varnish? If you plan to use another room, begin by mopping the floor and placing the item of furniture on plastic sheeting. Epoxy resin will hold its durability for a long time. Reply. Step 3 - Apply the Varnish Varnish can be applied in any of three ways: by brush, with a roller and pad, or by spraying. Yacht Varnish – Also called marine (or spar) varnish, this is a varnish that was originally designed for use on boats where the primary purpose was to ensure that water did not penetrate to the wood. Since it's not considered a VOC and HAP, you can use as much as you need for cleaning or to make your finishes work You probably don't use it very much, but you should be aware that acetone is becoming a more important solvent, primarily because it's the only commonly available solvent except water that isn't classified as a VOC or HAP. Next, tip the varnish by lightly stroking the woods surface while holding the brush at 45 degrees. Yes, you can spray marine varnish, and quality tools are key to the best result. ... velcro, or similar products. Use a brush or sponge to apply the paint. You can sand and paint epoxy resin yourself. Helpful. The epoxy resin helps build a strong, waterproof seal. 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