Rottenstone & pumice use info


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Rottenstone & pumice use info

  1. 1. Fax: 707-877-3566 •• Toll Free Order Desk: 800-245-5611 •• Information: 707-877-3570 Restoration, Repair, & Finishing Supplies ROTTENSTONE (premium grey, 1 lb.) for Fine Furniture FINISHING, POLISHING, and CLEANING Premium Grey Rottenstone is used to make antiquing wax and to patinate gilt and gilt finishes, to dust mats in the framing trade. An excellent recipe for glass polish (from The Framer’s Answer Book by Paul Frederick) is: 1 Pint methanol or isopropanol alcohol 2 Tablespoons Rottenstone 1 Tablespoon Ivory liquid Shake together in a gallon jug filled with water. Use for polishing glass, the water & alcohol dissolves dirt and grease, the rottenstone polishes and the liquid detergent acts as an anti-static. Rottenstone is used as the final rubbing compound to obtain a high gloss finish on lacquer, varnish, and shellac surfaces. All Rubbing operations should take place after the film finish is completely cured. Used with furniture polish as a carrier, rottenstone can remove difficult dirt and grime from furniture and woodwork. DIRECTIONS For Polishing Use Prepare the surface properly with LIBERON Supplies Pumice. If oil was used for rubbing down the surface, allow it to harden for one week before proceeding with the ROTTENSTONE polishing. For shellac finishes use only oil as a lubricant for polishing, (shellac is not waterproof). For other surfaces choose water or oil to lubricate the surface. Water will give a slightly more aggressive action. Use Paraffine Oil or Mineral Oil or, the lighter viscosity, Rubbing Lubricant when using an oil carrier. Using a felt rubbing block at least 1/2 inch thick soak the lubricant into the pad, (or stretch thinner felt over a wooden block to obtain the necessary flat surface) and dip the block into the rottenstone. (An old felt hat cut and folded into the appropriate size and shape is a good solution for difficult shapes or surfaces). On horizontal surfaces, the rottenstone may be sprinkled on with a shaker can. Using moderate pressure rub with the grain using long strokes. Inspect the work frequently as to guard against cutting through the finish. Continue until the desired surface and gloss is obtained. Wipe the sludge away with a soft damp cloth. If oil is used finish off the surface wiping with a cloth dampened with naptha to remove all traces of the oil. Allow the finish to sit and harden for 4 to 8 hours. Apply a protective coat of wax and the finish with a soft cloth and BLACK BISON™ Cabinetmakers Liquid or Paste Wax Polish. (Do Not Use Polishing Products Containing Silicones) ROTTENSTONE (or 6/0 PUMICE, for less sheen) is a very good cleaner for grimy dirty furniture, use BLACK BISON™ Liquid Wax, Rubbing Lubricant, or Wood Cleaner & Wax Remover as a lubricant for cleaning finished wood surfaces. lll See reverse for Pumice Rubbing Procedures LIBERON™/starstar™Supplies, P.O. Box 86, Mendocino, CA 95460 • 707-877-3570 9/20/95 -- 1 of 2
  2. 2. PUMICEPUMICEPUMICEPUMICEPUMICE for Hand rubbing of Gloss furniture finishes to a matte finish & to prepare surfaces for polishing with rottenstone. Fine pumice may also be used as an abrasive cleaning agent for extremely grimy wood finishes when mixed with LIBERON™ Wood Cleaner & Wax Remover. On clean surfaces Black Bison Liquid Wax may be used as a lubricant to slow and control cutting action. SUPPLIES: In addition to the pumice in grades #3/0 & 6/0 -- You will need the following supplies to obtain a proper hand rubbed finish and surface. 1 - felt rubbing block 2 - Rubbing Lubricant or mineral oil to lubricate the surface 3 - soft, clean cotton cloth or sponge 4 - Naptha to remove all traces of oil DIRECTIONS FOR USE (A word of caution is in order; a clean work area and careful storage of all rubbing supplies will prevent contamination of the supplies that could cause scratches in the finish.) The level of finish obtained, [eggshell, flat, matte, satin, semi-gloss, gloss, or (high polish, using Rottenstone) is a matter of subjective judgment and to a certain degree is controlled by the rubbing block, the grade of pumice, the lubricant and the craftsman’s technique. The Gloss film finish must be well cured. Rubbing blocks may be of hard felt 1/2 thick or thicker. Thinner felt or clean burlap of several layers may be stretched over a small pine block of approx. 3 x 5 inches to assure proper leveling action while rubbing flat surfaces. Molding may be rubbed with shaped and covered blocks or with a stiff bristle brush. The short bristle brush is almost a necessity for rubbing complex carved areas. Strips of hat felt or an old towel saturated with oil and the rubbing compound work well on turnings and spindles. For large flat surfaces and commercial work air and electric rubbers are available. (Orbital sanders may be used for polishing; to prevent contamination from other shop operations & the possible damage to the surface, a special machine should be reserved with a separate pad for each grade of rubbing compound.) A little experimenting will help in finding the best tools for each particular surface or area. [KEEP rubbing blocks used with different grades of pumice separate and use them with that grade only to avoid contamination of the finer grades.] Lubrication for the finished surface is provided by soaking the pad in mineral oil. Water may be used as a lubricant for faster cutting action. Do not use water to lubricate shellac. Oil or Rubbing Lubricant is safe on all finishes and its slower cutting action allows more control. The pumice may be sprinkled from a shaker can or the damp felt may be dipped in a shallow jar lid or tray of pumice, it’s a matter of preference. It is recommend that open trays of pumice be discarded after each polishing session to prevent contamination of your fresh working stock. Always start with the coarser grades then graduate to finer grades and rottenstone (see reverse) for higher degrees of polish. NOTE: When applying finish, sanding sealer coats should be cut down and denibed with LIBERON #00 STEEL WOOL final coats of finish should be cut down with LIBERON #0000/000 STEEL WOOL or the appropriate grit abrasive paper. Rub with the grain and apply only slight pressure, (panels may be rubbed across the grain at first). To obtain effective and even results work in a systematic manner from left to right and from top to bottom. KEEP THE ABRASIVE WET by adding more lubricant and renew or change the rubber when necessary to avoid the sludge from forming hard corns or deposits on the rubbing felt that will scratch the surface. Wipe and inspect the surface frequently. - Proceed with caution especially near the corners and edges ,as it is easy to cut through the finish in these areas, until the entire surface shows a very flat and even matte finish. Thoroughly clean the entire piece with a soft clean cloth free of any seams or stitching. Use naptha to clean the surface if mineral oil is your lubricant. Use plenty of fresh water to clean when water is used as the lubricant. Proceed to the next finer grade of pumice and repeat the same process until the degree of finish meets your approval. (Remember if the previous rubbing leaves a noticeable uneven sheen, scratch marks, or nibs, the following finer grade of abrasive rubbing will be more difficult and counterproductive) For a higher degree of polish see the Rottenstone instructions (on reverse). After rubbing, allow the finish to harden for 48 to 72 hours depending on weather conditions. To protect your finish from surface abrasions, dirt, water, and other household elements apply 2 or 3 coats of LIBERON Black Bison, CLEAR, Paste or Liquid Wax with LIBERON #0000/000 Steel Wool. Allow the wax to dry several hours before buffing; for the best results let the wax dry over night before buffing. Maintain the piece of furniture using only the paste wax. Dust and buff only with a soft clean cloth. Once a year or when needed apply a thin coat of wax very sparingly with LIBERON #0000/000 Steel Wool. Allow the wax to dry an hour or so before buffing, and for the best results let the wax dry over night before buffing. lllll WARRANTY: LIBERON/star Supplies, and/or the vendor assume no responsibility expressed or implied, for the results or misapplication or misuse of these materials. 9/20/95 -- 2 of 2