1. Cleaning
The defect must be drilled out with the Kerasys® Drill [1] or an air pressure hammer until the damaged spot or dirt particles have been completely removed. It must be ensured that the damaged area is free from dust and grease before performing the subsequent repair steps [2].
2. Preparation
Remove Primer RC from the bottle and brush a thin coat of Primer into the damaged area [3]. Take care, that the brush is always clean. Leave to dry for 30 - 60 seconds.
3. Applying the Technovit resin or Technovit flow resin
Technovit resin
Take the corresponding Technovit 25... paste out of the syringe, using the Plasmacoat Instrument (close the syringe again at once) and apply it to the defective area (height 1 – 2 mm). When doing so, work out from the middle to the edges to avoid air inclusions. Produce a flat surface with the Plasmacoat Instrument [4.1]. Then cover it with the Insulating Gel [5] or the Polyethylene film [6] and cure it for 40 seconds with the Pekalux. Once polymerisation is complete, wipe off the Insulating Gel with a soft cloth or else remove the film, as the case may be.Technovit flow resin
Attach the cannula to the syringe and apply the material directly into the defect by pressing the plunger of the syringe [4.2]. Leave a small amount of surplus, carefully cover it with the Polyethylene film and smooth it down a little with the Plasmacoat Instrument. After that, cure it with the Pekalux [6] and then remove the film. Technovit flow resin can be used alternatively to normal Technovit resin if you prefer work with flowable material.Advice: The Insulating Gel or Polyethylene film ensures optimum surface hardness – without, it will be difficult to polish the area and means that the repair remains visible. So final polymerisation must always be done by using the Insulating Gel or Polyethylene film in order to obtain a high gloss and dirt resistant finish.
4. Finish the repair
The repaired ceramic surface is grinded smooth with the Silico grinder (2000 – 3000 Upm) [7] and polished with the Diafix polisher (3000 – 4000 Upm) [8] to achieve a high-gloss finish. Use the white trimming stone before using the grinder for the first time to round off any sharp edges and to shape it ergonomically.
For defects deeper than 2 mm
If the damage penetrates deeper than 2 mm, a layer of Technovit 2500 LC Clear Filler is used to fill the cavity 1 mm below the ceramic surface. Apply the Technovit 2500 LC Clear Filler into the damaged area (height up to 10 mm) and polymerise for 20 seconds without using Insulating Gel or Polyethylene film. Apply the corredponding Technovit 25... resin on top and follow the usual application steps to finish the repair.
Advice: The filler is also suitable for repairing unglazed parts when used in conjunction with Primer RC. Technovit 2500 Clear Filler can be polymerised up to 10 mm in 20 seconds!
