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850/866 Polyurethane Clears & Sealers
866 is a specifically designed polyurethane sanding sealer which has outstanding “grain wetting” characteristics. This enables it to quickly displace the air and moisture found within timber and veneer grain resulting in an ideal foundation for choked.
866 now stands alongside the amazing new GLOBAL 1508 Sanding Sealer. The 1508 Sanding Sealer has excellent substrate wetting, eliminates cratering and open grain timbers, has excellent build and filling and has an extremely fast turnaround for early sanding, Everything you would expect from a Global™ product!
Open Grain Finishing: Sealing – apply one or two double wet coats of 866 Sanding Sealer. Thin 10-20% with 850S or 900S Solvent and allow to dry. Sanding – remove any surface irregularities, grain raising, contaminants or air release bubbles by sanding smooth with 320 freecut paper. Air blow the surface clean and wipe down with solvent (such as I900S) to eliminate the chance of grain whitening before re-coating with Evic 866 Sanding Sealer. Finishing – apply one or two coats of Evic compatible clears: 520 Precatalysed Lacquer, 540 Acid Cat Lacquer, 850-Series Clear Polyurethanes, or 2000-Series Clear Polyurethanes.
Choked Finishes: Sealing – apply two or three double wet coats of 866 Sanding Sealer, thinned 10-20% with 850S or 900S Solvent and allow to dry. Deep-Grained Veneers (including Bird’s Eye Veneers) and Wide-Grained Solid Timber – Using more than 3 double wet coats of 866 on these surfaces may cause cloudiness in the coating. This is especially true over dark coloured timbers such as Blackwood, Jarrah, Walnut and Brushbox. To achieve a fully-choked wet look or mirror finish on these types of timbers it is necessary to pre-seal the timber with Evic 860 Sealer, allowing this build coat to dry before sanding. Finally, switch to 866 Sanding Sealer and apply an additional coat to complete choking prior to top coating. Finishing – apply one or two coats of Evic compatible clears: 520 Precatalysed Lacquer, 540 Acid Cat Lacquer, 850-Series Clear Polyurethanes, or 2000-Series Clear Polyurethanes